Engine M E C Ha Nic A L - Toyota Celica Supra 1986 Service And Repair Manual

EM·2
ENGINE M ECHANICAL - Troubleahootlng
TROUBLESHOOTING
-
Poe•Jblee-.- Remedy
.._
Engine ....
m. ...
Cooling IVIItm ftulty Troubtetnoot cooling
sy1tem
C0-2
lnCOftOCl
IQnlllon dmlng
RtMt timing IG-10
Engine will not Cfanit Starting svtttm ftufty Trouble1hoot sterti09 system ST-2
or crankl t lowty
Engine will not
ttart/
Vac\lum leeks Rtptlr 11 neceaury
Herd to ttert
•
PCV hooeo
(crenkt
OK)
•
EGR vtlvt
•
lnttkt mtnltokS
•
Air
inttkt
che.m"r
•
Throttle
body
•
tSC vel ....
Pulling in eir between tir flow meter tnd Repeat 11 necessary Fl-58, 83
thronle
boctv
Ignition probaemt P.n'orm sperk test IG· 4
•
Ignition coli
•
tgnitor
•
Distributor
Ignition
wiring diaconn.cttd or bf~tn
lnii4)KI wiring
No fu .. auppty to injector Ttoubltthoot EFI ayttem Fl·8
•
No fu.l
In
tank
•
Fuel pum,p not wOfking
•
Fuet fiJttr ctoogod
I
•
fiHII ....
clofild
Of
leaking
EFI
system problolmt
R~ir
II
~ssary
tSC &yst~ problem Chock tSC avttem Fl-60
Spartt plugs feultv Inspect plugs
IG·5
Low compre~tlon Chock compression EM·8
Rough kUt, tttUt or
Vacuum Ieake
Ropelr 11 necessary
mluet
•
PCV holtl
•
EGR valve
•
lnt•kt m~nitold
•
Air lnta1<e ch.ember
•
Thtottlo
body
•
ISC valve
Pulling
in
efr between llr flow meter tnd F1· 58, 83
throttte body
Incorrect k:Ue apee<t Check ISC system F1·60
Incorrect Ignition tlmlno Aeltt timing
IG·lO
Ignition problems Perform spark test IG-4
•
Ignition coli lnapect coli
•
lg.nittt
•
Olattlbutor lnapect diatributor
Ignition wiring feuhy
Ina~
wiring
EFI
ayatM\ probtlma
Aep.eW •• necessary
Spark
plugo
foully lnti)ICt
plugs
Engine ovtm1111 Check cooling system
C0·2
Low comf)foaak>n Check eompreuion
EM· 8