Diagnosis By Symptom

1. Engine cranks, but does not start
a. 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
b. 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