HP Tuners Tutorials

[Gregski]

Timing

GM sets timing in the Gen 3 engines in two places relying on four different tables.

1. Idle Spark Advance section (In Drive table or In Park table)

2. Base section (High Octane table and or Low Octane table)

All four of these tables live under Engine \ Spark \ Advance in your VCM Editor

We will start out by talking about the Base ignition timing ie the main timing.