Hey guys. I installed a set of Pace setters on my 02 Trans am and now I'm throwing a PO153 code saying the back 2 sensor 1 slow responce. Well I replaced the O2 with one of the leftover sensors from the conversion to LTs. After a couple days the code came back. While I was sitting at the drive through yesterday my eyes started burning and I realized that it was the car running rich. Is this normal? Why am I still throwing this code (that went out but I'm sure will come back)?

Vinny


Oh yeah I have a Diablo sport programmer for the car