Yeah, the car has 140k miles on it and i have done 2 oxy sensors over the past couple of years. Those times i just got a bad o2 sensor code and it told me which bank and which sensor.
This time it is just the lean bank 1 code. So you are saying it is just a precursor to an 02 sensor going bad? I guess i will just run it until it tells me which one to replace.
thanks
