Toyota 7M-GE Repair Manual page 136

EFI SYSTEM - Troubleshooting
FI-19
CONTINUED FROM PAGE Fl-18
._
t
CHECK COLD START INJECTOR
*
(See page FI-80)
BAD
1. Cold start injector
2. Cold start injector time switch
(See page FL11 5)
CHECK FUEL PRES$URE
(See page FL74)
BAD
c 1. Fuel pump (See page FI-73)
2. Fuel filter
.3. Fuel pressure regulator (See page FI-84)
I
I
1 c 4
/OK
I
CHECK INJECTORS
(See page FI-86)
8AD
* Injection condition
I OK
L
1
ZHECK EFI ELECTRONIC CIRCUIT
USING VOLT/OHMMETER
(See pages FL34, 57)
c
BAD
1. Wiring connection
2. Power to ECU
F;t;e links
(3) EFI main relay
3. Air flow meter
4. Water temp. sensor
5. Air temp. sensor
6. Throttle position sensor
7. Injection signal circuit
(1) injector wiring