The oxygen sensor was replaced but the 'check engine' light won't go out. Now what? Which octane fuel is best? AAA's Car Doctor has answers.

To maintain your oxygen sensors, ensure you use quality fuel and regularly service your oil, spark plugs, and air filter. Signs of oxygen sensor failure may include a check engine light, engine ...

CARS.COM The problem: The check-engine light may illuminate due to a faulty oxygen sensor. Cars affected by service bulletin: 2013 Hyundai Veloster 2014 Hyundai Veloster 2015 Hyundai Veloster ...

How do you check if the oxygen sensor is working? I have a VX Commodore that is misfiring when idling. It was fine before it was stored in the shed for a few months, we have done coil packs, air ...

The oxygen sensor was replaced but the 'check engine' light won't go out. Now what? Which octane fuel is best? AAA's Car Doctor has answers.