COMMENT ON TROUBLE SYMPTOM
- Engine stall on starting is possibly caused by misfire due to failed spark plug, improper air-fuel ratio at accelerator pedal depression or other faults.
PROBABLE CAUSE
- Failed ignition system
- Failed intake system
- Failed emission gas cleaning system
- Failed engine-A/T-ECU
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: Are the check results 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 EGR valve (stepper motor) itself.
- Check EGR valve (stepper motor) itself [Refer to GROUP 17 -
Emission
Control System -
Exhaust Gas Recirculation (EGR) System -
EGR Valve (Stepper
Motor) Check <4G69>
].
Q: Is the check result normal?
YES:
Go to Step 4 .NO: Replace EGR valve (stepper motor).