IGN3 - Check Secondary Display

Normal Firing Voltage:

NOTE: If this portion of the diagnostic procedure is to provide accurate results, it is essential that the calibration of your engine analyzer be maintained. Refer to your equipment manual. If this is not available, an estimate of the calibration can be made by connecting the spark tester to a properly operating ignition system and measuring the firing voltage of the spark tester only. Do not include the firing voltage to the cap-to-rotor gap. The spark tester firing voltage should be approximately 28KV (±10%).

^ Connect a Rotunda Engine Analyzer 010-00575, or equivalent to view parade display of ignition secondary system.

^ Slowly increase the engine rpm from idle to 2000 rpm, and compare the engine analyzer display to the illustrations in the next six test steps.

^ Is the evenness of spark plug firing voltage and the average value of spark plug firing voltage normal and stable?

YES -- Go to ADV1. ADV1 - Check Vacuum Supply

NO -- Go to IGN4. IGN4 - Check Secondary Display (Continued)