October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Lack Of Power
- On M/T models, ensure clutch is not slipping.
- On A/T models, ensure transmission is not slipping.
- Ensure brakes do not drag.
- Ensure tire size and air pressure are to specification.
- Check throttle linkage installation and operation.
- Check operation of throttle body.
- Check Camshaft Position (CMP) sensor.
- Check Throttle Position (TP) sensor.
- Check intake manifold vacuum. Vacuum should be more than 18.9 in. Hg (1.8L), or 17.7 in. Hg (2.0L), at idle.
- Disconnect injectors in turn and check for equal RPM drop between cylinders.
- Check air filter element.
- Check fuel system holding pressure.
- Check that fuel pressure increases when abruptly accelerating.
- Check Mass Airflow (MAF) sensor.
- Check MAF sensor element for contamination.
- Check spark plug condition.
- Check spark plug wires.
- Check ignition coil resistance.
- Check engine compression.
- Check for restricted exhaust system.
- Check fuel filter.
- Check for contaminated fuel.