P0155 O2 Sensor Heater Circuit Malfunction
Which one of the four O2 sensors is that? C320.
I put new frontward O2 sensors on at 94k. I think that was ~8 months ago. On the one hand I hope that I can just change the rears and be done with it, but on the other hand the sensors have a 1-year warranty, so I could get it replaced for free. But then I'd still have to do the rears, so either way...




