Test Step 3

Ignition Secondary Pattern:

^ The average value of spark plug firing voltage: greater than 15 KV with evenness of spark plug firing voltage: 5 KV or less.

^ Problems affecting all cylinders:
- Check ignition coil wire for proper installation in coil and distributor cap.
- Measure resistance of ignition coil wire. Replace if greater than 7000 ohms per foot.
- Wide spark plug gaps-all cylinders (usually from worn electrodes due to high mileage).
- Inspect cap and rotor for problems causing excessive cap-to-rotor gap.