Today I found out that the long term and short term IAC trims are not valid on a vette. After some frusturation, I realized its because they don't have an IAC, they have ETC. Looks like since the throttle is electronically controled, the traditional IAC functionality is just built into the throttle opening itself.

So, is there some sort of other way of logging idle trims (for the ETC?) to set desired airflow table? I searched and didn't find any information on here or LS1tech.

Any help is appreciated.

Right now I'm doing some interesting tuning. First my friend dyno'd the Z06 bone stock. Now I'm working on a tune with a vararam only. He'll dyno that to see what it gains. Then he's got some LG exhaust parts he's going to install. So I'll retune with that and dyno again. I think it will be pretty cool see what gains he gets with each one, and more importantly, what tuning changes had to be made to get the tune right for each change.