The Oxygen Sensor (O2 sensor) is the "nose" of your engine’s computer. Positioned in your exhaust system, it constantly ...

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 ...

The "Check Engine" light is the most feared dashboard notification, but for the Oxygen (O2) sensor, it is a lagging indicator ...

Let's begin with the basics here: An automotive oxygen sensor is part of the exhaust system and does what its name implies, sensing how much oxygen is in the exhaust gases. And that's important for at ...

One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

Hello Paul, I have heard that faulty oxygen sensors are the reason my car is using more fuel than usual. What does this sensor actually measure, and how does it influence fuel efficiency and emissions ...

How many oxygen sensors does a typical car have, and what factors determine this number? Additionally, how do their placements affect engine performance and emissions control? Thomas Hello Thomas, the ...