MULTIPORT Fuel Injection (MFI) - Symptom Procedures
- Symptom Procedures
- Inspection procedure 1: Communication with ECM is not possible
- Inspection procedure 2: The malfunction indicator lamp (SERVICE ENGINE SOON or check engine lamp) does not illuminate right after the ignition switch is turned to the "ON" position
- Inspection procedure 3: The malfunction indicator lamp (SERVICE ENGINE SOON or check engine lamp) remains illuminated and never goes out
- Inspection procedure 4: Cranks, won't start
- Inspection procedure 5: Starts up and dies
- Inspection procedure 6: Hard starting
- Inspection procedure 7: Unstable idle (rough idle, hunting)
- Inspection procedure 8: Idle speed is high (improper idle speed)
- Inspection procedure 9: Idle speed is low (improper idle speed) < M/T >
- Inspection procedure 9: Idle speed is low (improper idle speed) < CVT >
- Inspection procedure 10: When the engine is cold, it stalls at idle (die out)
- Inspection procedure 11: When the engine is hot, it stalls at idle (die out)
- Inspection procedure 12: The engine stalls when accelerating (pass out)
- Inspection procedure 13: The engine stalls when decelerating
- Inspection procedure 14: Hesitation, sag, stumble, poor acceleration or surge
- Inspection procedure 15: Acceleration shock
- Inspection procedure 16: Knocking
- Inspection procedure 17: Dieseling (run-on)
- Inspection procedure 18: Too high CO and HC concentration when idling
- Inspection procedure 19: Transient, mass emission tailpipe test failure
- Inspection procedure 20: Purge flow test of the evaporative emission canister failure
- Inspection procedure 21: Pressure test of the evaporative system failure
- Inspection procedure 22: Power supply system and ignition switch-IG system
- Inspection procedure 23: Fuel pump system
- Inspection procedure 24: Ignition switch-ST system and starter relay system < M/T >
- Inspection procedure 25: Ignition switch-ST system and starter relay system < CVT >
- Inspection procedure 26: Ignition circuit system
- Inspection procedure 27: A/C system
- Inspection procedure 28: Engine oil pressure switch system