[tanner.GT]

hey guys I just put a motor out of an 01 into my 2000 runs amazing by the way but I originally had an off road h pipe and flowmasters but with the motor swap I went to longtubes and an off road x pipe...long tubes were a pain in the ass to put on by the way...but since then the code PO155 has popped up I keep deleting it but I keeps popping up its on bank 1 sensor 2 but I have a exhaust leak at the drivers side header wuld this cause this code also I barely got ny 02 sensor on that side hooked up I almost had to stretch the wire to get to it culd it of caused a short? Or should I just replace the 02 sensor?

[1_nice_03_gt]

u didnt get extensions for the 02 sensor? it probably not readying the sensor n on my obd2 thing its readying your code is bank 2 senor 1. idk man imma let the real gear heads jump in on this one, my .02 is buy the extenstions n new 02 sensors

[tanner.GT]

Na man. I just ordered them on ebay......but I'm bout to replace the 02 sensor and I was told it mite b my exhaust leak by the header its quite noticable I'm hoping I dnt have a short in my wiring

[carnut59]

yes an exhaust leak can throw a o2 sensor code. fix the leak, put the extensions on. only replace the sensor if the light comes back on.