IGN5 - Check Secondary Display (Continued)

Low Firing Line:

^ Is the evenness of the spark plug firing voltage greater than normal voltage of 28KV?

YES -- Check for ignition problems affecting some cylinders:
- Wide spark plug gap(s) or worn electrode(s)

- Improperly installed cap or rotor

Check for mechanical problems affecting some cylinders:
- Compression

- Vacuum leaks

- Fuel injectors

- Valves

NO -- Go to IGN6. IGN6 - Check Secondary Display (Continued)