Diagnosis By Symptom

Engine Cranks, but Will Not Start
Spark is insufficient or no spark
- Check ignition coil
- Check crank angle sensor (in the distributor)
- 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

Engine Overheats or Uses Excessive Fuel
- Check ignition timing