Fuel Injector Inspection - Mazda RX-8 Manual

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FUEL INJECTOR INSPECTION

Fuel can ignite and cause serious injury or death, and damage. To prevent this, always make sure to

follow the warnings and cautions for each procedure when repairing or inspecting.

Fuel Injector Operation Inspection

Fuel injector (FP1, RP1) operation inspection

1. Warm up the engine and idle it.

2. Inspect the following PCM output wave pattern. (See PCM INSPECTION .)

PCM terminal 2M (FP1)

PCM terminal 2J (RP1)

3. If a normal condition of the PCM wave pattern cannot be verified, inspect the following and repair or

replace the malfunctioning part.

Fuel injector (FP1)

Short circuit of the wiring harness, connector between fuel injector (FP1) terminal A and main

relay terminal C

Short circuit of the wiring harness between PCM terminal 2M and fuel injector (FP1) terminal B

Short circuit of the fuel injector (FP1) internal circuit

Engine Specifications