Diagnosis By Symptom

Engine Cranks, But Will Not Start
Spark is insufficient or no spark
- Check ignition coil
- Check crankshaft position sensor
- Check power transistor
- Check spark plugs
- Check spark plug cables

Spark is good
- Check ignition timing

Engine Idles Roughly Or Stalls
- Check spark plugs
- Check ignition timing
- Check ignition coil
- Check spark plug cables

Poor Acceleration
- Check ignition timing
- Check spark plugs
- Check ignition coil