TROUBLESHOOTING
TROUBLESHOOTING HINTS
1 .
Engine trouble
Irt
uSUIIHy not caused by the EFI Iyltent
When troubleshooting. alWIIY,
flrsl
check lhe cooditkm
01
the other systems.
III
Electronic source
•
htlery
•
Fusible link.
•
Fuses
IbJ
Body ground
lei
Fuel .uPOly
•
Fuel leakage
•
F...eI
fillet
II
fuel pump
WI
Ignition SY5lem
II
Sj)IIit. plugs
•
High-tension COld.
•
Oillributor
II
Ignition coil
II
igniter
leI
Air induction .yst.m
II
Vacuum leaks
(t)
Emission control system
•
PCV system
II
EGR ''(Stem (wI Ai. flow meIer)
191 Diner,
II
Ignition
liming
•
Idle speed
II
Ite
.
2.
The
1nO$!
frequent
CItU5e
of
problem..
i. ,imply
I bad �
tacl in wiring
eonnec;IOI'$.
Alw.y. cneck Ihllli connec:bON
When inspeclir\il lhe COf\MClor, pay J)4Itticok. altllfllion
10
th. following po
i
ne
:
lal
Che<:k
10 _
that the tllltmlnal,
.f. 110\ bent.
\til
Check
to see
that the connector
is
pushed in
<:0lIl
pI,tt!y and locked.
leI
ChKk to
1M
Ih.l lher. i. no signal chlrlgl when
!hi
connector
I.
slightly e..pped or wiggled.
3.
Sulliciently troubleshOoting for Other
CIIU$8'5
befoft rep
lacing Ihe ECU, as the ECU is of high Qu_ily end
•• pen.
slv
•.
Содержание 4A-F
Страница 1: ...4A F 4A GE ENGINE REPAIR MANUAL May 1987...
Страница 102: ...FI 42 EFI SYSTEM Troubleshooting with VoitlOhmmeler 10 J Of 20 BAD Replace IIIje IOf BAD OK Try nothfl feU...
Страница 115: ...EFI SYSTEM _ Trou bleshoo ting wI t h Vol tlOh m mfltll f Cheekigni ler IS peg 1G 2JI r R i...
Страница 123: ...EFI SYSTEM Tro u b t l hooting wit h Volt Ohmmet e r ECU W te Temp SenIOr B 81 rr C t T H iT ct t E 2 iE2 FI 3 0 4 0 7 1...
Страница 126: ...FI S6 AW 1 SA Fusible 1 25B Battery Efl SYSTEM Fuel System EFI MDIn ReI y wI Air Flow Meterl w o Ail Flow Meled To ECU...
Страница 212: ...Had lOA GEl Cylinder II MECHANICAL ENGINE EAD CYLINDER H COMPONENTS A C 1i Slav g Mounl ing _ No 2 I COVIrI EM ill...
Страница 276: ...T r _ _ _ _ _ _ _ _ _ _ _ RegUI tor COMPONENTS f ICon d LUBRICATION SVSTEM O Cooler nd P 0 1 Cooler _ _ Oil Cooler III...