Modern cars have a ton of electronics and sensors on board, and that usually includes multiple oxygen sensors. Here's why cars have more than one.

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 ...

In this video, we explain every car engine sensor, detailing their functions, operations, locations, and implications of failure. We cover OBD2 error codes such as P0335, P0118, and P0131. Sensors are ...

When we got the invitation to tour Bosch's oxygen sensor plant in Anderson, South Carolina, it had all the allure of eating a sand sandwich. Let's face it, oxygen sensors aren't the most glamorous ...

A check engine light can appear without warning, leaving drivers wondering whether the problem is minor or requires immediate ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

Replacing a faulty oxygen sensor typically costs between $200 and $500, depending on your vehicle type, sensor location and whether you choose DIY or professional installation. Replacing an oxygen (O2 ...