My fluctuating idle and stumbling issue came up again last Friday (Josh already knows about this) and the ECU brought up a new code…Oxygen Sensors. Fortunately I had them already as I thought these could be the issue when this problem came up a few weeks ago. In short, cleaning the MAF sensors cleared up the problem but apparently bad 02 sensors produce the same symptoms.
Looking for a professional opinion on the ones removed. Since I’ve never had to replace them, in any vehicle, I don’t know if these show any symptoms of other problems or if they look “normal”. I did notice the passenger side was markedly darker than the driver’s side. I don’t feel good about that. I don’t know if either of them look “like they should” for a used 02. Your opinions would help. Thanks for the time.
i pulled the 02s from my maxima when i had it cause i was getting an 02 code…mine looked a little burnt with like an ashy color…not quite white…the darker one looks like that bank is running rich which could be the fault of a bad 02…again just my past experience with my nissans
They look like any of the bad sensors that I’ve pulled. I’ve never pulled one before it went bad so I can’t say if they are cleaner when they’re functioning properly.
Going to put a few more miles on it tonight and see if she’s still running back to “normal”. Don’t think I want to pull them back out anytime soon to see how they’re doing. Thanks for the input.