1. No category

LS1 ENGINE KIT
INSTALLATION GUIDE
LS1 Design and Development
Installation Notes
Technical Information Specifications
Engine Controls
.................................
Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction.
Fuel System.
.................................
2
3
5
7
7
...........
..............8
...............
..............9
Exhaust System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Engine Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Lubrication System
Accessories
Troubleshooting
Specifications
...............................
................................
Diagnostic Trouble Codes.
PCM Pin-Outs
I
..........................
19
20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Engine Contral Schematics.
(QGeneral Motors Corp. Agewed.
17
. . . . . . . . . . . . . . . . . . . . . . . . . .25
PN 88959384 Revised 91Y01
c
LEGAL AND EMUTfSSIONS
INFORMATION
TIIFS ~ ) i ~ h l l ~ aI?t rI~ICII~IP~
~n
10 provlrlr:
~ ~ f o r r n ; l r ~al7ot1t
c ~ r l t t LS1
~ t t ~ i . Ytt
- ~ a5.
seml~lv , ~ n d reldtrrl con.ootv<nls. Thrs
manual ,~lsn rlescrlt~rqprocerl~rrr><2nd
rnodlficnr~or~~.
that may t~r~ ~ s r l riurlnq
ul
t t l t . lnstallalloti of an LS I rwelve as.;rbrnt~ly.11 1s nor 1ntr.rltled to rtapl;lrp cornpn\hen?lvcx scwlcr manual5 and pnrls
catalors Illat covCr
englnrs and corn
emrlents. I?,~lher. r: 15 d c s ~ ~ n ctodp r o v ~ d ~
s'roplornc~~t;ll1nform;hlo~3tv nrraq of
Intrmst to hrin\rrlcdgenh'r ~ I o - I ~ - ) o I I ~ s P ' ~
erle 111 ~vrrstsarlrl r?iecb~ar~lcs.
Tilt< [)uI)l~cat,nnprrta~ti': to Prgirirb
r ~ n dvch~clrsr ~ h ~ ,lrr3
c l i used of! !he publlr.
IlrCllr,ny.; [ w e p t wkic9rrspcc~flcnllvnoteti
o f ' i r v t s e . rr?cteral lay: rcs1rIcts I h r rer7)ov;11or nlo~l~lrcatkon
of anv pan nf n frdcr;lllv rrlltIIrf!rl c~rnrnsS~Or1
COrilrol systrrn
or1 rrirltr7r v ~ h l c l r s .Further, many statrs
tlavc r r ~dr
led laws r~tirc!iproh11111
tarnyer
I ~ I C?!l*ti
or I T ~ odny
c I~~
E ~
~L ~
I Iems~
I P~~ T , ~
c,lnn or norsr contrnl qvsteri. V r t l ~ c l ~ s
it.ti~ctiarc not operalrtl on 'l!>frc IlighLS1 Fti!:ine Kit lluvcrs 5hi~1icIo?~tatr:, I
i " i d i 5 r l r gerler,
~
lllv C X C P I ~'rom
~
most rrqLS1 INSTALLAmONAND
Iso8 C a ~ i ~ ~ r o : r ~ r r lS> P
r r~
r fI C TL'l,l~x~al
F:
'Gh*tP
u1a21r11~~.
JS arc 7nmr spcclnl ~rileres!, j r i c l
SERVICE INFORMATION ss r-3) CI ~:W
~ F S ! ~ I I I I ~t{ ~h F~
.IT~I~~('.
~ h t ~pre-(!r?1iL,<.ronV P ~ ~ C I P S . ' I l r rwder 1 5
T!ilh ~~utlllcatlnn
prov~dcr-.
~ ' r ' r l ~ m~nforlrlal
C,~n~iiro/F~reI,lrd
S~mbcrMtanl~alcorirnlns Inl~trorl:<Iv \ l r p r l ID cttr-clc all app11c;jblelotlon 011 corrlcmnents :)vd proct-d~rrrqThdl mar, portnr~tsafel) prrrnutlans, cwqnc COr'lrol (f
(:,>I an(l S'.IIP I s i ~ s .
hr trsclul ~ d i l r ni n ~ t n l l ~ n
ory semclny! IS1 i t )
apno\lrc.;,
nicclinri~cal rrp;llr procrr lrr?,
ri3,qny ol ttw pans dc.;cnbcd or It~tpfl
plnr KI! PN 75534322. Top~cs~riclrrllr~ n s t ~ l l -!v r'nq scllr9rnarjcs. ;)rid other lrrlpnflanl 1rlfr)rIn t t i ~ st i ~ a n u ~;?rc
i l rnerchn~~rlls~d
'or oSII >!Ion notr?. S!IPPT]~!~ v ~ t e t 7 : ~rlr!ctrOn!C
.
17allOtl.
I
i
!
~
t
?
~
v
~i ~
n ,rd; ! i c ; r f ~onlv.
u n sac re tap,P.vcl
enqltip controls, r rc:omrnrtlrlrrf acccssorles,
Tlie toll-frrr telephonr nt r n l ~ c r ?
fnr nrdw
w8ttit ' i r Spcc~dlPart? '.ot~ct? rrprod~cec!
parts I*.;'?. anti cnriyJ17especll~c;rt~ovs.
Inp?Grr~erakh l o t o r ~sew CP I T ? ~ ) ~ umt':
~I~s
tl~le:
Tbr LS1 Eng~lnpl t r l pnglnc I S tr,~sedor] r t l r
h
1
.
5
.
1-800-551-4123
pmrl~~ctlur
1 C ~ ~ ~ a lrr!l~rcI
r n ' f LS1 cxrl?rnF:
I
SPECfAL PARTS NOTICE
Canada 1-800-668-5539
5c1rlihly. Tht7 Ibt may rnrlllrle ex[%lr~-.tmank
, Thr? pzfl t ~ ~ vt ~
; c e l~~o < ~ ~ ~ ' ~(IFc a l l y
Plensr rr,id 1111srrltrri. pt~hlicntrnt~
hr*fnr--.
lol!.<. nri automdtlc Iran?rn.%lon fl~y!>l,lTe.a
sl:r7c3rf for Olf-tl~?~.:av~lpplrcal~on
st;lrtlrlqrvorh
tr,
famlltnrl;~
yo~lrscll
!:*tf~
lrlstcll
;tnd a? ECM ltiat ,vl'I nprrate
L : ~ I ~ I ~'~nrneqq
~~:
n:it::. 51r1cethe ~ri.;:;jl!i~t~unnf thrg part
r s . ~nfornmrnnr;.I nrgat7orll K I i ( > pnqlre <)rid an elrrtrnii~c;tlly conl- Irl!lnn ~ i r ~ c e c l ~ r rThe
rmy vitt t ~ !twmlr
r
\,<!(IF ~ ~ e ! ~sl cr!?irsl~!
trolled clL(iDE autor~lntrc tmr~5nussron. Tllr
51url conl'r>l p c r f ~ f r ~ ~ or
d nt~,~. cIIIICCFLS1 enq'rlra a~srrnl)l\~
I:PIZ~S
,q~pr~%~m;l'C'b<
t ~ f l r c l unrlrr
curvnt hlator Vrlllrle
390 ~ n i l n d s .
IMPORTANT SAFETY NOTICE
SJ'O:V Sti~r~ili~r(Es.
I: shmtE(1 not t)r : r l -
1
I
L S I Encine Kit 'PN. 25534.5~~
I ~
J
C I
exhaust rnan~folds.flcxplate, wlrlng narncss.
and ECM. The assenlbly IS shown here wlth
recommended accessortes descr~hedIn tllts
publrcat~on.
Due to t h r :*:rde vnrlc71yof vehtclrq In wf~lch
LS1 Pnpjnes c;lr) he ~nstnllctl.Somr 1,rwe(1111~s
nrld reconlmrncia:ln~~~,
I nay not :t:>:llb: lo
.,nerillr ~ p p l ~ c a t a r Tills
\.
p~lhlicnltorI[, not
, ~ 7 ~to ~replace
~ ~ drn~nprel
~ ~ i i~' : i %
I ~ v~~I:V I C P
nlanirals and pans cn?,hln:fc ~ * V ~ I I C ~r:nver GP~I
cr,ll blotor< r>+iF(!iies
anrl c;omg?onclnl<
Thl\ p~rhl!cattnn15ltltenclpcl to h~ 11sct1
l>v ~,xl)erl~r~cr~cI
ancl l ~ t i ~ ~ ~ iiie~ ' ~ ~ ! ~ ~ ~ ~ ~ t ~ l ( ~
chat~lcs.It dor? r o t cnwv basrr id:",rc;e
prrhl>nratlorianti assemhly sltice 1: r < <lssuriic~lthat ;tip rr,tdcr IS r~lrra,jci;f~n~~lb,in
wltfl t ~ l r ~uCorP~i~~rt*s.
r:
Tllr. lrifosrnatlori con!alrlrcl In thls pubOt)~~n>.'c'
all saIr,'.v 3reca!rtI O ~ I ~an(!
Iicatgur: IS sub~ccl to cQanp,~.General
~,nmlrlz?rn t h apnl~c;il>lr.
~
senolcf>r,lnvlkl'.:otors illso rcscntcs the t~:,l<l to rnakc
015 wtivn I I ~ I ~ I Ior
! I~?orI<rr~.
~ ~ ~ ori :I[I LS 1
c.ti:rn@?s[I; ;lr7V lrlnn. !vrt!io~r: nnllcc. 111
Eril~)nc~
KI; rn ,iny v ~ l ~ l c l\?,,;lr
r.
c y r prrl
r t ] o l l ~ r i c w . t ~ ? a r ~ t ~ f ~ c I ~sp~cllicarr~rs+
tecllnn and apprnl~r~rrtf.
~>rt,tr.r:l
lve clor!?lor\%.;lrirl nialrna!s. or to discotitlrliri:
rn:.
S!1;1{1nrl 1 t v \J~,~II~:IC ?r~(:~rr~tv
v. 1:tl
'TPl'l%.
t;lrksl,lr\cl\ \~:llr7'~?vorl<r?r,unclr3nDr ;lrourld
11. Use orllv !'I++ oroprr !or>l~.
E<P~(.ISP
PYTtir: ,~~fnrrnatlnn
111 t h r ~~)~lt,llr:at~on
I(,
trc,me CatlTtOl i w t l ~ ~i:r!rklnq
n
i~11lI1
krrn
17rhwr1:~f!
i::ht.hat!t ;I-I?. 5?:drmrk!y. ~llblbe
n~.aI)?p.
corro\l!/(x, arc1 !1,~,>,1r(i!n1;s
I~C:I~I[I<, r:r~I,, 'or 1:s IlL,#:15 p ! (r(.!,*,
~ AS~IIIC-(I
! r; l l ~ c
; ~ r ~ ~rlntcnals
(l
l!<fmr. Speclflc- c o ~ : r ~ f l ! l c ! (ir.\!rf~.
~t
nicnm::+.rl\trps, and I!le rl~~nllflcirSomr. prnc~clrrrr< rcr.1r l r f x \ p c . c ~ ~ ~ l rL.~~llt.nl
~ILIIK o' ~~?cilvlil~~:~l
rradcrs ;lrr hcyond Ihc:
r r l ~ ~ q ~i l ~
t l c il w
sklllr,
~ t If \or1 rjo rln1 1 ~ a . r ~
coti:rnl r l i !lip ~ ~ ~ . r h lanrl
r ~ ltht3rcfcrre
~~r. t ? ? ~
t l l r l ~1ppropti.11rtrarnrr~r,, cxl~crl~qc,.
'ind
cll<clarns nll I~ah~lity
w c u r r ~ drr~
rnnl5 to prrlnrn. anv r);irt of t51s ~ t ~ ~ . T ~ ~ l l n ;:I :h1~sFmcr
c:oniicclloii s r ? h I h C LIT;^ of ~ r i f ~ r r ~ i i l t l o ! l
tlon liilfrly. !ti15 rdnrlj stlnlrrrl tv rlorlc7IN n
c:orll,&necl 111 Itlls pul~l~cnl!nrr.
prolras<~nn,+l.
CONNECTING RODS
T)w crns<-l~nlrrtlm a n caps m ~ ndnrp
d
nldrol cornpcnclt gmctps, sucli as
~l;lnk(:as? r111n11111:r
hIo(:h 111~tort10n
Foollny, Sb5tern nncl C n ~ ~ n cConTrols. SI<IT~E'I~
m d b ~ n d r ? qr~nderhi.?t>lonrlq. TI,? nr:c:w-.l
Plann~nqalirnd rvtll rrakc ~t casrrr te COT1 0 a convcnt~o~l;ll
D P ~ CRrl LS1 CflCI l I C x lr7<!,?ll;lllfjr'l
SI I(;L'~ss~II~~!'. I~lockdlffnrqc, lcornl),~r~a
sntall '>rock! r ~ r l i l c r - nnrss
,
and vbhr;llion
nzerl h y
LS7 DEVELDPMEMT
A N D DESIGN FEATURES
GM Powrr rrain ~rltrcducrrlthe L S 1 enyjrle.
the 5rrcccssor to t t ~ eh~r-twfaw C'ieb r n l ~ t
srnall l ~ l o c kV8. In thp l W 7 Corveltc. Tt-e
El rrtalrl? the or~mnalsfinall-l~lnrtr'scorn~ a c wre.
r
<~rnnltcrt\,, ~ n dtlr:l+i spec"~co l ~ l o l ~ t ,
Put IT is an rntrrely riew c.rlgrne that sh:lr~s
wn,f ~ components
w
v;~tll ltlc f 1 ~ivnPrrlt~c11
1
The 1997 C o w ~ t t eLS1 Pnglmrl was i;rt~d
a: 3fr5 h o r ~ r r ) o i ~ 131
v r 5.600 r~7rn.land ,750
19s.-ft, t0rq.r (at 4.400 rpnl). TLlc LSZ was
subwq~renllv off~rrr' In 1998 Cf~r3.vmlot
Carn,-lrn Z?H 2nd Por-:~ac f ~ r c h ~ rrnodrls
il
In
305 and 320-tiorsc(1~wer
vt:rsron?. The 2'001
Cowrlte ZOh ~ntro(lt~c~c!
il hrgh-or~:nut3 P 3 i-orirpor~~er
vcrslon rlcslRn;lt~dLSt'i. Thr L S 1
and 115 derv,~I~ves
are mt-r-nhcrsof ii r.li.lnc
'arnrly that 1s noib: n . 1 ~Yablc I r a i * < l c t r rarlc-n of
GGMvrhrcle? and ItrJit t n ~ c k sworlrlw~de.
T l ? r LS1 tllsnIacP.
T h r LSI's cnnnertlrlg rorls nrF for~pclpnw.
I1(\recl n ~ r l a l .;I rn~rn~f
3ct1fi~ r l r : !,nlcrss t ' r 11
TI,? LS1'% clrf (.vl~nc!crlirlers arc c;r:,l In
p l a c ~ R11x
.
nn I'>eI~rlcrs'orller rl~nn:ctclr anc i o r t ! , ~ si?r.im st:r:r~rely In thr I~lock;inc
Pkpe(lltc he;M 1ranslr:r tu [!IF:
>i~rrt)t~rlTI~np,
illuIrirntlli? ;ltld ct>oat-11DilS5;l?jL?,.
r ~ r m icfl<
? ! rod< l17aTorp \;+174 c o r i ~ t < t , ~;~ncj
r~t~ \ r t~lnllv ~dant~cal.
T i w ~~otvclrlr~d
mr>lal nxls'
'"iear nrt" S ~ J I I F ! n-.lnrn??p~
iFIrldt*flnS tn
i v ~ ~ g an3
h t I>.~l,~nce.
I h c rod t;oltq screiv cltr r c l l y bnrn t h ~rnrl
. fnrlcs.
CYPlNDER HEADS
The L S l !;ns iol.~rt!quallv sl~clcctlticiarl tlolts
arounrl Earl) rvllnr11.r. TI115 four Iwl! 11:-7!tr*m
tiwnln~i.fPsborc drs:ortrun .?rr,l ~ P ~ Tr t ~l r TI : WS
of fr~ctran-rccl!.~~
ng lnw-t e n m n [ ) ~ s ticrlr'~t!'.;.
5.7 Ilferh (346cu!xc
nchrs) anrl rptalns tflc or~~:!nal<ri~,til.l)locl<s
4.40" cvl~ndc'r burp sllaclri:!. Thr LS1 c l ~ f f ~ r s
'rom rts DrrClcCessor In srrrltftcar?! ways, n ~ l i ~ d1 1 1~0 ~ 1r~ ima;erl;rl
~
IcaC3l~ r o nvs. cd5t cllzlr?i~nilrnl.cylinder I w e di,jrnet~r (4.00' :1~.
3 . 9 0 1 . and crank<h;cct strokc (3.48 E..
CRANKSHAFT
3.62' 1.
Thr, LS1 cr;lnksli;~ft IS P o r l ~ ~ lc:ln
a r rron. Its
jotrrr,il 'lllets ,Ice rolled tc Inlprnvr* d~~rallrllh~.
Hollnw riTalrl :>earlny>In1~rrials r r r l i l r r ftlc
mass nf t h e rranksliatt a q ~ r n ~ b l y .
TIlp LS1.5 czs! ? l t . m l n ~ ~c:!
r l ~rlr,r:r f'r,lrls
haVP P E T I l V SpJCUd. 5)'11llllf'lit~rllr r 1:ahF: and
FXI~~IIST
DOTIS. The ~ntakPports nrj I h r arr rail1
ancl ri;lrr3':;,
wli~
c t'trv ekL-~nl.q'
ektts a r c nvni.
Cylrvder h ~ a d rockrr
'~
cover r;)ll extrnd?
thr too o f The vNvr s p r ~ w slo preient o I
T 1 ' ~
11.5.
1hr: LSL alurrll~lurnn1ot.K rentures :I rlccpsk~rtdesign, w ~ t h011 pan rn~lsthat extCnrl I n
For:. lhe crlnksl-af! r:entrrllne !c Ili~provcsliff
ness and r ~ ~ ~ c Each
l ~ t y 01
. ttle fivr? r~ia111
ht!nrlnq
ca35 I S S C C ~ I ~ C Ct?v
I SIX taslcners
Intir vprtrcal Imlts tllnt scrr-n rnto thc m a n h r ; i r l n ~
bull<t~eads
and tm:, acldit~nnalcrn.;s-bolls :hat
ariclx>r !'lc caps to Ihe qrdras o' !t,e blor.A.
p&9
":A
I::,
3' /
-
?
$-
I'
;
LSP CAMSHAFT SPECIFICATIONS
I
Year/Model
1
1998-99
1
The L S 1 hydraul~c roller camshaft has
lafge bear~ngjourr~alsand lobes to rnlnln74ze
iors~onaltv:!stlng and stress. The camshaft IS
hollow to reduce mass, and does not have an
011 pump dr~veEear or fuel pumu lobe. A
notched nnc a t the rear of tlic caiiishaft trv:
2ers tflc ca~nshaftposltlon sensor.
C
-
I
12554710
I
(
,4721.479"
I
12560964
Corvette*
I
Valve Lift
(Int./Ex.)
Pa* No'
1997 Corvette
C
1
Duration at
.050"Lift
1
Centerline
(Int.lEx.)
202/210
Lobe
Separation
117
I
.4T2.47g1'
202/210
1211113
117
I
1
-ebird
2uuu corvette
I
12560965
.500!.500"
201//212
122tI.17
119.5
12560968
.500/.500"
20Lf212
119'112
115.5
-Same as 1997 Corvette 1 ~ 1 td~ffcrent
h
cam trigger wheel
The L S l ' s valves. pustlrods and rocker
arms are pos~t~onecl
In I ~ n eto o(,tlmlze the
valve! r a n geo1nc:ly and reduce Inctron. Caststeel roller rocker arms aclcl s t f f n e ~ sto the
L S l ' s valvctra~n and enable h~p,ll engrrle
OIL PAN
OIL PUMP
sDeeds.
The LSl's producrlon cast-alum~nuniv ~ c t sump 011pan IS cles~gw?dto prov~dean unlnterrupted supply of 011.Baffles and a wlndage
tray ensure that tRe o ~ pump
l
p~ckup1s covered under high cornering toads. A moldetl 0Hyrlraul~croller i~ftersfurttlr
fr~c
nng gasket p r ~ ~ r ~ c lae sleai<-les~stant seal
tlon and w a r compared :u co, , v L ,
, , I flat
agalnst the bbclt's cxtcnded 011pan rails.
tappets. Cornpos~!e l ~ f t e rgu~desallen the
roller l~fterson the camshaft lohes. The LS1
val~,e;ra~nfcatures I~gtitwerqhtvalve snmng retalners and heeli~ve-shapedspr~ngstllat errhancc h~gli-rpm
perforqiance.
bL,u,
INTAKE
The LS1 Incorporates a h~gh-~ffictency
gerotor o ~punip
l
mountcd at the front of the
crankshaft. The crankshaft sprocl~etfor the
s~ngie-rn4lertlmlng chaln 15 ~ncorporaredIn
the o ~plrrnp
l
clnve.
IGNITION
D
I
I
The cast-aluminum all pan has a low oil level
sensor; this sensor is not u s e d with the L S 1
Englne Klt wirlnF: Iiarness.
The L S 1 irses a conpo51telntak? rnan~fold
that 15 I~ptitcrthan a cotnpar'al~iealulninum
casting. The man~folrl'ssmooth lntenor Ilassages enhance a~rflowand insirlate ttie Intake
charge from engrne heat. The tuned lntalw
runners and sequen:~al fuel lnjecrlon system
proclucc a w~de,flat power culve. A mass arrVow sensor motlnted a1 the front of the rnanllold provldcs accurate ~ n f o r ~ n a t ~on
o n !Ilu
amount of a]?enterlng the englne. wkrch the
Powcnra~nConrrol Module uses to cIeterrn!ne
the optlmum fcicl dcl~very.
E
C~LIOI culls arc. rnolrr-iltu LIII ule
L S I s alum~riu~n
rocher covers to supply spark
for each cylinder. Efec:roonc spark I1r1711iq S I ~
nals for the COIIS are tr~ggeredby crankshaft
and carnshaft p o s ~
t ~ o vsensors that prov~de
t i ~ $ I vacccrraIe ~ f f n ~ t ~rlnilng
o r i and ~nlsf~re
detect~nn.
The LS1 uses a rev~sedf~nng
order that drffers from the or~g~nal
Chevrolet small- block.
Tlic L S I f ~ r ~ nSeqUEnCE
g
1s 1-8-7-2-6-5-4-3.
Tlils rev~sedf~rlnlr,orcler rrnprovcs Idle quallt!,
and redtlces engine v~hrat~on.
INSTALLATIION NOTES
Note: All fasteners used on L S 1 engines
are metric. Metric bolts must he uscd to
attach all components (bellhousing, motor mounts, headers, etc.) to thc cr~gine.
;I5
~ILI!?~ P;~rltr,~-,t 1 ~ # - i:v
1tfh .*l;~f-~>
e:lCps t>p7~,:;?v1l llr->l~
,?rlEIl>?S
L31\ti t I 7 P
USE
crankshaft
f?;~n~:c
spnccr and
SLlll~Ille<l
I ~ n l f 5w ~ l h
fl.11
ilvxpl.7tc.
il!!'!>r-
* l . ~ > ~ ~ %>':7;jl!
r ~ v l ~! )~' Ii ) l!!
LS I !Y,
C O ~ ?b~:-~l ! > ~ - l ' . ,
~5 :?>@'ort ) , ~ ! ; i : ) ' ~ , , ,!!.,
> ~ T (!r
J ,.:P?, i ; X 1 ~ i l L i , ; : r T j ~ ' ~ ' 1 f ~ 3,:, : [.J;r+q
! < ~ !l :!'I:?'
,,
-7,
, ,: , h ~ ~ ! 5
c ,! ~are
. fy~!
~ ~ - , ~ ? r ~ ~ ~ L",''~~~TI
~ ~ ? r , ~ - ~ , ~ ! ~ l i ~ ,
c o n i p u n ~ ~ ? r ?!I[-!>
i'?
CS3
1 ~ 5 ? a : +311
!1~
~ : * F I Wil'sr'!?'!'
'.
8"
I:
1.1'~
i,~''i
pnt or':?,na1ly~n:r,l,l~c.tl
i4;:il> ar; LS3 r l r ~ : :I : # > , I'
y.!I! i?: F-OI:F~,:~-L
- 0 ;j(!,?!):
<:I! ' , l ! > ~ , r . ; l,:,lrlol
r
I<*
c,>~i'[:o!~crfsi@r:l*e c~nlir!!~, I . I I > I . ~ ~ l c r * r ~ r . ~ l .
a:,{! e.t:ni is! s:5:prn5.
OPERATlOlUAL GUIDELINES
FLEXPLATE
Recommended Oil Type: l i J o l ~1
I IO!V '30
Recommended Fuel: l!nlc;~dcd prr.ukr:lnr
!F? Mi31
:-;I o{:tnrie
Maximum Engine Speed: G20r3 111111 PClLl
t-l~l-~nll~d:
MOTOR M O U M S
L
"Drshcd" flc?
125Tr313G
4L60F t r a n \ ~ ! ~ r ~ . - ..1~1rl
~ o ~ uf l r ~ t '1 <:YlJl,l!4. r > v
12551367 ~rlr:tltlw k l l ~7 9 H r ~ i mI r r ~ f tI n l t r r n for
rarly 63LfiD. 71xOR4. THhl . I ( ) [ , nnri T+I'<l ? ,(I
transml-.\ronn,.
K-
PN 12561680
- !. .:.
4 .
! ,r>!.ryh
' .)..t*i>c.~
AUTOMATIC TRANSMfSSION
The L S 1 I>iock has multiple bosses t h a '
I,c used lor custom enjilne mounts.
I
.3n
I
I
Thc rccornmendrd 4L60E automat~c
tr;ln511115~10n~
liwe ~ ) ~ O V I S I O I I $to mount a
torqilc' arm.
I
-,--
-.
' I ?
.
1 .I
,
,
. r
..,
8
-- -'
.:
T h r wlrfnl: Ii.~rnr.;< ~ l l ( ~ p l ~~ *~- 1t lt1h1r LSZ
Enync Kit I< r l r h ~ r i , n r r l'for ;I 4 l G O C f o u r - ~ p r p t l
,it~lon~atl<:
ov6*riIr1"1P
~r:h~~-,lli~~~~o~i.
D~rnensiansfor motor mount boss locntrons
T l l r f o l l o v i ~ n41
~ fiOL nlltol?idl:,c: trar-smls
reconln~rrjr
tr\d lor ilsc r : l T t l LS 1 r r l -
$10'15 i l r r
plr-PS'
PN 24210673 1998 C n r n ~ r n ! T ~ r ~ t ~ ~ r c l
PN 24212632 t'399 Corl~~lrn'F~rcb~rd
PN 24216077 7000 Csrnnro'f~rct~rrrl
L;sr :he fhllne~t~*:
fxtencr.: i.,A~tn ~n<tnlliri[:
a 4 L f i O t transrnlv~on.
PN 11515767 Br*l'i~n~tq~riy
t ~ o l IX
t ~ rtbcl.l
PI^-r I1~3cts
arp rn111[>;1!1t)Ip
Q?;I!.~-I
thr- 13Ckl #.)I 11-
1 ~ 1 7SI~J!~:I!r~nclcar) 1-JV ~ : , ~ l ~ ! ~ alor
€ e[l~ffPro~?i
cl
rj11 105 ar?rl 1 1 rc ~
!I:IP~:c~<.
STARTER
U S P 1 ' ~ t r l : ) ~ :S~t d~l ltPr
l ~ ,ll>r!
ntk LSl crt? * i t > h~~.;t,~lt;lr~r~n?,:
f a 5 ~ ~ , l vf i0 <
1
PN 10465385 Rt,rrtfir
PN 22561848 13r 1 . 7 .
rr:qr:f
PN 12561387 t?att, rvltrr
AIR FILTER AND INTAKE
PN 1261968 Cnnvfrtrr hnlls ( 3 req.)
The 4L60E transrniss~onhas a full
bellhouslnR. Access thc torque converter
fasteners through t h r removable plug.
<-
h15t;lll PN % t i 2 7 7 i 2 !~tflril:..to cnllvert t n
~ ~ ~ v e r tf e
l, rtr l b r:nnler Idnr:.,.
I.PN ? ' #l7(3,.,,,
;IS
:
u,08
:
I
ii,a~)!tltl
- trtm t r r f ~ t
1
rcq~k!r1:11
[ f % v <~ ~I O L V I I.?
I
fi tmnsralls';lnrl flirlrt coolvr rn~.<thc usec.1
4LGOt ta>r<smtsson.T l ~ t *Iq~perf ~ t
t " r y routes flrrlci nut to I t ~ con!rr:
e
!tlr lnwrr f~!!!I<;; 1(~1tW15
f11tic! 10 T t F !?Jnsf)3155lCbli.
T o l!Se
~nvrbrtrrl llsrr cooler I ; r ! c ~ , rcnlnve ttrf: (11 fir!<connect f~l!lnp>5sl:~lnlrd'rlwith tbr: tr.ln..n~lsslon ;mcl 11751.1'1 PN Sl(i37742 f~:t:nr,s.
W I I ~the
Ske .1C6OlI transniss>ar)ri Il\rs arl rlrr:
lrorilt: spcutlonirlrr: : h v r nrr rlo l)rni~lslon<
for a rnecl~;~n!c~~l
Tl>e~rlof-~rta~r
~ l r ~ v cTl;c
.
-.
PCM speeclonirtrr 01jlp1I: [E,OOO 111ll..-s p+r
1 >s- "~
ni~loj;.I cornn3lllllr v~bfv G V or1!71tl;llrxolllnlnerkt r.t~ctrorrc s f ~ c , r ~ r f r ~ m ~ tiIv
e r s . c.prr~d- 1. I'P. .' I 1 7 9 7 1 1 AII 1111.11
2. PY 1;'16024A Intnham
A r r Td~nipewturr(IATI
ornrl(>rc,h~hratlon15 lrlr n 3.23:1rc.lr , r x t r
scnsnr
raIro anti 8 13 trrr! rcvoli~l~nrr<
pcr mlbt3.
3. PY 2 5 1 4 7 2 1 0 Duct Ic~rrved]- includes IAT
-.
sensor
Vehrclnt, w ~ t hclaff~rrr-t; r ~ l ( ~ ' t ~
coryfleura~
rt~
4. Plug EGR port.
t~nlisrequlrc ;1 cor)rl~t~on~rg
tl(>v~cr
hefor? t1.r
s~pnalIS sen! to Thrl \peedomrbtr.r t ~ r ~!hcsc
rl
rlr v ~ r c sare avallnblr! from n f l r r i v ~ ~ rsupl>ll
~r?
PIS .;~rch a5 JCL. Arrtnmrtcr c'r'c'rlr' =.~~t*r9(lum-
- - 1 , !
-:!O
-
tl~rnadinserts In manifold to
1
EXHAUST GAS REClRCULATlON (EGR)
L:t1r7rvc!
a
I
,I '
I
' I h x P 1r1 1'\13 rral @t~tl#-.tt l l *
or
4 rn11c1
40
retl~rnE~o%r>
10 ttvL lrr~nl rarlla[or.
w:
r ~ i , ~ ~ ~ *b
~ ~~\ <
; td~*t?roi1 ~ 1 1tip
UstT rrl,ry PN 14089936 In cuntrol thr
"
1
PIC
c ~ C- r i:tl
~TP,:,J:.
RADIATOR
L
Wat
COOLINE SYSTEM
1.Upper radiator hose: 11-1"I8
C ; : ~ r l ~ - i ~ ~ ) ' FI rLS
r~~
1 .l ~F-?
~ r ~L{:>,' ;I
Note: Failure to connect the cylinder
head arr bleeds properly c a n rcsult in an
internal air tack and cause englne dam-
ace.
FILL TANK
2. Lower radtator outlet: Gnrr5 27?76
3. Water pump inlet: : ; n v r 57 l r W T
4. Fill tank to water pump: LIT['<
70233
A T - J I ~ 111t)c
S ~ ~ ~~I I O I i t ! tx? ~ , ~ t ~ r l c d ftr P3m
rl
a l t l n ~ ~rrn
r l ~'~rbrl~+:
In ~ d , j n :the 1
r.~d.;tnr
oullci In t l i r 1 w . ~ t c r[limmll ~ntrb.
FUEL SYSTEM
Tllc LS3 f~1r.l ~ y ~ , opt-alrr,
t ~ c ~ ;ll t~l,~)ier
prv?s,lrf3t!!
;I c c ~ ~ i : p n l ~~. ~
J T~! a
? ~l I V \ #-.,,s?O~
ton). I::(
c.l;lt~nn
? i-;t)eri r l s < C n ~ l > f ~IF-re
! l ~ f11eA
S w l P r ? ,-i?if!
(:lli1cL, :I!'
, y .a x j i,t r3sr f * ~ ) ~
IarIy fnr lerllrs. lJsc rc1r.v I-'N l~10Y-J~l3FE
tn
ConTrol lhc 4-lct:lrlr: 7 1 tel 1>~1ni;3.
!
FAN
7
~
LUERiCAflON S Y S T E M
A 10'rv-30 svnlhetfC 011ls s"'lahlc for
opemtlngcondrt1Qn5.Operatlun In
Or cold lnay rcqulrc O'l wltrl hlEher
lower YISCC
ctlvely.
Or
6
Tllc CS1 Enpme Klt a5semllly usrs a
Carnarolftreb~rclor1 pan. Other p r o d ~ c t ~ n n
pans are ava~lablefor custom ~nstall~llons.
Tt~esepans have vnrlnus depths arwl conl~y,uratlons as si-~clwrrIn lhr: nccomp,lnyrrlf< ptlotos. Notr that cach 011 pan LISPS ;I sprclf~c
wlndajic tray and QIIpimp plchup. CallnclTlcz
shown are w ~ t hand w~ttioulor1 IEltrr rr5pnc
Iwely.
NOTE: All dlmens~onsappronlmatc: for refer.
cnce irsc otlly.
-
1, PN 125t,,,,
Y,, vette
2. PN 12558762 Carnnre/Firebird
3. PN 12560393 C!K Truck
i: t . ~ c : , m ~ s I
,,,,I-~ I 1 > , 1 l ~ : ~ i ''. t , 1111 1, ,,I
for ctlzf33~sa~ :,LI~IIP~~<I~~I
rtmtB1.1cr GI?
s h ~ : . i nIn 1.71sLS L ~n.;tnli~t~ori
In A 1CI55 Ct~c.vrolcr. The par1 sl trnil, rvas r ~ u ~ ? rYor f clrt,ar thf,
Steer~ncI~nhaf,e and ~ l ~ o r t r r ~for
t v l Eroirnd
clearance U O I ~ tti;lK
ttlr IrarlSllllSSlnn
k:Ihouslng 1s ilt!;lchrCI tn ttlr ?truc!irrnl rill
pa? casllrln, nla" one Ct)oI! =Icr wlr.
88
I
Corvette o il pan with ail pump pickup PN
OIL FILTER
12558750.
T
**
..-
-
I
* '
t a l l I ~ o s sfor amermarket 011p r e s w r r
gauge sender rf required.
Drill
L
Corvette oil pan with windage tray PN
,rlltl
ACDelco oil frltcr PN PF44 1s recornmended for L S 1 engincs. If space pcrnTtt5, PFS
PF59 may be ilsed ro Increase filter ca~ac11y.
I
12558189.
PN 12560393 C'K Tr~rchr;T;:6.5 rlts.1
l-lolctrn 011 pan PN 1256151.1 (nut rliown)
f r o l ~ t - s ~ ~rle?~E~i
nip
t h ~ t(:;In IT ~lscrIIn
nppt~cab~nn?
with rc,lrVvartl InGiltPtf Pngifll:
crosSmcrntlcrs.
OIL PRESSURE SENDER
,
1s a
C M truck olr pan mtn wlnaage may r n
12558268 and oil pump prckup PN
L2563961.
L S 1 Fnpjnc Iq~tsarr ~ l ~ p l l with
c d t n (111frrrnt tvl)r\ of 011 prr\surra \rncl~n,qun :q tall a r ~ d~ h n r tI!. kour r r r q I i P r~ P ( I I I I ~ ~ C C ~~w~rl:'?
stinn srndrr. ~t shoirld tlr c h a n g ~ rto
t tnP tall
qtry{i(, ~ I Tvf5r<~or~.
I
T*?t\ S P ~ ~ PI<, I rnnipat~btr
w11l1;i ~ ) r t x l ~ ~ c G11
t ~ n rr:aupc
~
(80 p s ~m;1*1~ n ~ l n Ti )l i.r srrnnl IIOIH 1t h t ~oil l)rr3v.urCsencl~r
15 not r l s ~ r t7b
l the PCk4
COMPRESSOR MOUNT
ACCESSORIES
-1. LUBRICATION SYSTEM
COMPONENTS
Part No.
Application Description
12551577 F~reIj~rd
125515&1 c"t"a'0'
F~re
hrrd
12558762
12558253
12558251
Canidrnt
F~reb~rd
D~l,sIlci\ b1. t,t~
nlpstlck
Cilniarol
F1reh.m
WInda qr7 t rav
FrzrT
041 prrrnp
pickr~l~
12563918 C/K Trt~ck
D~psticktub?
12558684
C/K T r w k
D~p~t~sk
12560393
C,K Truck
041 pan
12558268
C'K Tnlck
Ifv'lrldagr tray
12563961 CtK Tnlck
I
011pan
n m ' s can t ~ ~
r ~ s e111
r lInrlnv LS.1 ~nslall;~tlr)ns.
Colvt?~c
D~nstrcht ~ ~ h f :
2256246'
Confet?rl,
l-lol[leai
D~llsr~ck
12561828
Corvette
011pan
12558189
CORC'!~'
Holden
LYll7dage tray
k2561544 Mo!dcti
IMPRESS
ALTERNATOR
I
Corve:tc
1
011 (,umo
plck,lp
12556405
12558750
r;
The following componerit..can be used to
t S 1 accessory drivc ,.r ,.tern.
mount an air contl~t~onur
cornpresson nn an
L S I engllir?:
The LS3 E n ~ ~ nKIT
e does nnl ~ncluclr~ c - 1. PN 11515771 Bolt (4 req.)
2 . PM 1 1 5 1 5 7 7 1 But1 ( 2 req.)
crs?nrlc$ w c l , #75an nltrrna!or, pnwer vrrm
PN 12556677 Bracket
Ing Ixllnr,, aoct nrr corlrl~tlnn~ny,
con7prcssor. 3.
4. PN 1137028 Cornpr~ssor
Prodl ~ cIon
t
acctssorleq i111(1 driiv COI~ICJ.
5 . PN 11098331 Rolt 42 rerl.)
011pir7in
plckLja
I
L PN 10464402 Alternator
2 . PN 11515767 Bolt
BOWER STEEFJING PUMP
3. PN 12556915 Hrace
4. PN 11509666 (3olt
~ ~ p s u cr uhb r
12561541
Il o l r l ~ n
011
pa71
12572654
Holdcv
011 p u m ~
p~ckup
I
--.
2
L
The fallowlr~: c(~rrir~trr~r*r~!>
calrr h ~ r~sr,rl
to
mount a p o v . r r stl.j.r~ri!: punrp o11an L S 1
enjilne:
1.PN 26040467 Cap
2. PN 26068934 Reservofir
2. PN
3. PN
4. PN
5. PN
1 1 ? 16366 H r ~ l t
1153 6366 Bolt
125h3327 Bmcket
1151fi360 Bolt
3. PN 12569527 Belt
4. PN 12559885 Pulley
5 . PN 1407KH96 Bolt ( 2 req,)
6. PN 12555Ci93 Brncc
7 . PN 1 1 5 1 5 7 5 7 Rolt ( 2 req.)
8. PN 26068r)3C Pump
9. PN 1255733 1 Bracket
10. PN lt5157G7 Rolt (3 req.)
ACCESSORY DRIVE fENStONER
EXHAUST SYSTEM
Tllr, L S 1 Engine K I rs
~ sul~pl~cri
!:.TI1
,.
-5
.
.,-,*-.I=
..:
.
4
5
-
Pmrl~~ctlon
L S 1 P~!I;IIIS~
r?lanif~ldsfur oltipr
;ir~r>j~cnt~or~s
can 111. ,~~1;111tcd
to c ~ ~ ~ instal~ t r ~ t ! ~
1:1!10115. N O ~ P~ I I I )IIII!I-.I(~IICPS 111 P ~ S L OI.I\~C,
~ I I ~ ~
I o c . ~ - mawl
s l ( ~ f ~ l > IS.
J t P3r? r i 1~ r ~ i l ~l~\tccl
~ r 7 arc?
for ca5t-irorl 111~if-11fnlds
i a l t i ~ r: t . , ~ r ~ tPf3 fat)r~catrd rnarl~'fir(ls sI-IQ'c!~.I r l ttwr,r rnsrances,
.&w-+the rj!wr;~Il (!rb~-,~g!-ts
of T t l t ! I I I ~ I ~ I I ~are
O I rL?f*
~~
'
-+
'
[Ira-
1.PN 12560345 l . ~ ! ~ i . > ~ r ~ ~ i c r
2 . PN 11516356 Aort r 2 req.1
-
-.-
sarnc.
m
-ji
CAMAROfFrREBIRD
LS 1 EXHAU?j T MANIFOLDS
C O R V m E L 5 1 EXHAUST MANIFOLDS
WATER PUMP DRIVE
PN 12567706 CdrnnrolTrrr.!>~rd PH rvl I)
ELR Iln~,.;I
PN 12554507 C;in.;lrcr 'Trr~b~rcl
LI-I
TORSIONAL DAMPER
The LS2 torsrotlal dawlirt n l ~ asrwps a'
the cnnks!lnft p ~ ~ l l efor
y t h r ~ l r c r s s o yd r ~ v t .
Clankshalt p ~ ~ l l c varc
s nv;~~l,?l>lp
rn drffcrvrlt
confip,urat~orlsto fit varlokrh ~nst~llatrons.
Tlv
d~mcrrslons shoivn R ~ C :It)(?
i ~ p o r ~ ~ ~ r n1115
iitc*
naticrr from the rear of t h a~u l l ~ yto Ihc n)l~llcl
l)oqscs on YtFe froril cxnyulecovpr.
lleadpr f!,3nf?!-.: for L S 1 crl[31tir>T.
;!r? A~.;
lfi as PY i :,J.:80I30 lor [:I ~b~!(:~nj-tj~j!i:
1
llarrsl 5v';tPrrls. Prnd~lct~nrl1.51 evr1;31.1?1
nlar~~folrl
1:;1slrrJts :P\ 17!i59573 - 7 rPrl.1
a r ~ t lrrivrrlc fas!enerc, fl"c 12551187
12
wrr. ! ir? r ~ c o i ~ ~ n i ~ T!V'SP
t i d ~ tEaSb,PtS
~.
Can
11- rr.11wrl , I In fioorl cnr1ri3t~on.
.
NOLDEN LSI. EXHAUST MANIFOLDS
D1merl51ons
shown arc ;~pprox~rnate
d~stances
from round bosses on front cover t o rrar of
torqlonal damper pulley.
2.PN 12553118 Carnarn Ftrc~t~~i(l
Damper
(1.00,
Thp LS1 crrrnli~5;lfl damper retalnlnl: t)dI
"torq~reto vleld" f x t c n r r . If ~t15 e v r r nf*c
csury to r ~ p l a c rt h r t~olt,a new holl ~110111d
tw ~ristallcd; do rrol rrl!rse a flrrv~ntrslyInstalled lmolt. Trp,t~tcnthc n r w bol: tn I 10 ft.Ihs.. then back off the Imlt one Irrm. A r t l g h t ~ n
the hoEt to 3 5 It.-H)s.and t h ~ ttirrrl
i
1 1 1 ~ bol!
"
an
additional 140 .
15a
L S 1 exhaust man~fold
gaskets and header
flanges
ENGINE CONTROLS
ELECTRICAL SYSTEM
I
I
h
L 5 1 wir~ngharness. right s l r l ~
I
1,Injectors 2,4, 6, 8
I
L 5 1 Encine K I wirrnf:
~
harness
1. Data Link Connector (DLC) and MnIfunct~on
Indicator Lamp (MIL)
2 . Fuel pllmp relay
3. A;C comprrssor relay
4. Fllse block
2. IC control hank 2 (RH)
3. Crank wlre to starter
4. 12 volts to starter lug
5. LH bank
6.AH hank
7. Fan rclny
R . Fan connect~on
L
L!5 1 wiring harness. 1left side
.1. lnjccrors 1.3. 5 , i
2. IC control bank 1(LHI
--
1r1. ~:ol~iprpl~pt
,SIV~: 111forf11~1T
,nQOTI t IF ~r
I~T,IT~P
cuillrn! v;?:efn. 11ic111drr-2
~ : ~ ~ t c ?FXL>~;II>J~I?cl
~ , o q ~(I'~ :Dla?nostmr:rr0~1!1!~1
C n d w ( DTC ' nrvl
dra:,rlrm-,Tlr proc?r!\~rl-!<.refer 10 7 1 1 ~ 1998
Ca,i~~rr,:Tlr~<l)~rr[
Serw:r-. FA;lr7rr;i!.
Toll-frt.~
r
t , l l orrlert~fel)tio~ir: ~rnhefifot -,mplCmnrl~
In??~n~ornlntirl-~
ATE:
'U.S. 1-800-551-4123
Canada 1-800-668-5539
SYSTEM OVERVIEW
I
P S I Eng~neKit wtrmF: harness
1.Data Link Connector [DLCI and Malfi~nct~on
ltrdrcator Camp (MIL)
2. Furl pump
Blvc = Fuel pump cauge
Gray = Fuel pump power
Black = Fuel punip !:round
3. Gilugr?wnrrng
Grn~TVht Electric spepdometer (optional)
Prnk = Voltmeter
Pink = 1 2 V to 4'C sw~tch
Blue = Fuel f:nuge
-
Note colors of connectors (red and blue)
whcn connecting Lrarnsss to PCM.
Dk Grn = Coolnnt temperature
Tan = 011pressure (for GM cluster only)
GtirMrht = k C requpst
Whrtr :
Tachomrt+*r
Pink Purplc = Torrluc converter clutch
(TCC1: open with h r ~ k c
pcdal deprcsscd
4. lgnttlon switch
2 Rwd = Eattrry powcr (both to E+ Input
vrlo o f ignltlon swztch: alw,lvs hot)
Pl~rple= Cr,frlk tn starter
P ~ n k- Sw~tcllcd1 2 V t o fuse hlock
sllum~natcwhen co~lncctedto the crrCii~t.II?
some cases, even an ortllnan, shop voltmeter
iv[II not give an accurate readmy, Iecause ~ t s
rmstance rs too loin;. A d g ~ t r lvoltmeter
l
wrth
at least 10 mep,anllrns anput ~rnpedance1s re
qu~redto ensure accuratr! voltace readrnr,~.
MASS A1R FLOW (WAF) SENSOR
COMPONENT OVERVIEW
the f w l ~nlectors,Idle Arr ControF IIAC), cool-
AH of the sensors and he r n p ~ sw~tches
~t
can t~ d!a:qnoscd throum rllc 1 1 sof
~ a Tech 2
scan tool. J h r tools
~ arc nva~lnhlefrom Mac
Tools and other sources. Ttic scan tml c;lm
3150 be ilsrrl In order to compare the valucs
for a normal running PnyJne rw~ththe c'nglne
hemp. r11;lenosed. (Srf! nnte pace 18.1
Tlie ??as?Arr flat?: [MAR smsor measurer,
the amormi of arr cntprtnl: Iiir enqlne. Tlic'
PCM uscr !I115 ~nforrnatlnnl o ~Eet~rrnlnr
rhr
operatrnf: cond~:ror?of tllt5 mglne rn nrrtrr I
control thr f11pIdellvew h Inrce quantllv of n
lndlcatr? nccclcrat~on.A vnafl qr~~-inttly
of a
rndlc:~!r~decet~mtirmnr 1(1Ic.
ing fan rplavs. elc.. hy controllinp, the ,?round
or t h pawcrfeed
~
clrcurl through tmnuqtorsor
a dpv~cecalled an O~ltputDriver Module.
Thr! f a l l o w ~ ~1g5;l short descr~ptluqof how
thr scnsors and srv~lchescan b r cl!agnosed
v111tia scar1 tool.
The PCM monltnrs the rnput compo~ients
for c~rcultcont~nultyand out-of-rarlp>evalue?.
The rnput conlponents ~ n c l u dttie
~ iollowlny,
ENGlNE COOLANT TEMPERAWRE (ECT)
The MAF has a t~:jttery feed. "rrlb~nc?,and
slRnal c ~ r c u ~Tt P. r MAF used (111 !lw CS1 Cr.
plop K I 15
~ a hot v:tre tyne. Tllr. MAr utrtnut frr
ciucncy 15a f1111c11on
d !tip pnrwr r f x ~ ~ ~rr,~ r r r l
keep t k a r floiv sensmq~lmlents(hol w ~ ~ r s )
al a frlrrrl ternperat~lrc : ~ t > ~ vk cb ~ar?~lrrrn!
tcrnppr.lt~lrp. A r c flowny, throup,h I h r sensor
cools tlle sensrvg rleriwnts. The amorlrt of
coolinp, IS proportlorla1 to !he ;lmoirrit of alr
flat*:. :.he MflT wnsor reolllrrs a greatcr
nnloiltit of currrnt in ordcr t h r rrnlntaln 111~:
llot wlres at n constant temprrnlure as the nlr
Row incr?nsrq. The MAF spnsor c a n p q s thr
cllanges In currenr dravbrtr, ;r f r r q u r n c ~slr~n.11
read hy thr PCM. Tf,p PCM then r a l c : ~ l , ~ c ~ s
the alr flow (granls prr wcoticl) bascld cn l l i ~ s
slcnnt.
The PCM controls ot~tputdevices
S L I C ~as
sensors:
m vr?h~cleSpeed Scnsor IVSS)
r Mass Alr Flow (MAFI sensor
Intake Air Temperature ([AT) st?n5or
Crankshaft Posllron (CKP) srnsor
Knock Sonsor IKS)
Throttlc Pos~?!onmPI 5cnsor
I
Enyne Coolant Tcniperature ( K T )
SCIISOr
Camshaft Poslt~on(CMP) sensor
W\tl
.1
13111
r:c>olnnt -,c.rin,ttr
PN 125517OH. Tttc
t h ~ r tpun
l I S for the coolant tempereturt:
e i r r ~ f i r . . and rs only cnnipatible w ~ t t GM
l
pro~li~ctlon
gauccs.
Man~foldAhsolute Pressure (MAP)
sensor
VOLTAGE REQUIREMENTS
The PC91 monllors the MAT qrnsor Ircquency. The PChl can dcternxnr: t f t f T r wnsur
IS stuck low, s t ~ ~ c
ti~yb.
k
or not ~)rov~dlnq
tb~r
Thp v a n tool reads ftlr fv1hFvrrl11~
and rllsplavs 11 I r l grams pcr sccund (551.Tlir hlAr
serlsor rl~spkair;b r l w r r n 9 gts - 3 ;P I. nt cllc
of) d fttlly \varniecl u r ~rtlglne. T h r hlAT scnsor
value5 ~ h o t r l dc h ~ n r;rfbi~?r
n ~ TIIIICJ~Y
011 accelpra:rOTl, hut tiir: MAI senqor v;lI.rfi.; shotllcl rtxt n a ~ fa~rlv
i
st,~t~lr.
at any jilvc31r FPM.
The PCM contrnuously nionhtors the q s tern voltrlf:r! through thr ~ct!n~t!on
feed crrcwts.
tfoltape~t~clow8.0 volts nr above 17 , l volts
causv Improper systrrn operilt~on andtor
comnonent darnam?,
a TbPrmrstor (a rtTS~Stor
i ~ h l c~tl.rlnEt?~
l~
VR[UF:
T ~ PCM
P
opentcs In a default rnocle ~fa
PCM voltage PTC sets. Ifthe systmm volta2e IS
!owathe PCM rases the Idle speed In ordcr lo
Increase the generator o~~tpu!.
The PCM rlrsabres most r>utputsto p r o t ~ c the
r harclv~arc~f
the swtPm voltage 1s too lhaEh.
based on ternpcrature) mountrd In the left
cylinder head Low coolanl Icrnpcralwrc proThe f o I I n ~ * ~DTCs
~ r q s c when
~
rllr PCM clc
drlces a h~ryhresflstancr ( 100.000 ohrr-' t ~ t
tects
a
mallunct~on
In
t
t
~
i
'
MAF
scnsor
c~rr-ual:
39 F) wllrlr. h~p>h
temprmf 11rrcauses In,v rcsksrancp 17(.) otlrns at >r,Ci F',
a QTC PO101 klnsq h ~ flow
r
Systnn
Pcrformancc
T t i ~PCM suppl!cs a 5.0 volt s r ~ n r ~
10l the
A scan tool rvnll not d~splaydata r f svstern
voltage IS oulslde t h ravge.
~ ~
englnc coolant tr?nlilP~i~lUl-?
SenSDr tllrnr!gtl a
rcs~starr11the PCM ;~ndmeasure? Ihca voltage.
Thr voltage rv~llIF h ~ g hwhen thr cny,rne 1s
cold. Thc voltapc 1~111Oe low I ~ V ~ the
P ~ IenpJnc
IS hot. The PCM c a 1 c ~ : a t ethr:
~ crlglne coolnnl
ternpemttlrr: ljv mcasilrlnp, T I v voltacc. Thr
englne cnolan?lernperaturi. affects most 5vsterns t h r PCM controls.
WIRING HARNESS SERVICE
When repnlrlng or servlclny, t r [ ~engrne
control w~rlnc harness, Lisp wlrlng that has
hgh ternpcr,~!~lre
~ns~rlatlon,
Rcmember t h ; ~
t
toe erlglnc control systern operates at rrlaIlvely low voltage and amperage I~vplS,su
mabe the hest possrblc! bond at all splirrs usnnp, rosrn-core solder.
Repalr~nga connector requlrPs complete
rcalncemcnt of the connector. Spllte a ncw
connector Into the harness.
In order to prevent shonlnc between trrnrrnals, usc care when proh~np,a connector mid
when replac~nglerrnrni~l\to preven? tlilrn;lf!e
to the components. Always use junlppr rtlre
hctwrrn connectors for clrcurt lest lnp,. Vever
prol~r:through Wearh~r-Rackseals.
..
Thp engine cofllant ternoerafurr! serlsor ts
DTC POI 02 MAT- Sensor C ~ r t t LOW
~~t
Frequencv
DTC PO103 MAF Setlsnr Clrctr;t High
Frerluency
INTAKE AIR TEMPERATURE (IAT) SENSOR
Tho scan tool t31qpl;lys engine Coolant lemperatirre In degrccs. TLleenclne ctlol,lnl temperature and ~ r ~ t a halr
r t e n ~ n e r , ~ t l ?lio~rlrl
~rr
C
II close to each othcr ~f thc ctv>lrie has not
I~ccn
nln lor srvcral hours.
The follow~nr?DTCs set ivtien the PCM rlctects a n~allunc!~on
In lhc K T sensor c~rcult:
Ooen crrcrllts are often diff~cullto locate bv
srg%! hecatrse oxrdat~onor ternl~nnlrnrsal~gnmenf arp t i l c l ( l ~l)y
~ ~the conneclofl. W I ~ ~ I I ~ ' I ~ !
a connector on a %?nsoror 111 !tie ivbrrnr: tinvness niny tcrnporarllv cnncct an open r:rctrlt,
bu: ou1d17ed
or loosr connections niav cause
Inrermlttcnt problems.
8 DTC
W117 ECT Srnsor Clrcurt Low
Vnllage
DTC W118 ECT Scnsor Clrc~ritHlph
Voltage
DTC PO175 Ercessrve T ~ m rto Closed
Loop
DTC P I 1 1 4 ECT Srnsor Crrcurt
lnterrnlltcnt Loiv VoltaRe
DTC P I 1 1 5 ECT Scnsor C~rcuil
lntcrm~ttentHlfp Voltage
Ilrt,rhr!
~ l r r~ernpr.r,~t~~rt.
(I,AT) scnsor FP:
12160244
Thc Intah(' htr Temwrat~lre(!AT) sensor
15
nteqrated w ~ t hthe MAT qrnror. The IAT iq n
themil~torwti~chchanrr? value haserl on the
tcrnpcrrll~lrcof The alr r.rilc:rlrlgl h e erq:rlc. Low
temprrnture producr.; a hgh rthastancc
(100.OQO ohms at -3Q F)..A h~y,hrrrrlornture
c a ~ ~low
~ rseslstnncr
s
170 ohn% ill 7 t j G FJ.
Tlie PCM supl,lras a 5.0 vol! s~~:oalto the
wiqor througl~a rcslslor 111 1 1 1 ~PC61 and
r~ie~si!rcs
thc voltaf!r. TI lc voltage rv~llI)e I11gh
,:?n
the pncornlnf: t'lrr 1s cold, and low v~hen
* ' P 31' 15hot. T l i r I
CCM c;rlci~latcstbe ~riconixr 7yrl!nfbr.
)!I lrr hy !npasLjrlnp, t h e [AT volt
-1Y
:.
T t i ~!AT ~ri'5r3r ~ ~ ~ . r l c 7IS1 tised to a d ) i i ~ I
~ n , t r : ~I!mlnq L ~ c ~ ~ r ( 1to8 n
Incmiln{:
g
air d e n
slrv ThP sc,arl rnnl dlsnlavs tcm!,erntklrt of the
;11r t~nlrr~nl!
thr enE1r.e. %,;htc11 s h o ~ ~ lrc;jrl
d
{-II>SP 1 ~ 3a r t i ~ ~ alr
n t ~ n l p ~ r a ~i-hm
~ r r ct ! i ~
~ r ~ v ~15r colil.
l r ~ The Iemlleratrsrr sliot,lrl rlsr ns
~:r~~ir'rllnnrl
tpniperature IncrPrlS+'S I' thi' v.1I r l r t~as
1101I ~ e u nrun for scvrr,ll hotrrs, tile
'(1 S ~ ~ ) S C Itemperature
T
and t2rijrlnr cwlanf
'~.~'~:)rrnt~lre
~tioirldrend rlosp t t l I \ , I C ~ othrr.
PCM dctccts
scnqnr c ~ r c t ~ i t :
Tr-r,> fnfln,wng DTCq srt tf thr
i?-:,I
(L
1
I
nc'lor In T
~ IAT
C
DTC W112 IAT Srnqor C~rctrttLow
iro?a:?e
DTC PO113 IAT Srnxor C~tcir~t
Hi~h
V0lW~tc.
DTC Pllll IAT Scnsor CKT
Intcrni~ltrritI-l~qhVoltaq~
DTC, P I 1 1 7 IAT Sensor C K r
lrit*,r~lilttr\tltLow Voltaq~!
4
I
MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR
Rear view of engine:
1. Manvfold Absolute Pressure (MAP) Sensor
2 . Camshaft Posrt~on(CMP)Sensor
3. Oil Pressure Sensor
4. Connector to Knack Sensor (US)
When thr PCM d c t ~ c ! 5;l rnalfl~ncl~on
In
I! S r f s thr fot~a;*!~!lrlg
DTCs:
DTC PO107 MAP Sran<orC8rcutrLev:
Voltap.c
the MAP sensnr
DTC 1-'03 OR MAP Scnsor C~rcurrHigh
VOIT~I!(~
HEATED OXYGEN SENSORS (H.025)
-r.
1. C111
2.
3.
3,
5.
4
c
w
-
I
The PCM ?rt?
n DTC tu.+n Vie PC\+ drltlct5
an HOPS slPrinI clrcurl t r ~ r l l1s loo Iu1.v wr fw)
li~f:h, orkvttcri Zhc PCM detects nn !I025 ,jct~v
~ty.Tlir PCM also has the a l ~ ~ ' , ltn
\ : dr'rc'
H02S rr5wonse, swrtchrn,q. lr.~r~,,~!~oIl
!Irnr.
and lncorrrct raho voltagr: ~?rol~lrni.;.
C
'l T,4
5lnres 3 DTC that ~rlrl~ciltrs
cl~fr,lrlt=rl I-I035
~ ~ r r l ~ r n r n n~i
na? H02S rr:sy)orlo3r: s ~ ~ l c t ~ ~ u : , .
trdvisrtion t?n?P.or rdll0 prnl~tem1 5clc~trcf~cl.
THROTTLE POSITION (TP) SENSOR
nressure sensor
C amshatt PI~sitiori[CNI P ) sensor
C,round lug 1to svl~ndcrhead
hlanrfo!d Ahsorurc Pressure (MA1P) sensor
Knock s e n w r ( H S l
hl hrrtfrllrf :kt?wlc!te Pressure [MAP)
vin ~ ~ ) t t .a:( ! rI>e rear of the tntnkr
~i>,~n!tolrl.
T l l r hl~7P scrsnr nieasl~rt?t l ~ c
~ l r v ~ r l r~:tinrl;:r<
rr
~nsbtle?he ,rtakc rn,~r~~folcl.
., I,tr.41 1s ,111 ~rlrl~car~oii
of The enr1nP Ihc3rland
TI-ir
$1lt1<0~ ltl
Ti>[- IYIAP tins a 5.0 voll rcfrrranc:!?, 3
;.,: I! r ! , atl(l a s~er~al
crrcult. 1t1r: MAP sensor
' , r:!!rl.;
a rlia!lt-~ragmb~fhrclichnnf,cs tllr: rp=;1,7re !)r7se~:
or1 press!ITP. WI~CIII~IC n w 11+rI ,,; i)rr.<~.!:re'5!m:'rh1?)1Y~CIIIII~?),
th? S C ~ S O I
,QI::>I!T
>:o!taqc :s lam<-i.
Wtlcn t l ~ cmanifold
:Ir8fssuri: 15 , ' l p " 1 I1191 V ~ ~ C I IthC
: I ~~~ C ~
~ l l l l l j ~!~nltAPf
rl
1 5t?rP'i
1. Oxygen sensor left bank (Batik 1)
2. Heated Onyeen Sensor (H02S) PN
253 12184
J
; I A C I valve
T i e Hearrhd Oryn.r.r~Snrisors arc ~notrntetl A . brnurrr! lux: to powrr steering bracket
In 'the ~ x h ; t ~ r.;v'.rt,rn
\l
r4;hrre they car1 monitor
the oxyr.rbn cnrl:rbnt o' the exhaust 1315
T t ~ Ttlrnnlc
r
P o s ~ ~ mITPI
n svl7or lr, n poS s2reanl.
O ~
E t i c x oxvr<rri prrSPrlt rn th? ~ h h n ~ ~tcntlornrtrr
\l
T1le TP scnsor ls crrrlnrartc>t!10
gas rrnctq rv~tltrtw srr,sor To ~IIOFIIICSI <E ~01t t t l ( l lllronle shaft o? the lofl 51dvof ,t~r
t"~ntt1~
ace or ltpr ~ tTtrr
.
ouvRcn C C ~ ~ O\ail?<
S ~ t l w volvt)odv. The TP sensor ha5 n 5.0volr r r f r ~ r . r c r .
Tlic VAP IS ~rl~rrsc-lv
prn:,nn~or~alto what
a!:p o v ~ r,I rnnpp frorr~ay)~~mx~matrlr,
Inn0 :! LT~ILITI~, a11rI8 sqrial CIICIII~.
nieasijrcrl 011 , I v . Irtrm
~
ynuqr.. The P A P
ITIV rvhcrr thr?rxtlntlst 1s rlcli dot-m tn at3n11l I 0
sensor IS usrd fnr t t ~ clollov: 11:
T t i r PCM c;~I(:LII;~!Ps
11 i r ~ l t l rf30$1t10ri
mV ivhcri Ihc exhailst I S leati.
mn'lllor n: thr voft;lr:r7 nn llir s~l'nnlIrnr. Th?
Tlic healccl oxyfien serisor volt,~r:r=~ ~ 1 hr
1 1
TP smsor s~pnnlC'L;IIISPS ,3c, I lip Illrotllc valvp
w I,~ri~t~oti
tlriur~y,control
rllnn~rnrpclLVIIIIa scan fool. rnytdll r)rl17I Irl;~tr.rl
an?'? 15cha~c:cdIacrr~lr~r.~tor
prrlal rnnvecl).
OuvSrn Spr:wr (H02Si I r l C ~ I F I ~hr5;lrlr-rrollnr
Tbc TP yenwr \1r'-:,i1vr~lt;ll!(~17tnrv at R closed
tnr nr .rx'lnl!?t prpe.
Itlrolllr posrtlnrI ~,~l)fl!rt
0 t i volt at ~cllel.TIIF
Front View 01 Engine:
1. Idle Air Control (IAC) Motor
2. Throttle Pos~tlon(YP) Sensor
3. Gcncrntor
4. Throttlc Body
TP qrnqnr serial voltagr: Incrr,i';r? a? Ihr
rlirnlllc valve o ~ e n ssu rhat a1 Wlde Open
Tllro'CIlr3 (\WIT). \tic ok~tnthvolraFrr should be
ahove 4.0 volts. Wtwn t t h r PCM snnws a srgnnl voltage 111gRcr1Elnn thr norms1 opcmtwg
range of the sensor, ~t ~ s t s;1 DTC.
The PChl calrrll;ltc3? (ucl (letlvery basecl o~
:tlrot!!e valve nngr Irlrtvcr clrrnancl). A bmltrn
or I C ) O S ~ TP sc,rl\or 111ay cause internlrtivrlt
burs:s o! f11cl7ro.n ;In injt:clor. Th~smay csrl-ir
an ~ r n s t a l ~ l r I ~ c n u s rthc
! PCM dctrct\ t l l r
Hiroltle rs rnov17ir,.
front opposite thilt of the nomal f!arne front
prorllrced by tllr! spark pltig.. Thr r;lt.tl~r~~:
sout~cinor rrlnlly ; ~ s s o ~ ~ c l v:lth
f e d dclonation I<.
:he restl't nf two or more opposlriF! prrqsllrrs
~flarrbefrorlt?) rollld~ne,wrtli~nthe Cotnlxrstron
chanl!~rr.TL1o!lSh I~fihtclctonat~on1s 5orTiet ~ m r sconvberr~dnormal, heavy clrtor>at~on
car) rrsult In r:r-wne damage.
VEHICLE SPEED SENSOR (VSS)
Thr L S 1 Engine l i r f LIT? a Frlnch Sensor
IliS) systern to control spark knnrk. Tli~ssyston] 15 des~p~ied
to r r l , ~ r ds1>,7rktlnrrnp, I I to
~
20 lo rcd~lcespark knock 1.1 Idlecrlcyrlc. Th~r;
,~llnin(stlic cnglnc to uqc nirlxlri)urli snarh
artvancc to lrnprovr prrformance and f1.1oI 1.Vehicle Speed Sensor ('vasj
2 , Transmission connccror
economy.
1(!1(1
Thr l o l l o ~ ' i rDTCs
i ~ set when the PCM c l r tects a 1~7aIfun~r10n
\.:ith The TP srnsor crrclllts:
DTC PO121 TP Scnsor Clrctlnt
I ~ l ~ u f f i c ~Accntt~ ty
v~
m DTC P0122 TP Srnqor Clrctllt LOVJ
\'ollaqc
DTC P91?3 TP Srnqor C~rcultH~gh
Vcdta~e
DTC P I 1 2 1 TP SPIISO~ CKT
IrltCrrrlnItrv>lW l ~ l rVoItaQe
DTC P I 127 TP Sensor €KT
Int~rrn~ItPrlt
LOWVolk3ce
KNOCK SENSORS (KS)
Thc knock sr\nSnr =,vstFj.nl ts 11seC1to drlm1
engrne clPtonnr.nn. T l a ~knock seri?or(r;) prod t ~ c can I ~ im'~nflr~
C
wt~~ct,
IS sent to thf: PCM.
Thp PCM will rrt,jrrl 1l1c) spark tlmrne h;lmd (In
slgrial5 Iron1 thr KS wnwrs. T712anin! rot of AC
voltnqc ~-rrodlrccrlb y ltlc sensors I< rlc~trn~rnrcl
IIV t l i r ;InlDlfilt of Icrlocli. The PCM I1.r.r. n r l l ~ ~ s t s
t r ~ Ir:n~t
r !on Control (IC) to r r r l ~ l c rIt,(, spnrlt
knml;.
a n i ~ ~ l nof
: mecllanlcal v1llr;tl1oi7 rnolsci.
Wtlrri Itre erlprle opcr,ltr'\, t l l r PCM learns
111cnl,nlnlt:?lancl nraulnl!ltjl I r r c l ~ ~ a rof
i cthe
~
nnrse the enErnP prod~lwr,.When Ihc PCM
dctormbncs th,~tZ1iisfrtbcliherlcvrs less than or
greater than t f w cx~~r.nlr:damount, ~t SPZS a
Irnock W ~ S O TDTC.
Vehicle Speed Sensor (VSS)
Thp YSS sistcrlr IS 3 p~flsc*coirntcr :hat
~nforrnsl h c PCTSrhovi f w t lllr vrhcle IS mavr!lp. The VSS svslcr~~
for ! I ~ P L S 1 uscs an InCIIICII~F sensor ~ n m ~ n : r~n
( l tPe transn7rsslon
til~lshaff.As the ~ r l i ~ csprerl
lr
Increases, the
VS5 produces an hC vr)lt.l~eslgra' that a l w
Iocreases.
The scan lnol has several iposlfro~sfor dl
aqnoslnc ttlr KS clrcult:
m "Knnr:k Rrtarcf" lr~tlrcateslhe arnmlnr
of sn;irk the PCM 1s rel?inv~r?y.
lrnm t l
~
The VSS srqnnls Phc PCM that Thr v r t ~ ~ r ' r
std r l ~ o v ~ f i ~t tic
v v ttiroltlc
l~~~~
I$ rln~1'11
under dccclrr,Xlon. The PCM LISPS t1115 rn'ormallon l o I?rr?rP!?teflglrie str71111iy,nncl to
Instrrc proprr ourratlon of the Itftc Air Corltrol
tWC1 v;llvc* ancl r-li~tomnllctran?rn~sslnn.
IS
II
"Spark" lndrcates rhc amount of spark
ndvaf~ceh e ~ n commnndrtl
g
bv tl7c
PCM on the IC clrc11r2.
DTC PO325 l~tdlciltrsa!, Inrernal PCM
malfunclron rrl;~tr*rllo the KS svsfern.
D-tnnatrnli. 5nrilrt1rt1qs callrrl '-.n,lr \
knoch.- r? r ; ~ u q ~ rt)vl an uncnntrollcr[ cxll,w.
sron ('tlurnl rn thr corvhlrstron chnnil)rr. Th~s
irncontmllrd ~xplosloncould n r o r l ~ ~nc r[lamp
1
DTCs PO327 ;lrlrl PO332 ~ndtcatethat
a Knoclc ?aiisor or Knock sensor c~rctlll
rs m ; l l f ~ ~ n c t ~ n r ~Ifrltiesc
r l ~ . DTC? arc
S P ~ , r r f r r ?nap(~I~caI)lt
DTC fal>lc.
Tti~
PCM rrses Ttlc Carmhaft POSI~IO~I sensor 117 orclrr to ClCtCrrn~ilC
i v h r t h ~ ar cvll~iderIS
on TI f ~ r ~ norc rxhaust strolw. The rcluctor
wlwel 1ntc1rirpt5n rnng~:ne?lc
6dd produced by
n rnne1i~1
wltllln thc CLIP sensor as tl?@camshall mt;ltns. The CMP sensor's antema1 clrC I I I ~ ~ Vclcm:lr:cls t t i ~ sancl 11rocl4rces a s~mal
wt~rchttir! PCM reads. The PCM irses t h ~ s1 X
5ryjinl r r l comh~nationw ~ t htlie Crankshaft Posrtrnn ?ensor 24X slpnal In order to detertn~ne
ttrr crankstiaft pontlon and stroke.
CRANKSHAFT POSITION (CKP) SENSOR
Thr PCRl checks for a b s s of Camshaft Poq~tlonsrnsnr sqnal. Ttie PC44 also rnonltors
th*' CMP scnsnr srgnal clrcult for malfunc.
tlons. The f o l l o ~ ~ nDTCs
g
5et when t l ~ FCFA
t
rjptects a C R V scersr that r? 0111 of the normal aperatlng ranye:
3 . Hv.~tt*rl
0xyf:crl Scnsor ( H O Z S ) riEht hank
(H<lllh2)
2 . Ha>.~tc>tE
Oxygen Sensor (H02S) PN
25312184
3. Cri~nkshaftPosition (CKP) sensor
strokcs 1s nomial. ff r l i r crC3nksh;ll?slmxl
chances arP p.rrat~r flinn at1 r x p w t r c l
an'yrnt. Ihr PCF.4 IuJlrrprr1s 1h1s2% ;1 m15t1rr.
A DTC PO300 sr'tq whrn thr PCM d r l r c l s 3
1~115f1re.
Thc PCM nlqo mnn~tnrst h r FKP senc.or
slgnnl r:lrcult Inr rr~,llfur~ctror!~.
Thf%
PCM sets a
DlC PO335 or n DTC Pn33G i t h r n thr> CKP
spnqnr 1 5nrrf of thc rmrmnl o11~ml11iy,
ranpp,
DTC PO34 1Calnshafr Pos~t~on
Sensor
(CMPI C ~ r c ~Performance
~rl
DTC PO342 Camshaft Posrtlon Sensor
l C Z l P l Crrct~rtLOW' J ~ T a p r
DTC P0343 Camshaft Pos~lionSr:nsor
4ChlPI Clrcutt H:ch Vnttace
IDLE AIR CONTROL (IAC) VALVE
CAMSHAFT POStTlON (CMP) SENSOR
-
Reluctor for
sensor
Thr CrankshaR hsrtlon Sensor 15
rrlounted In 7.he rlalht rrar of :hr rnplnr: t ~ l ~ l n
I b ~ l i ~ nthe
d s:arler. Thc CKP scusor e.url*s r r l
conji~rlct~or~
w12h a 2dX rcr~:c'or rg;t~rrl
q*iot:ntc~lon the rear or ;he cr;lnb.sl~n~t.T h r
CKP sensor has B- Ilo;:ler st~pprv.a yrotlnd.
and 3 s!gric71 CIrCult.
,
CN
-$
"
TnlcCnti~sl,att Poslt~onsensor 1s mourted
Itlro~
ryti thr top of t J ~ P erlqrne block at the rear
of Ill(.v i h l ~ vcover and works In con1urJctton
I
ldFe Alr Control (IbC) Vatve:
1. Idle Alr Control Valve
2 . Throttle Blade
3. InC Vatve PintEe
w ~ t l,iI l K rplrrctor wtipel or' ?becamshaft.. The
r ~ l u c l o rt ~ ~ t i e I?
e l inq~detb~eenqne rrrrnetllntcelv In Iron! or the rear cam beanng. The
PCM prov~clrss 12 volt power s ~ p p r yro t h ~
The Irtk Air Control vntvr 1s n PGM.conCMP qrnsor 3s well as a p.round and a s~cnal Irolr~dslrppcr motor l n c a t ~ ro?
l t h t~l l r o t t l ~
CllClllt.
botlv. Ttlo s:rppcr mo!or clrlvrs ;I valw p ~ n i l ~
n.liich protr~~(!rac,
In10 a 1);1$<r7~r' that t~vpassrs
the throttlr p l a t r ~ T11~
.
I)C44 cornnlallrls the
IAC valve j>rntlr In cxt~rwfto rlrcrrnse t t l r ~cllc
speed. T t l r Ilvoaqr; nrr flow 1s rcrlwcrd and I~IP
r r l l ~ speed r i ? t . r r n v s as lt>r r)lnl:e apl)roncf~csr t q sr,ll. :An nr~llri-locntrr! 1~clt:.pen1
lhc thmlllr v,~lvr~s
fil-,n s ~ r p p l 1a~ 5cons!aril
arnolfnl of JIL>
,I.=\,
r ~ ~ r T. lJ w I7Cbdlrrfmct5 1'-+e
IAC vnlvr Ilfrlt ;?v:;l~ fro-11~ t seal
s
to Increase
tF1r rrllr spcrd. R11tr:lcttn:. 1h r v n l v ~~,~ntle
allows rliorr, a r 10 t)ypx'1 tliv throttEc plates.
Thr PCM WOVP5 1hc IAC valve rn swall
stc(~s,
cnll~rfCount?, T h r v can he measured
4 r n ~ q f ~ cntlsw
rr
3 rh..tnSr, 117 crClnk?thaR
s13rrrl. T ' j r PChl trmps ! t ~ II~!P~,I!
r
IJrtrwen
paclj pi.117~,7iicl C o ~ ~ i p aP
C
I,I!r ~ ~ nw: !lr3iC
1n:pn;nl iu~ltil!>ra prt>vvlrr? onP l o c!r!ern?cle
>:J~r:i1 ;lrl P X ~ P ~ ~ S I Vc( *l ~ ~ ! i ' : i:'I~ cmnkshatf
qpr'pr! hn.: n c r r ~ r r r d .11 cr5flntrl anlorlnt o'
: I p r !
1
0 I1*lv!eP11 +!rln?
i ~ n rrlr5y>l,rv,r(?ll
l
I I :I~ Scan tool, which plugs Inlo
tlir> Data I.~nlc Corlnrcror 113LC). The RCM catcr~l,ilr-s t t i r proprr IIO~IIIOI~
01 the IAC valve
rlrlnny. ~tllr>
tx~srlclon I~atbrryvolts@, coorant
tr.mpr:rtlti~rr, crjelrie fond, and rngl"le RPM. If
tile liPM droy)s t ~ l o w?prc~ficattonand the
tl~rottlrvnlvr IS closcc!. !lit PCM senses a
near stall cond~t~on
and calculates a new
valve posltlon ~norder to prment stalllnq.
Tlic Ipnltlon svstem consfsts of the follow~ n cornl3011en~slctrc!i~ts:
g
Thc! Ign~tionControl ut~ltzcsthr! follow~ngIn
control soar[<tlrnlng functions:
Engrn~:~dlcspeed 15a f~lnctionof total alr
flow Into the engine. Idle spcecl 1s I ~ a s r ron
l
IAC valve p~ntlr:poslliori t crankcnsc vent~ia.
tlon valw flow -I- t h r o t t i ~ilalvc openlng I bypass c~r111ce
alr flow I- cal~t~ratecl
vacuum loss
ttiror~marcessorles.
24X signal
Controlled Idle speed IS programmed Into
the PCM. w h ~ c hdeterm~nestlie correct IAC
valve prntle posltlon to n~alrlta~n
the dcs~rcd
~d[c
speed for a?1cnglne operntlng cond~tbuiis
and loads.
Ignlt~onControF (IC) clrcuots - The
PCM uscs Ihese c~rcurtsto trlfscr the
IpnlLlon co~l'm~odules.
Tlie PC44 uses
the cran[cstialf reference acvaF :o
calculate the amouct ot spark advance
needed.
The mlnlmum ~ d l calr rate rs 5et at the factory with a stop screw. Thls scltlng a l l o ~ l 5
enough alr flow by the throttle valves lo carrsc
the 1AC valve pfntle to be posltroned a callbrated ntr~nhcrof steps (counlql, from the
seat, dur~np,controlled idle operation. If the
IAC valve 15 discnnnccted and reconnected
mIfi the engfne runnlnp,. the Idle speed ma!,
I)e wronp,. If t hfsoccurs, reset the IAC valve 1)v
dcpresyrng t hc accelerator pedal s l ~ ~ h t lstart
y,
and run thc cng~rlefor five seconds, then turn
the tgn~tionOFT for ten seconds.
- The 24X crankshaft
posltlon scnsor scnds a s~gnalto the
PCM. Thr- PCM ~ l s e stlils slf.:nal to
determr~iecranl:sliall p0~111or7.
Tlie
PChl dlsu r ~ t l l ~ r ethis
s signal to ulv.er
the fk~el1n(ec2or?.
Ign~trorico~ls!r-notlules
Eght I g n ~ t ~ oControl
n
rlC) clrcutts
Carnshafl P o s ~ l ~ o(CMP)
n
sensor
W
W Carnslmfl reluctor ivlieel
R ~ l a t e dconncctrng wlres
Thc lgnltlon coils sccoridaryvoltagr! outp~lt
capab~llt~es
are very f71gti
mure than
40.000 volts. Avo~rlbody contact wrtt~Igrltrlori
h l ~ voltap,e
h
secondarv components wherr t l ~ e
enslne 1s runnlnq, or personal Inluq may
Powertra~nControl Module (PCM)
r~s~ht.
CranksPat Pasltlon (CKP) sensor
24X CranhsiiaTt rel~rclarvtlleel
1
There are Important consjclerat~nns to
porn1 out w h e r senflclna 1he lffnrtlon syslern.
Tile followtng lnfornwt~oniv11I hell, the technlclan In servlclng Ithe Ignltlon system:
The 24X crankshaft posltiori sensnr ~s the
most crrtlcal part of tqe ip,nlTlon sy~lern.If tlie
Note: Do not attelnpt to adjust cllglne ~(lle
S ~ P P C E by turnrnp, the screw on t l ? ~rlcht (passenger) srde of thc throtlle body. Turn~ng1111s
screw can permanently darnace the IAC.
sensor 1s clamaq~rlso that p ~ ~ l s are
e s not penerated, the eny:rne v21llriot stan.
Crankshaft pos~
t lor1 serisor cte;lrance IS
v ~ r ylrnportant. The scnsor rn41sr not contact
t t i ~rutiltlrir!
., Intcrruptcr rlnc a l a n v tlmc, or
sensor damage !ew!ll result. if the rnterrrrptcr
ring 1s hent, the lnterrilpter r~rlgI~tatler;w~lldestrov the sensor.
ELECTRONlC IGNlTlON SYSTEM
OVERVIEW
Ip.n~tlontrmrng 1s not ad~i~stable.
Tliere are
no tamin? marks on Ihr: cranlrshafl balancer or
brn~ng
clia~ticover.
T ~ LPS 1 E~igtneKit has
ir~dw~dual
electroni-
cally contm{lrd coil modules for each
cylinder.
Tlie Ignltlon feed clrcurts are fusccl separately for each bank of thc cnglne. The two
fi~sesalso supply t l Inlcctors
~
for that bank of
the englrie. Each co~l/rnodureIS semc~clWIIamtely.
To propcrly control lgnlt~ontlm!ng, the PCM
The hS1 Eng~neK ~ t ' selectrorl~c ~gnlt~on r ~ l ~ on
c sr t ~ efollowing ~nforrnatlon:
system controls combust~ont ~ yprov~cl~ng
a
Ene,lne
load (man~folclI?ressurr:or
spark lo lgn~tet h e compressed afrlfuel mixvacuum)
ture at the correct Ilrne. The PCM controls thtz
spark advancc of the ~gnltronsvstem to proAZrnosphcr~c(baromctr~clpressure
v~deoptlmurn englne performance and fuel
economy.
EnE~neten?pemture
Intake arr temperatrlrp
Tlie LS1 Englne K I electrontc
~
ignrrlon systen1 does no1 usc a conventlnnal d~strll~utor
Crarilcshaft posltlon
and 6011: r a t h ~ rthe
, Ignition sysZcn~has an InEng~riespeetl IRPRZl
clrv~dualco~l/motl~fte
for each cvl~ncler.T l i ~ r e
Thc Ignrl~onControl (IC) system con5lsts of
are efght Ignltton Control (ICI crrcufts, onc pcf
rhc fottow~ngcorn[?or?ent%:
cylrnclcr, that connect the PCM and ttie IEnl
t ~ o ncort'rnoclules. Each lgnltlon co~I!mocl~~le
I c n ~ t ~ oco~ll~nodulcs
n
has a power feed, a chassfs ground clrclrl!,
24X cranlcshaft posttlon sensor
and a reference low clrcc~lt.The PCM causes a
Powertra~r~
Cclntrnl Mnrlvrle IPCM)
spark ro occur by p,rot~nd!ngIhc IC c1rcu12.
whrch s~gnalsthe l g n ~ t ~ ornocfule
n
to trt@er
All conncct~ngwrrm
the Ignrlron cod and flrc the spark plug. Scqucncjng and tlmlng are controlled ly t h e
PCM. The PCM sets a DTC when the IC clrcult
IS out of range.
Re careft11not to danrage t h e secofldary
Ignrtlon wlres or boots wfien servrcing the Ip,nltron svstcrn. Rotarc each hoot to cl~slody,~
~t
from the plug or c o ~ ltower hefore p1~lI1n6
~t
fromi e~thera spark plug or It3e 1c.nIllo11cod
Never plerce a sccondrry Ijinltlori wre or boot
for any testbnp, purposes. Future problems arc
:,uarar?teed ~f pfr7polnts 01 test lights dre
t-lushetl through thc ~ ~ ~ s u l nfor
t~o
test~ng.
n
The PCM 1s respons~hlefor nna~nta~ri~ny.
proper spark and fliel Inject~nntlmlng for all
operating cond~tions.Thc PCM rnonltors Input
srgnnals from the ~OIIOWIIIP, colnpone!its 111calcr~latlngIEn~t!onContrnl fIC) spark tlrnrnp,:
Eng~neCoolant Te~rlpernture(ECTI
sensor
Intake Air Temperature (IATI sensor
Mass A!r Row WAF) sensor
Throttle Poat~on(TP) serlsor
Vehlcte Speed Sensor (VSS)
An Ignntlon control crrctlbt t l ~ a tIS open or
g r o t ~ n d ~\.v~ll
r l set an Ign~troncontrol clrcurt
DTC. If a fault occtirs In tE1e IC ot~tptrtclrcutt
when the englne IS runnlng, t h c cnglnc wrll r x perlence a m ~ d ~ r DTCs
e.
P O 3 5 1 PO358 WIN
set when a matfunctlon IS dctected wltfi an I?,nltron Control clrcult. When an lgnit~oncontrol
l
t h e Injector for
DTC sets, the PCM w ~ ldisabfr?
the appropr~rttccylinder.
Tlr. PChI Irses ~nformatlonfrom the enTnr
AIR CONDlTlONlNG COMPRESSOR
7
1
I i ~ g hRPM
-
w Cold enqlnc
TROLmLESHoo7-lNG
1. Furl pressirrc sho~rl(lIN? h e b ~ e e n53
,?rlr!Ti3 11s1at ~dle.
more advancr
-
General:
2. C h r r k - ~ r . g ! nI~I ~ ~? hI o ~ ~I)r
l r l on (arnher
color) wtltan Irf71flnn1s turntxcl or) and s h o ~ ~ l d
be off iv'~rr7!*\Pcnqne 15 runrlrny,.
more advance
Engine mll not crank:
CI-eclc for [~nltcryvoltage (12 mils rmnlnwm) at the fc>llowlnt: Ioc;~?lotis:
1
I
1.#C pressure sensor (conncct to PN
22601618)
2. A C r.l\~tchconnection
1. Starter swltch
2. Startcr tcm71r1;ll
Englne cranks but will not start:
If Itic r r l o 8 r l rCranks but will nnt rkln nr lrnr-icrl1a~e4~
\!,jII$. 1l.c "Engrnc Crankr R,JI ~VI!'
Fd(l' RLEI~''
( I : t ~ c ~t r l b~l ~~[nust
t ~ ~I)(- I . S ~ T to
~
(YrrPrmrne I ( t t m c b f i ~ l ~15
~ IIr rt t 7 ~!PI)I~IOO\
,;vq'
fir IPP ~ H C I qyqtrni.
I.No lor low\ fuel prcssurra.C l i ~ c hthe forIowrnP,:
---
Thcrt, may he alr In t h f~~ r r Irrlcj
l
or file1
1311
~ ~ h w~!l
~ creoulrc
h
R mlfi~ltr!In
(3~1rp.e.
COI~~I~IIC
10 crank t l ~ f rnrlnr!
:
or
open thr f t r r a l lrnc a1 tlie fuel rd'11Id i d
c h ~ c kfor fr1c4110~.
FUEL PUMP CONTROL CIRCUIT
Wlirn the ~gnlt~ori
n:.ifc" 1 5 tirmed lo thr
ON Iltlslllon. !Qc PCF.1 nc1,lvntrs the rn.tanlc
f.1~1Ililinl? Tlie fuel p1lrn;r rornillns on ar; Innq
FIS t l i r . PCkI rece:ves rcfrrt:rlcra pulses fronr
t tip elcctrn!v.c ~qnltlonsystcm. If I ~ ~arc
PK
nuP
:c4crc.'rt~ 1)rll?17s,the PChl ttlrrX=. Ihr) fuel
crlr'in o+f aftor Irlss than one SPC()I~(!
The PChil rnritmls the 'uel numl, r ~ l n yh y
ayipiyhng R -I to !hr control clrccrlt v1;l nrl ~ n t r r
1 7 ~s~%lltcCI
1
c i l l l ~ dn c!rrvrbr. The pnrnaw I,ilr[,o';r
of t h dr~ver
~
rS 10 s r ~ l ~ p;
llyvoltaq~In tilt 711rl
[ 7 ( ,17313 rP"3k'.
Tljc rfrrwr has a fa~llt~II* i - ~ t ~ lt7c
~ c hPCM
vnclnr!urs. When t h c PCbZ ctvrltnands thc frrel
ntrrnp ON, flip voltaqe of the rnntrol crrcult
sh3?1lrlIF h ~ q (near
l~
ballcr) vnltaqc). Whcn
[ r e PCM conirnsnflq rhc control rlrrult tn t h e
fuel pllnrlm OFT, the vo!T,3qc st10~1lc1Ilr: low
(near ~ p r n
14c)4?5). Tl)e PCM scts
DTC wfwn ~t
rb~fpctst",e 'rlrl mlmp control clrcI!rt IS
<h~?.?c!!O S r ~ t ~ n l d .
FAN CONTROL RELAY CIRCUIT
ionlt~onvoltaqe IS suppl~crlcl~rcct[yto thr
coo~lrlp,fan relav coil Tlir: PChl cor:trofs thrrel;!v IJVp>ro~rndrngth~
control crrcu~tviaan Int ~ ! n oLl . M ~ I ~called
C~
a drlvcr. Thc prrmay func.
tmnnr l l l h r rlrri~prIS to suy~plyt l i ~glound for
f h r Cor~'r~llrt!
clrculr. The cnclnr coo:~zlg!an
s ' r , r n ~ r l nri when coolaril trrv~lera!trre
~ P F I C i~l p
S ~~r~~~(~tnat~lv
*,n
r
Eacn dmPr h,l< a fault hnc \*il~!cht l r ~PCM
ri\onltnrs. n't~l:Itir: PCX4 commands ;r cornpnnrnt ON, thc oot!;lfip or the c o r l l r ~ Ctrc~lr!
l
stlntlld he lor%!4nrx ; r w volts). When the
PCP,? c o r i ~ ~ i a r dt lsl r ~r:rlntrnl c ~ r c utn
~ la c o u ~
pnnrnr OFF. The voltar~cof Tile clrculf should
l - ~ r r t i near ballcry. !~olt;trlv).If Ihe f ~ t l ' dct
' P C T I ~clrcljlt
~ ~
sense5 ;I ~8r)1!.7qr o:lier than
?:h,.tt I h r PCM expects, a DTC 1.1 5et.
The fclel plrrnp rrlnv w ~ lnot
l stav
~!~i.re)zecl
I 1nlrs5 G ~ IrCn q n e :s
rrankrng or rtlnnllic. Tn t w t the fuel
pcrr~~y),
[lie relay c;lr? l ~ l)ve?assed
r
as
fr,llocv5: Rer?io\c t h c cnri n ~ cort fro~n
r h fuc.1
~ wumo relac. C o r ~ r ~ (a~l~lrnper
tt
! v w from ihp orr7rgl) 70 Illr TC'CI
Tluq 1~111
pvi4:Pr l t ~ e
f11v1pk:rn[>
AfC Compressor Clutch Control
2. Chrck-(,r~flrr~~
I~y,tlt5110111d IF on rvhcrl
~~nn~
r? o
onn W~IPII rl-lclne 's not runnrw:. If
nnt, check the folkobv~nr,:
Grounrl wlrrs on I ~ P
hack of !tie r~j{h!
sldtt cvllnd~rh ~ c ra?tfst
f
he ~ ~ q t l t .
C h ~ c kfor baF!?rv irolti)~~!
on both
~ t ~ of
l m
tqr
tron s ~ ~ i ~ t c h .
rj
Thc Tecli 2 scan 1001 s l i ~ i ~ shoiv
!d
an
1o;irrrun voltaye of a l Ip;lst 12 vo!'s.
~n~glm.h~m
Both PCM harness connectors must
~IP tttht a n d In coed condl!lori.
a ww u
UCI~I.P~CN 1%
%i.r~rqPull T O SC4l ( A L M l
.-
Clicck rl ~ i i nallsrnc~~on
v
c r 3 l l r ~i l r r sct
In t h r PCkl.
I
.
RFD'RL*
2.'.
n, I,
P""
I
Ul"
- -
AIC Refrigerant Pressure Sensor
ALTERNATOR
Btlrned oirt r h r c h engtne l~ght,(Ths 1s
LEU and 1s not r a r ~ l vreplacccl, hut
LCDs do not frill SI, r , ~ v l vas lj:~II)s(101.
an
3 . Check for spark at tht. spark r,lugs
4. Ck~ccklryectors for a y n a l
I. Rmmw earl tnlpctor connrctor and uut
n 6 to 17 volf tcst I ~ ~ rlcrnqy
lit
the
corinrr-rrjr (4 6-volt rest l~glltw~rlslioir
up hr1lpr Irb tile clayl~eht).
m Crank n h r t:rll:lne. Tlle hp,bt sl>ould
ktlnk.
Engine starts but runs rough:
L. If check-enqnt. r l f ' i t r5 on, cl~cclrlllr
midf~~rict~
cotlcs
o n t3.1th< I TccIi 2 scan tool.
3. Furl pressure nulst l)r nt Icast 53 PSI.
1. Engine Coolant Tcm1)erature (ECT) v n s o r
2 . Alternator (flat 4-plrll
3. Alternator l~lF:
3 . Rnc! scncor. Not? that some sensor
pr~l~lem.,fill! not necP?qanli* Ilrrn on the
c!7eck-rrlP)nP I I F . [ ~ ~ .
SPECIFICATIONS
i
I
INOUCTlOFl SYSTEM
One-prece cornposltc
Man fvld
~hco%? 9
o~!~
35.0 mm hare d12.
SPECIFICATIONS cant.
Crankshaft Damper Bolt
5.
itnrl thc-n :urr, thr:
'DIAGNOSTICTROUBLE CODES
DTC
DESCRIPTION
POI01
I.lass 4rr Tlovc
PO102
Mass R ' r Flow (MAF1 S e n ~ n Circuit
r
Lo\-! Frecrr.rl-ncl:
PO103
P.+.lnss 41rFlow (hfAFl S ~ n s c l C~rct~ht
r
H!$ Frrrru~ncv
,%+t"l)
SysZerrr krformancc
Absolutr Pressure (MAPI Ssnmr C ~ r c uCog
~l
t4nnrfold Ahsolcr!e P r ~ q s u r c:YAP) Srnsor C~rcu~t
Sllpf?
PO117
Enmne Coolant Temp~rn!ure IECT] Scnsor Cow Volta~c
PO118
E q n e Coolant T w i f ~ c r a t IECTI
~ ~ r ~S Q ~ I SHI*
O ~ Voltaj:~
PO121 TP Sensor Circuit Insufbc~entAct~v~tv
PO123
TP Senwr Clrcu~tHI+ Vo'tafir
DIAGNOSTIC TROUBLE CODES cont.
PO341 CA"D C rcu t Perforrna~ce
PO342
CU.:p Spnsor Clrcult t o w Voltapc
PO343
C:iP
P I 1 2 1 TP Sensor CKT Inrrrr-~rrrrnrHlqti Voltaqe
PI122
I-l~ri!rrlO ~ v c c nSensor IHOPS) TFIl'~lt'0rlT nit= Ratio
PO351 lqn~tlonControl + i Z C ~ r c u ~ t
R?nlr 1 S r n w r 1
Control 793 F~rc!~sl
1 ~ 0 3 5 2 Iyn~t~on
PO354
PO355
PO356
P1153
Inn :on Co-'rol * 4 Clrcc111
1.1
Irr
I! r ~ r .Cqrtrol
I
I
Heated Oxyprr~Stnsnr rH02SI frsuYlclrnt S , ~ / ~ t ~ h l n ~
Ban12 2 Srhnd,or 1
Heated O Y : . ~ S~nqor
P~
tH02SI Translt~onT I ~ Rat
P ~n
Bank 2 Srhr ;ov l
#5 Clrcult
tor: Control # 6 Clrcult
TP S ~ n s o CKT
r
Fr:crnl~ttr~ritLr~v!VO)~;~P,C
I-lr;trrrq O % v g ~Sn~ n q o (H02SI
r
I r i ~ i ~ l f ~S!vltch~ng
rb~~I
~ , 3 , 7 1 <I S~n.;nr J
Sensor C ~ r c i ~High
l t Voltace
PO353 IQnl!~onControl # 3 Cnrc.r~t
1
$1258
Enpne Cooliirlt O ~ c Tcrnprrnture
r
Fuel D~?al,ied
Pi336 CKP Sk~tem\larlat~onYat Lrarned
PI380 E B f F C M DTC Detected PO480
Far1 Control Rr-lay 1Coqtrof C~rcult
PO500
VSS C rclrit
PO506
Idle Su~ec:Lo?:.
(hl TI
R u ~ ~R
r lni - 4 Data U v u u l ~ l e
PI626
Thr't Drtcrrenr S\lstev Fuel CriaiW CI~CIII:
PI635
5 Volt Rrfrrcnce + 1 C r c ~ i t
PI639 5
Volt R r f r r r n r r 3 2 C'rcu~t
I
I
PCM PIN-OUTS
PCM PIN-OUTS cant.
PCM PIN-OUTS cent.
Blue 18
Senal Data (Class 21
-
58
Lt
59
BrnWht 18
2130
Bank 2 ICM
59
60
Brown 18
2129
Bank 1 ICM
60
61
Red
1226
Black 16
PCM Ground
451G
Transm~sstonRanee
PCM Batteiy feed
62
Crank Sensor
-
NC
63
Black 20
407
Refngerant
Pressure Sensor
Ground
63
Gray 20
416
Gray 20
474
64
64
65
65
66
66
67
67
68
68
LI Blue 20
1876
69
69
Dk Blue 20
496
70
70
P~nkiBlk20
632
MAP
A;C Refngerant
Pressure Sensor
Sgnal
I
71
Green
401
VSS S~gnalLow
71
PCM Ground
74
78
79
-
78
Knock Sensor
Rear
I
(KS)
Knock Sensor (KS)
Front
Carn Sensor
ENGINE CONTROL SCHEMATICS cont.
DATA LINK CONNECTOR (QLC)
ENGINE COfVIROL SCHEMATICS cant.
BANK 1 IGNITION COlUMODULES
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BANK 2 IGNITION COIIJMODULES
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ENGINE C Z O m O L SCHEMATICS cont.
ENGINE SPEED OUTPUT. CKP AND CMP SENSORS
ENGINE CONTROL SCHEMATICS cont.
INJECTOR C1RCUITS
ENGINE CPNTROL SCHEMATlGS cont.
INFORMATION SENSORS
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ENGINE CQNTRaL SCHEMATICS cant.
1AC
VSS SIGNAL
ENGINE CONTRUL SCHEMATICS cont.
ENGINE COOLING FAN
ENGINE CaNTROL SCHEMATICS cont.
CHARGING SYSTEM
ENGINE CONTROL SCHEMAmCS cont.
TRANSMlSSlON
ENGINE CONTROL SCHEMATICS cone.
TRANSMlSSlON
L