Test Notes

NOTE: You should enter this pinpoint test only when checking computed timing or when you have been directed here from diagnostic routines.

To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault:
- Base engine
- Distributor
- Ignition Control Module (ICM)

This pinpoint test is intended to diagnose only the following:
- Harness circuit: SPOUT
- Base timing
- Powertrain Control Module (PCM)

DESCRIPTION
The Spark Output (SPOUT) is a digital signal generated by the PCM which supplies desired spark timing and, in some instances, dwell information to the ICM. Normally, there will be one and only one SPOUT pulse for each PIP period.