1. Fuel filter: A clogged fuel filter can restrict the flow of fuel to the engine, causing it to run lean and stall. Replace the fuel filter if it's clogged.
2. Spark plugs and wires: Worn-out spark plugs or damaged spark plug wires can cause the engine to misfire, which can lead to stalling. Replace the spark plugs and wires if they're worn or damaged.
3. Fuel pump: A faulty fuel pump can't deliver enough fuel to the engine, causing it to run lean and stall. Test the fuel pump and replace it if it's faulty.
4. Fuel pressure regulator: A faulty fuel pressure regulator can cause the fuel pressure to be too low or too high, both of which can cause the engine to run poorly. Test the fuel pressure regulator and replace it if it's faulty.
5. Throttle body: A dirty throttle body can cause the engine to run rough and stall. Clean the throttle body and see if the problem improves.
6. Ignition coil: A faulty ignition coil can cause the spark plugs to fire at the wrong time, causing the engine to misfire and stall. Test the ignition coil and replace it if it's faulty.
7. O2 Sensor: A faulty O2 sensor can lead to the car running too rich or too lean which could both lead to stalling.
Additional tips:
- Use a fuel system cleaner to help remove deposits from the fuel system.
- Inspect the fuel lines for any leaks or cracks.
- Check the air filter and clean or replace it if it's dirty.
- Have the engine codes scanned to see if there are any underlying issues.
