- Check fuel pressure and flow.
- Clean the fuel filter.
- Inspect fuel lines for leaks or damage.
2. Air intake system:
- Check air filter for clogs or restrictions.
- Inspect the air intake hose for leaks or damage.
- Clean the throttle body and IAC valve.
3. Ignition system:
- Check spark plugs for wear or damage.
- Inspect the spark plug wires for cracks or damage.
- Check the distributor cap and rotor for cracks or damage.
4. Electrical system:
- Check the battery for proper voltage and connections.
- Inspect the alternator and starter for proper function.
- Clean the battery terminals.
5. Sensors:
- Check the coolant temperature sensor.
- Inspect the oxygen sensor.
- Clean the MAP sensor.
6. Vacuum system:
- Check all vacuum hoses for leaks or damage.
- Check the PCV valve for proper operation.
7. Computer (PCM):
- Check for any error codes stored in the computer.
- Reset the computer to default settings.
If the problem persists, a professional mechanic should further diagnose the issue.