Fuel Injector: Testing and Inspection

FUEL INJECTOR INSPECTION [13B-MSP]

Resistance Inspection

1. Disconnect the negative battery cable.

2. Remove the extension manifold. Intake-Air System Removal/Installation

3. Disconnect the fuel injector connector.

4. Measure the resistance between terminals A and B of the fuel injector.






- If not within the specification, replace the fuel injector. Service and Repair
- If as specified, carry out the "Circuit Open/Short Inspection".

Resistance
- Approx. 13.8 ohms [20 °C {68 °F}]

Circuit Open/Short Inspection

1. Disconnect the PCM connector. Service and Repair

2. Inspect the following wiring harnesses for open or short (continuity check).






Open circuit

- If there is no continuity, the circuit is open. Repair or replace the wiring harness.

- Fuel injector (FP) terminal B and PCM terminal 2BB
- Fuel injector (RP) terminal B and PCM terminal 2BD
- Fuel injector (FS) terminal B and PCM terminal 2BC
- Fuel injector (RS) terminal B and PCM terminal 2AZ
- Fuel injector (FP) terminal A and main relay terminal C
- Fuel injector (RP) terminal A and main relay terminal C
- Fuel injector (FS) terminal A and main relay terminal C
- Fuel injector (RS) terminal A and main relay terminal C

Short circuit

- If there is no continuity, the circuit is shorted. Repair or replace the wiring harness.

- Fuel injector (FP) terminal B and body GND
- Fuel injector (RP) terminal B and body GND
- Fuel injector (FS) terminal B and body GND
- Fuel injector (RS) terminal B and body GND