My CEL on my stock 2009 GT randomly came on a few days ago. I took it to a friend who read the code as P2272, Oxygen sensor signal stuck lean bank 2 sensor 2.
It looks like that is the O2 sensor on the passenger side, behind the catalytic convertor...is that true? Is it easy to replace? Any idea what GM part number I would use to order a new one?
Is there anything else that I am missing?