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Originally Posted by SCHMOUPE
Update: after a few times clearing the codes, my codes disappeared and I was able to pass state inspection today. Without getting too much ahead of myself, I think my car learned how to "fix" itself. Bow down to German engineering!!!
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Not to be the bearer of bad news, but make sure you put it on a dyno that can read AFR. You need to make sure things are actually ok, and not that the car adapted to the bad conditions, giving you lower than expected performance.