Symptom Checks

Check the following items:

• Perform QUICK TEST and check for codes. See G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section. If fault codes are present, perform appropriate CIRCUIT TEST.
• Check power to MAP/BARO sensor. See step 3) of CIRCUIT TEST S in G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section.
• Check Idle Air Control (IAC). See step 1) of CIRCUIT TEST S in G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section.
• Check idle speed. See IDLE SPEED in ADJUSTMENTS article in the ENGINE PERFORMANCE Section.
• Check ignition system. See IGNITION SYSTEMS in I - EEC-IV SYS/COMP TESTS 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 G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section.
• If engine stalls during transmission engagement, check transmission solenoids. Go to CIRCUIT TEST TC in G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section.
• On Probe 2.0L M/T, if engine stalls because of low fast idle (cold engine), go to step 25) of CIRCUIT TEST KE in G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section. If engine has low idle or stalls with blower motor on, go to step 10) of CIRCUIT TEST FE. If engine has low idle or stalls with daytime running lights on, go to step 20) of CIRCUIT TEST FE. If engine has low idle or stalls with headlights on, go to step 30) of CIRCUIT TEST FE. If engine has low idle or stalls with rear window defroster on, go to step 40) of CIRCUIT TEST FE.
• Check for restricted exhaust system.
• Check for restricted air intake duct.
• Check EGR system. See I - EEC-IV SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.
• Check engine compression. Check engine mechanical condition. Check camshaft and valve train components.
• Ensure transmission is functioning properly.