Posted on 12/7/2025
If your vehicle has an internal combustion engine, it depends on two things to make propulsion power for you to be able to motor on down the road: fuel and air. The engine mixes the two in just the right proportion so that they can be ignited, creating a series of tiny explosions that are coordinated in such a way that your vehicle moves steadily ahead. One of the key parts to making sure that mixture of air and fuel is correct is a little tube that measures the amount of air that’s coming into the engine. It’s called a Mass Air Flow sensor, or MAF sensor. There are two wires in this tube, one of which is heated up with electricity and the other isn’t. When the air flows over the heated wire, it cools. When the temperature of the two sensing wires is different, the MAF sensor either increases or decreases the current to the heated wire to try to make it the same as the other wire. That’s sent to a small computer that tells the engin ... read more