Rough idle with forced induction

Originally Posted by Mitco39

I think I may have found the fix today. I believe the car switches to the "cold" fuelling tables. I copied my main table into the cold (or what uprev calls cold) and it seems like its just fine now. I will have to get more seat time on it to make sure that was indeed the issue and its not just some fluke it has not came back.

Jason, unplug your 2 downstream O2s and see what happens, you will have a CEL but the car will run just fine (or you can delete it with the tuner cable if your tune is unlocked).

On a side kinda related note, I went to the track and ran 12.7 (not the best), but trapped at 120mph which I thought was awesome. Last year IIRC my trap speed was 110mph.

Originally Posted by jwick

do you have to remove the post cat O2 sensors to do this fix or can you just copy the cold start settings?

Originally Posted by Mitco39

You could try just the cold timing tables. The O2s were to just get it to idle and drive with both banks at the target afr. I found that if you keep the O2 plugged in one bank will always run richer than the other under closed loop.