Engine Stalls Under Acceleration/Deceleration
- Check fuel pressure.
- Check fuel injectors.
- Check idle adjustment screw passage for clogging (under deceleration).
- Check Idle Air Control (IAC) Valve.
- Check for intake air leaks.
- Check Exhaust Gas Recirculation (EGR) system.
- Check ignition spark and spark plugs.
- Check main power supply and ground circuits.