[pecivil]

ed,

since I put on the headers/cats I get the P1115 and P1116 and P1117 and P1119. The o2 sensors were all replaced with new stock too when the headers went on.

My mech and I think the problem lies in having to lengthen the o2 sensor wires to get to the new locations in the cats. At least in my setup, he had to lengthen the wires for both of the post cat sensors. The resistance of the wires changes as they get longer, and that may be what screws up the sensor.

I know my sensors are good, but the fault keeps getting thrown. But the car runs like a top, so I dont worry too much. It would be nice tho if something could be done.