Toyota 4A-F, Руководство по ремонту

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OK
CONTINUED
FROM PAGE
fl- 1 7
CHECK COLD START INJECTOR
I .
Cold start injection
(See page fl-72)
BAD 2.
Cold start in�tor lime switch.
(SH
pege Fl-95)
OK
CHECK FUEL PRESSURE
, .
Fuel
pump
(SH
page FI-65)
ISee
p.ge
FI_67) BAD 2.
Fuel f�ter
3.
Fuel
pl"lIssure reguletor
ISee
pege
FI-7SI
CHECK INJECTORS
Injectors
Clogged
ISM plge
FI-77)
BAO
OK
CHECK EFI ELECTRONIC CIRCUIT
1.
Wiling connections
USING VOLT/OHMMETER
2.
Power
10
ECU
ISH page
FI_291
11) Fusible links
121
Fusn
13) EFt main fe
l
e v
3. Air flow meter (wI Air flow meier)
4. Vecuum senaor Iw/o Air Ilow meter)
5 .
Weter temp. sensor
6. Air
temp . sensor
7.
Throttle position sensor
8.
I
n
j
ec
tion
sig;nal circuit
111
In)ector wiring
121
Fuel
cut
RPM
ISee page fl-I08)
(3) EeU
9.
DKvgen 6ensor Iwl
TWe)
OK
(w/o AIR FLOW METER) Variable resistor
CHECK VARIABLE RESISTOR
ISee pege Ft-98)
SYMPTOM
-
MUfFLER EXPLOSION (AfTER fIRE)-Rich fuel Mixture-Misfire
CHECK DIAGNOSIS SYSTEM Diagnostic cOOels)
ISae page
FI-25
or
26)
Check lor output of diegnoslic code. Mal/unction
ISee page
fl-221
code(,)
Normal
CHECK IGNITION TIMING
Ignition liming
Adjust
1 .
Shan
lerminels T
end £1 of
the
Check
NO
ISee page EM-37)
conroeclor
2. Check
ignition l i ming .
S
t
i
n
A
r
d
:
10·
ITDC
@ ktle
I
OK CONTINUED ON PAGE H _ 1 9