FUEL INJECTOR INSPECTION [MZR-CD (RF Turbo)]

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Resistance Inspection

Note

• Perform the following test only when directed.

1. Disconnect the negative battery cable.

2. Disconnect the fuel injector connectors.

3. Measure the resistance of the fuel injector using an ohmmeter.

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• If not as specified, replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

• If as specified, carry out the “Circuit Open/Short Inspection”.

Resistance (without circle mark)

Approx. 0.45 ohms

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Resistance (with circle mark)

Approx. 0.47 ohms

Circuit Open/Short Inspection

1. Disconnect the PCM connector.

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

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Open circuit

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

― No.1 cylinder fuel injector terminal B and PCM terminal 42.

― No.2 cylinder fuel injector terminal B and PCM terminal 21.

― No.3 cylinder fuel injector terminal B and PCM terminal 23.

― No.4 cylinder fuel injector terminal B and PCM terminal 40.

― No.1 cylinder fuel injector terminal A and PCM terminal 4.

― No.2 cylinder fuel injector terminal A and PCM terminal 4.

― No.3 cylinder fuel injector terminal A and PCM terminal 4.

― No.4 cylinder fuel injector terminal A and PCM terminal 4.

Short circuit

• If there is continuity, the circuit is short. Repair or replace the wiring harness.

― No.1 cylinder fuel injector terminal B and body ground.

― No.2 cylinder fuel injector terminal B and body ground.

― No.3 cylinder fuel injector terminal B and body ground.

― No.4 cylinder fuel injector terminal B and body ground.

― No.1 cylinder fuel injector terminal A and body ground.

― No.2 cylinder fuel injector terminal A and body ground.

― No.3 cylinder fuel injector terminal A and body ground.

― No.4 cylinder fuel injector terminal A and body ground.

― No.1 cylinder fuel injector terminal B and power supply.

― No.2 cylinder fuel injector terminal B and power supply.

― No.3 cylinder fuel injector terminal B and power supply.

― No.4 cylinder fuel injector terminal B and power supply.

― No.1 cylinder fuel injector terminal A and power supply.

― No.2 cylinder fuel injector terminal A and power supply.

― No.3 cylinder fuel injector terminal A and power supply.

― No.4 cylinder fuel injector terminal A and power supply.