O2 sensor says no voltage

vendredi 29 juillet 2016

Hey guys! I'm a new 8 owner, don't hate please I have the 4-speed automatic, only because I got it for a steal and every one where we looked wanted WAAAY too much for the car, this one has good compression but could use a tune up. Any how the CEL is on and we plugged a scanner into it and it shows that the rear O2 sensor is flat lined with no voltage at all, while the loop is closed and it says all other systems complete the tests, the car still runs fine starts right up with no issues and has plenty of power but is using way more gas than it should, I'm just unsure what to do, please help? The loop is closed and I read on another forum that if the front O2 sensor is bad the loop wouldn't be able to close, so with that said, any suggestions as to the actions I take from here? I know a lot and did a lot of research before getting the car, and it's throwing a too lean code because of the sensor issue. So should I'm thinking I should just replace both sensors with the OEM replacement and get a new cat and call it done, do you guys think that would likely fix my issue?


O2 sensor says no voltage

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