Fuel Injected
- Ensure air intake system is not restricted.
- Ensure engine is at normal operating temperature.
- Verify base timing is correct.
- Ensure exhaust system is not restricted.
- Check EGR system for correct operation.
- Check throttle body electrical connections.
- Ensure fuel system pressure is correct.
- Check purge control valve operation.
- Ensure throttle position sensor has correct adjustment and resistance value.
- Check operation of coolant temperature sensor.
- Check ISC solenoid (Tracker).