Fuel Injector (FP1) (RP1) Operation Inspection
WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- Start the engine and let it at idle.
- Inspect fuel injector control signal wave profile at the following PCM terminals. (See PCM
.)
- Terminal 2M (front rotor)
- Terminal 2J (rear rotor)
- If not as specified, inspect the following and repair or replace defective parts.
Front rotor:
- Open circuit in wiring between fuel injector (FP1) terminal A and main relay terminal C
- Open or short circuit in wiring between fuel injector (FP1) terminal B and PCM terminal 2M
- Open or short internal circuit or fuel injector (FP1)
Rear rotor:
- Open circuit in wiring between fuel injector (RP1) terminal A and main relay terminal C
- Open or short circuit in wiring between fuel injector (RP1) terminal B and PCM terminal 2J
- Open or short internal circuit of fuel injector (RP1)