Ignition System: Testing and Inspection

1. Engine cranks, but does not start.
1. Spark is insufficient or does not occur at all (on spark plug).
- Check ignition coil.
- Check crankshaft position sensor.
- Check ignition power transistor.
- Check spark plugs.
- Check spark plug cable.
2. Spark is good.
- Check ignition timing.
2. Engine idles roughly or stalls.
- Check spark plugs.
- Check ignition timing.
- Check ignition coil.
- Check spark plug cable.
3. Poor acceleration
- Check ignition timing.
- Check spark plug cable.
- Check ignition coil.