Olds Achieva day at the Test & Tune

[Robert Swartz]

Originally Posted by Ed Wright

Robert, if you think the ECU is learning to undo your changes you can jumper the ECM (or PCM) Batt fuse to the powered side of the ECM (or PCM) Ign fuse. That way every time you turn it off any learning will be lost. I think your mistaken about that happening, but that would take care of that if it is.

Slowing like that as it heats up is normal for those.

Ed,

At present, we don't have a way to tune the car. The ECM still has complete control. What I ran into, we were attempting to vary the shift points. It would shift at 6200 rpm in spite of what we did.

That's something I don't have is an ability to make tuning changes to the ECM. I don't know of any chips for these cars. An avenue I haven't explored deeply, yet.

Thanks for the burnout tips, guys. Until I get the DR's on it, that's really not an issue. Does give me something to work on.