My car has headers and the person who pulled the 02 sensors apparently did not return them to the correct order. If would help if I had a copy of the 02 sensor wiring diagram so I would know where to install the 02 for B1, S1 and B2, S1 for my headers. I have all the bungs, but my 02 sensors are giving my tuner fits. I need to follow the correct path from B1 to S1, and B2 to S1 so my tuner can tune it correctly. Any ideas how to do this? Both banks' sensors apparently are on the fritz.