1. Fuel Pressure: Check the fuel pressure to ensure it meets the manufacturer's specifications. A low fuel pressure could cause the engine to stall when not receiving enough fuel.
2. Fuel Pump: If the fuel pump is weak, it may not be able to deliver sufficient fuel to the engine, leading to stalling.
3. Fuel Filter: A clogged fuel filter can restrict fuel flow and cause starting issues.
4. Idle Air Control (IAC) Valve: The IAC valve regulates the amount of air that enters the engine during idle. A faulty or dirty IAC valve can cause stalling issues.
5. Throttle Body: A dirty or malfunctioning throttle body can affect air-fuel mixture, causing stalling.
6. Engine Coolant Temperature Sensor: A faulty coolant temperature sensor can provide incorrect temperature readings to the engine computer, leading to improper fuel mixture and starting problems.
7. Ignition System: Issues with spark plugs, spark plug wires, distributor cap, or ignition coil can affect the ignition process and cause stalling.
8. Vacuum Leaks: Vacuum leaks can introduce unmeasured air into the engine, affecting engine idle and causing stalling.
9. Mass Air Flow Sensor (MAF): A dirty or faulty MAF sensor can provide incorrect air flow data to the engine computer, impacting the air-fuel mixture and causing stalling.
To accurately identify and resolve the cause, it's advisable to consult with a qualified mechanic or automotive technician who can perform diagnostics, check for error codes, and conduct necessary tests to pinpoint the root of the problem.