The Oxygen (O2) sensor is arguably the most critical electronic component for your engine’s efficiency. Often referred to as the "nose" of the engine, it continuously monitors the amount of unburned ...

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 ...

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 ...