2. Throttle Position Sensor: The throttle position sensor tells the engine control unit (ECU) how far the throttle is open. If it is faulty or out of calibration, it can send incorrect signals to the ECU, causing the engine to stall.
3. Mass Air Flow Sensor (MAF): The MAF sensor measures the amount of air flowing into the engine. If it is faulty or dirty, it can provide incorrect readings to the ECU, which can lead to stalling.
4. Oxygen Sensor: The oxygen sensor monitors the amount of oxygen in the exhaust gases. If it is faulty or out of calibration, it can cause the ECU to adjust the fuel mixture incorrectly, which can lead to stalling.
5. Fuel Pump: The fuel pump supplies fuel to the engine. If it is faulty or has a clogged fuel filter, it can cause the engine to stall due to fuel starvation.
6. Clogged Fuel Injector: A clogged fuel injector can prevent fuel from being properly delivered to the engine, causing it to stall.
7. Vacuum Leak: A vacuum leak can cause the engine to run lean (too much air and not enough fuel) and can lead to stalling.
8. Faulty Ignition System Components: Faulty spark plugs, ignition wires, or a bad distributor cap or rotor can cause the engine to stall.
9. Transmission Issue: A faulty transmission can also cause the engine to stall when the vehicle slows down.
10. Electrical Problems: Electrical problems such as a loose or corroded connection, a bad relay, or a faulty ignition switch can also cause the engine to stall.
Without further diagnostic information, it's difficult to pinpoint the exact cause. If you're unable to diagnose and fix the problem yourself, it's best to have the vehicle inspected by a qualified mechanic.