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.

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

Oxygen Sensor Data: OBD2 scanners can provide data related to the performance of oxygen sensors, helping diagnose issues with fuel efficiency and emissions.

We gathered several top-ranked OBD-II scanners and ran them through extensive testing to find the best for you.

The P0138 DTC is a generic trouble code that says the oxygen sensor circuit (Bank 1, Sensor 2) is exhibiting higher voltage than normal. The Powertrain Control Module (PCM) detects that the voltage ...