Engine Stalls
NOTE:
Unless otherwise indicated, see SYSTEM & COMPONENT TESTING
article for testing procedures.
- Check fuel pump circuit.
- Check fuel injector circuits.
- Check Idle Air Control Valve-Auxiliary Air Control (IACV-AAC) valve circuit (QX4 only).
- Check electric throttle control actuator (Except QX4 only).
- Check ignition circuit.
- Check main power supply and ground circuit.
- Check mass airflow sensor circuit.
- Check front heated oxygen sensor circuit.
- Check engine coolant temperature sensor circuit.
- Check TP sensor circuit.
- Check throttle position sensor adjustment (Only QX4).
- Check ECM power and ground circuits.
- Check crankshaft position sensor (POS) circuit.
- Check camshaft position sensor circuit (Except QX4).
- Check vehicle speed sensor circuit.
- Check power steering pressure sensor circuit.
- Check refrigerant pressure sensor circuit (Except I35 & QX4).
- Check fuel pressure regulator. See BASIC DIAGNOSTIC PROCEDURES article.
- Check EVAP system.
- Check PCV system.
- Check ignition timing and idle speed adjustment. See ON-VEHICLE ADJUSTMENTS article.
- Check fuel delivery system.
- Check intake valve timing control solenoid valve circuit (Except I35 & QX4).
- Check A/C circuit.