Fuel Injector (FS) (RS) 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.
- Connect the WDS or equivalent to the DLC-2.
- Start the engine and let it at idle.
- Access the RPM PID.
- Verify that the fuel injector control wave is not outputted at the following PCM terminal. (See PCM
.)
- Terminal 2G (front rotor)
- Terminal 2D (rear rotor)
- If the fuel injector control signal is outputted, inspect the following and repair or replace defective parts.
- MAF sensor
- TP sensor
- IAT sensor
- Inspect the fuel injector control signal wave profile at the following PCM terminals while the RPM PID is 5,000 RPM or over.
(See PCM
.)
- Terminal 2G (front rotor)
- Terminal 2D (rear rotor)
- If not as specified, inspect the following and repair or replace defective parts.
Front rotor:
- Open circuit in wiring between fuel injector (FS) terminal A and main relay terminal C
- Open or short circuit in wiring between fuel injector (FS) terminal B and PCM terminal 2G
- Open or short internal circuit of fuel injector (FS)
Rear rotor:
- Open circuit in wiring between fuel injector (RS) terminal A and main relay terminal C
- Open or short circuit in wiring between fuel injector (RS) terminal B and PCM terminal 2D
- Open or short internal circuit or fuel injector (RS)