- Faulty fuel pump or fuel pressure regulator
- Clogged fuel filter
2. Air Intake Issues
- Obstructed air filter
- Vacuum leaks
- Faulty mass air flow (MAF) sensor
3. Ignition System Problems
- Worn-out spark plugs
- Faulty ignition coils
- Bad spark plug wires
- Distributor cap or rotor issues (older vehicles)
4. Idle Air Control (IAC) Valve Problems
- Dirty or faulty IAC valve
- Carbon buildup around the valve
5. Throttle Body Issues
- Dirty throttle body
- Faulty throttle position sensor (TPS)
6. Faulty Sensors
- Oxygen sensor (O2 sensor)
- Coolant temperature sensor
- Crankshaft position sensor
- Camshaft position sensor
7. Computer Issues
- Faulty engine control unit (ECU)
- Software glitches or bugs
8. Vacuum Leaks
- Cracks or loose connections in vacuum hoses
9. Mechanical Issues
- Engine compression problems (worn piston rings, damaged head gasket)
- Clogged catalytic converter
