In this video, we explain car engine sensors, detailing their functions, operations, locations, and effects of malfunctions.

Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...

I had a test done at local auto-parts store that showed a code of PO138. They told me this indicates a problem with the oxygen sensor. I replaced the oxygen sensor and the light never went out. I ...

While O2 sensors have no fixed replacement schedule, your driving style and the health of other engine components can ...