Toyota 4-Runner 1985 Repair Manual page 185

FI-16
EFI SYSTEM - Troubleshooting
J
OK
CONTINUED FROM PAGE FI-15
CHECK EFI ELECTRONIC CIRCUIT
1. Wiring connection
-
USING VOLT/OHMMETER
BAD
2. Power to ECU
(1) Fusible link
(2) Main relay
3. Air flow meter
4. Water thermo sensor
5. Air thermo sensor
6. Throttle position sensor
7. Injection signal
(1) Injector wiring
(2) Resistor
(3) ECU
8. Ox sensor