Fuel Injector Circuit

FUEL INJECTOR CIRCUIT

1. CHECK OPERATION OF EACH FUEL INJECTOR.
While cranking the engine, check that each fuel injector emits 'operating' sound. Use a sound scope or attach a screwdriver to injector for this check.




2. CHECK POWER SUPPLY TO FUEL INJECTOR.
1. Turn ignition switch to OFF.
2. Disconnect connector from each injector.
3. Turn ignition switch to ON.
4. Measure voltage between each fuel injector connector terminal and body.

Connector & terminal / Specified voltage:
#1 (E7) No.2 - Body / 10 V, min.
#2 (E17) No.2 - Body / 10 V, min.
#3 (E8) No.2 - Body / 10 V, min.
#4 (E18) No.2 - Body / l0 V, min.




3. CHECK EACH FUEL INJECTOR.
Measure resistance between fuel injector terminals

Terminals / Specified resistance:
No.1 - No.2 / 11 - 12 Ohm




4. CHECK HARNESS CONNECTOR BETWEEN ECM AND EACH FUEL INJECTOR.
1. Disconnect connector from ECM.
2. Measure resistance of harness connector between ECM and each fuel injector.

Connector & terminal / Specified resistance:
(E30) No.2 - (E7) No.1 / 10 Ohm, max.
(E30) No.1 - (E17) No.1 / 10 Ohm, max.
(E30) No.13 - (E8) No.1 / 10 Ohm, max.
(E30) No.12 - (E18) No.1 / 10 Ohm, max.