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Im really new to this but can i use that info and just copy it into the ve table of the stock tune or should i set it up as an open loop and the re do the log and the copy that info by percent into...

Thanks for the info. I fixed the tune to make sure it was just a stock gm tune, seemed to help. I checked the codes only ones are p0420 which is catalyst system below effeciency. I also got a log...

this may sound stupid but i tried to raise the maf calibration for the cai but that didnt seem to do anything so i just set it back to stock Im really new to tuning

I dont think that i have a p0171 but ill check to make sure tommorow i had some other codes for an o2 sensor ill have to look exactly what they are tommorow

I have a cobalt that has a zzp cai on it and a magnaflow catback. At idle the afr jumps around from lower 14s to higher 15s is this normal for a stock tune? Also when you touch the pedal and raise...

All factory except for a magnaflow cat back the TB is stock and is clean. I will have to try a smoke test.

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I got the car without a motor an purchased an lsj short block from zzp. Put it all together and back to stock. I went to the repository tunes for the site and wrote the ecu back to stock, but it just...