One of the most common reasons your check engine light comes on is a faulty oxygen sensor. Here's how to detect problems with the sensors and how to fix them.

Replacing a faulty oxygen sensor is the only viable solution to get your car running properly again. To this end, this article provides a step-by-step guide on how to replace a faulty oxygen sensor.

Apple The new Apple Watch Series 6 comes with a blood oxygen sensor and an accompanying app to give you more ways to monitor your heart and respiratory health.

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.