Other G6 owner w/ engine light on
I have about 74k on my G6. The engine light just came on. So far, only a slight drop in fuel efficiency has been noted. I've yet to have a code reader verify that it is a O2 sensor but, it was my first guess. I just did not know which one. I originally suspected the pre-cat one but, I've been told that it would be more likely the one after the cat. Question, did you guys reset the light via a code reader or by disconnecting the batt or what? I am not weathly enough to take the vehicle to a dealership, at this time.. so it is why I'm trying to fix it myself, with little investment as possible.