Quote:
Originally Posted by che_beaver
The O2 sensor can come back in range. There are several codes associated with the O2 sensor (see here) and if they come back in range the code can reset. I don't know the exact mileage or duration for it to reset and if it is only for specific codes, but that could have been what happened.
For example, I had P0138 and P0139 for the rear O2 sensor. After about a week the SES light went off, presumably because there was nothing wrong in the first place (my MAF was on the fritz).
Best thing you can do is when the SES light comes back on pull the code. It is not bad if it goes on and off (caveat, it is bad if you reset it without diagnosing and fixing the problem). How many miles are on your max? |
Ive sneaking up on 118,000... I changed out the O2 sensor with a Bosch one I got @ autozone, but it came back on last night... DAMNIT