- Idle Air Control Valve (IACV): The IACV regulates the amount of air that bypasses the throttle valve. If it's faulty or clogged, it can cause the engine to idle erratically and stall.
- Throttle Position Sensor (TPS): The TPS sends information to the ECU about the position of the throttle valve. If it's malfunctioning, it can provide incorrect data, leading to unstable idling and stalling.
- Vacuum Leaks: Vacuum leaks can cause a lean fuel mixture, resulting in rough idling and stalling. Check the vacuum hoses for cracks, disconnections, or leaks.
- Fuel System Issues: Problems with the fuel pump, fuel filter, fuel injectors, or fuel pressure regulator can affect the fuel delivery to the engine, leading to stalling.
- Faulty Ignition System: Ignition-related issues, such as faulty spark plugs, worn-out distributor cap or rotor, or a weak ignition coil, can cause misfires and stalling.
- Electrical Problems: Malfunctions in electrical components like the battery, alternator, or wiring can affect engine performance and lead to stalling.
Note: It's best to have a qualified mechanic diagnose the exact cause of the stalling issue. Some of the above repairs may require specialized tools or expertise.
