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Q: o2 sensor on 2003 Hyundai Elantra

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
The o2 sensor will not go off. The car runs fine. Mechanics cannot find anything wrong with the car. How do we get the senor to go off?
(1) Answer
Not sure what you mean, is the check engine light coming on? Is that what you can't get to "go off"? If so, can you post the codes that are being stored int eh engine module?
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