×

Sale ends todayGet 30% off any course (excluding packages)

Ends in --- --- ---

Idle vs Main (Hi Octane) Spark Tables

General Tuning Discussion

Forum Posts

Courses

Blog

Tech Articles

Discuss all things tuning in this section. News, products, problems and results. 

= Resolved threads

Author
606 Views

It is said the GM ECU uses thresholds to bounce between the Base Idle and Main (Hi Octane?) spark tables based on a set of thresholds which I believe to be the following:

1. TPS or MPH > threshold = use Main Hi Octane Table

2. TPS and MPH < threshold = use base idle table

TPS < threshold and speed > threshold = use main Hi Octane Table

Does anyone know where these threshold tables are located on the GM E67 table sets?

not super familiar with this ECU but i don't think these threshold tables are adjustable in HP tuner software,

Understood. Not trying to adjust them, just trying to find them to see what the thresholds are.

We usually reply within 12hrs (often sooner)

Need Help?

Need help choosing a course?

Experiencing website difficulties?

Or need to contact us for any other reason?