IGN6 - Check Secondary Display (Continued)

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

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:
- Valves
- Fuel injectors
- Compression

NO -- Go to IGN7. IGN7 - Check Secondary Display (Continued)