I got the error code P0051 and I researched this forum and everything said to replace the bank 2 sensor 1. So I did that, I bought an $80 Bosch sensor and put it in. Everything seemed fine for about 50 miles and now the check engine, and vsc lights came back on. I am not sure what to do at this point... Anyone else had this happen? What should I do?

 

I just ran the new code and now it is saying P0031 B1S1... Is that common for both sides to go out at the same time like that or do I have something else going on possibly?

 

Our cars do not like Bosch. Buy Denso next time

 

So you do think it is the O2 sensors? Even though I replaced B2S1 with a Bosch and that code didnt come back on? I just dont want to buy more sensors if it could be soemthing else. It just seems weird that I replace B2S1 and now B1S1 went out... I dont like coincedences

 

I've had both headlights burn out at the exact same time -- so yeah, sometimes identical parts fail at the same time. (I spent an afternoon testing the wiring harness and the switch, sure that it was in there and it couldn't be the bulbs -- it was the bulbs)

I concur on buying Denso next time.

Chip H.