Symptom Checks

Perform the following:

• If vehicle DOES NOT stall in Park or Neutral, perform Key On Engine Off (KOEO) Self-Test. See step 1) of DIAGNOSTIC SUB-ROUTINES.
• If vehicle now stalls in Park or Neutral, perform KOEO Self-Test. See step 14) of DIAGNOSTIC SUB-ROUTINES. If continuous memory Diagnostic Trouble Code (11/111-10-11/111) was NOT displayed during KOEO Self-Test, perform appropriate CIRCUIT TEST in appropriate TESTS W/CODES article in the ENGINE PERFORMANCE section.
• Check ignition system. See IGNITION SYSTEMS in I - SYS/COMP TESTS article in the ENGINE PERFORMANCE section.
• Check idle speed. See IDLE SPEED in ADJUSTMENTS article in the ENGINE PERFORMANCE section.
• If engine stalls during parking maneuvers, check Power Steering Pressure (PSP) switch operation. See step 3) of CIRCUIT TEST FF in appropriate TESTS W/CODES article in the ENGINE PERFORMANCE section.
• If engine stalls during transmission engagement, check transmission solenoids. Go to CIRCUIT TEST TC in TESTS W/CODES article in the ENGINE PERFORMANCE section.
• If engine stalls with A/C on, go to step 30) of CIRCUIT TEST KM in appropriate TESTS W/CODES article in the ENGINE PERFORMANCE section.
• Check for restricted exhaust system.
• Check for restricted air intake duct.
• Check EGR system. See EMISSION SYSTEMS & SUB-SYSTEMS in appropriate I - SYS/COMP TESTS article in the ENGINE PERFORMANCE section.
• Check engine mechanical condition. Check compression, camshaft, valve train components, etc.
• Ensure transmission is functioning properly.