1. Spark Plugs: Check the spark plugs to ensure they are not worn out or fouled. Replace them if necessary.
2. Fuel Filter: A clogged fuel filter can restrict fuel flow to the engine, causing sputtering and stalling. Replace the fuel filter if it is dirty or clogged.
3. Fuel Pump: A faulty fuel pump may not be providing enough fuel pressure to the engine, causing it to sputter and die. Check the fuel pressure and replace the fuel pump if it is not working properly.
4. Ignition Coil: A faulty ignition coil may not be providing enough spark to the engine, causing it to sputter and stall. Check the ignition coil and replace it if it is not working properly.
5. Mass Air Flow Sensor (MAF): A faulty MAF sensor may be providing incorrect air flow readings to the engine computer, causing it to run rich or lean. Clean the MAF sensor or replace it if it is not working properly.
6. Oxygen Sensor: A faulty oxygen sensor may be providing incorrect oxygen level readings to the engine computer, causing it to run rich or lean. Replace the oxygen sensor if it is not working properly.
7. Throttle Body: A dirty throttle body can restrict air flow to the engine, causing it to sputter and stall. Clean the throttle body and replace it if it is damaged.
8. Idle Air Control Valve (IAC): A faulty IAC valve may not be controlling the idle speed properly, causing the engine to stall. Clean the IAC valve or replace it if it is not working properly.
9. Vacuum Leaks: Vacuum leaks can cause the engine to run lean, causing it to sputter and stall. Check for vacuum leaks and repair them if found.
10. Computer: If none of the above solutions work, the problem may be with the engine computer. Have the computer diagnosed by a qualified mechanic.
