KP - Octane Adjust

Enter this Pinpoint Test only when directed here from Quick Test step 9.0 (Diagnosis By Symptom).

This Pinpoint Test is only intended to diagnose the following:

1. Octane shorting bar connector.
2. Harness circuits: VPWR, Octane adjust.

The purpose of the octane adjust shorting bar is to optimize combustion by providing a mechanism to permit spark advance modification.

If detonation occurs, removing the octane adjust shorting bar will retard spark timing an additional three to four degrees. If detonation continues, use of a higher octane grade of fuel is recommended.


PINPOINT TEST KP SCHEMATIC

Pinpoint Test KP Schematic: