Mazda RX8 - Fuel Injector Operation Inspection; Fuel Injector (FP1) (RP1) Operation Inspection

Fuel Injector Operation Inspection
Fuel injector (FP1) (RP1) operation inspection
1. Start the engine and let it at idle.
2. Inspect fuel injector control signal wave profile at the following PCM terminals.
(See PCM INSPECTION .)
• Terminal 2M (front rotor)
• Terminal 2J (rear rotor)
3. 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)
(w) RX8-Engine Troubleshooting
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