- Idle Air Control Valve (IAC): A dirty or faulty IAC valve can cause the engine to idle erratically or stall.
- Fuel Pressure Regulator (FPR): A faulty FPR can cause the engine to run lean, which can lead to stalling.
- Catalytic Converter: A clogged catalytic converter can restrict exhaust flow and cause the engine to stall.
- Computer (PCM): A faulty PCM can cause a variety of problems, including stalling and shut-off.
- Wiring Issues: Bad wiring connections or shorts can also cause the engine to stall or shut off.
To diagnose the exact cause of the stalling, it's best to have the vehicle inspected by a qualified mechanic. They can use diagnostic tools and their expertise to pinpoint the problem and recommend the appropriate repairs.