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pulling the radio fuse worked perfectly. Thanks!

Stonewall,
I've used several computers and several USB ports so I don't think its that unless its with the USB cable or the tuner cable itself. I haven't had chance yet to try with the radio fuse...

Hmm, I don't have OnStar so that wouldn't be the issue but I do have an aftermarket radio so maybe I'll try pulling that and see what happens.

Edit: Is it normal for the DIC to flash all sort of...

With my 05 Grand Prix I have lots of problems reading my PCM. If I try the fast mode, it fails out right away with a timeout issue. It tries several times and then gives up. If I don't use the...

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I also switched back to the stock PCM and I was still getting knock. It wasn't QUITE as bad but still more that I'd expect with an intake and mufflers. It peaked at 6 degrees and under any...

Hi guys, I'm new to tuning and just did a few scans with my HP Tuners but from what I can tell, I think there are some obvious issues with my current tune and I should be able to pick up some real...