Your engine needs a steady stream of clean air to function properly, and it's the job of the mass air flow (MAF) sensor to measure and regulate the amount of clean air entering the intake. The engine ...

When the air mass sensor on my car is plugged in, it drives terribly, goes into limp mode before 3000rpm. When the sensor is unplugged it drives okay. What can I do? Why will my Citroen Xsara not rev ...

Every sensor on or in a computer-controlled car or truck talks to the “on-board PC” in a kind of language you’ve never heard or seen. All of the inputs are in a voltage-speak and are all numbers. All ...