I have a '98 Z28 with 145,000 miles and recently put in a new ram air/high flow air box system from SLP (better late than never I guess). The car is now hesitating and giving me a low voltage code (running lean) for all four oxygen sensors (codes are PO131, 137, 151, and 157). I was told that I needed to reset the PCM by disconnecting the battery and reconnecting it. I tried this, and I still have the hesitation. Anybody out there have any experience with this problem?

 

bad maf sensor

try pulling the plug to the maf and see if it runs. if it does, it's most likely the maf.

had that happen on my car when i put a Z06 maf on it. pulled the plug and it ran fine...swapped the stocker back on and it ran like a champ.

worth a shot