Just finished my S52 OBD2 swap and the car is running fantastic, but after about 10 or so miles of driving, I will get O2 sensor adaptation limit and out of range faults on both banks. From what I've read up here in different threads, that is usually caused by one of 3 things:
-vacuum leaks
-dying MAF
-bad CVV
I should also add that I am only running the 2 O2 sensors pre-cat on my headers, and had the post cat sensors flashed out when my ECU was flashed.
I have changed the MAF with no result. I've also checked for vacuum leaks by spraying starting fluid everywhere I can find a potential vacuum breach but I'm not getting any change in idle. I haven't changed the CVV yet but I would have thought it would be a vacuum leak candidate if it was bad.
Anyone have any insight or other ideas? I'm tearing my hair out over here. Thanks-
-vacuum leaks
-dying MAF
-bad CVV
I should also add that I am only running the 2 O2 sensors pre-cat on my headers, and had the post cat sensors flashed out when my ECU was flashed.
I have changed the MAF with no result. I've also checked for vacuum leaks by spraying starting fluid everywhere I can find a potential vacuum breach but I'm not getting any change in idle. I haven't changed the CVV yet but I would have thought it would be a vacuum leak candidate if it was bad.
Anyone have any insight or other ideas? I'm tearing my hair out over here. Thanks-
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