[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - TROUBLESHOOTING - SYMPTOM PROCEDURES - Inspection Procedure 14: The Feeling of Impact or Vibration when Decelerating | PRINT PAGE / INDEX / PRIOR / NEXT

Inspection Procedure 14: The Feeling of Impact or Vibration when Decelerating
COMMENT ON TROUBLE SYMPTOM Failure is possibly caused by insufficient air intake due to failed idle speed control system.
PROBABLE CAUSE Failed idle speed control system Throttle valve body fouled Failed engine-A/T-ECU
| DIAGNOSIS PROCEDURE
| STEP 1. MUT-II/III diagnosis code Q: Diagnosis code set? YES: Inspection chart for diagnosis code (Refer to ). NO: Go to Step 2 .
| STEP 2. MUT-II/III data list Refer to Data List Reference Table . Item 14: Throttle position sensor (sub) Item 77: Accelerator pedal position sensor (sub) Item 78: Accelerator pedal position sensor (main) Item 79: Throttle position sensor (main) Q: Is the check result normal? YES: Go to Step 3 . NO: Perform the diagnosis code classified check Procedure for the sensor that has shown an abnormal data value (Refer to Inspection Chart for Diagnosis Code ).
| STEP 3. Check throttle body (throttle valve) contamination. Q: Is the check result normal? YES: Replace engine-A/T-ECU. NO: Clean throttle body (throttle valve portion) (Refer to ).

[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - TROUBLESHOOTING - SYMPTOM PROCEDURES - Inspection Procedure 14: The Feeling of Impact or Vibration when Decelerating | PRINT PAGE / INDEX / PRIOR / NEXT

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