Car Parts 101: Mass Airflow Sensor
Mass airflow sensors are an integral component of your vehicle's functionality. If something malfunctions with the sensor, you'll notice immediate signs that something has gone awry. The engine at best, will run poorly or it may not run at all. How Does a Mass Airflow Sensor Work? Mass airflow sensors can also be referred to as air meters. They play a fundamental role within your automobile's system by measuring the amount of air entering the engine. The input provided by the sensor then allows the PCM (Powertrain Control Module) to regulate the opening and closing of the fuel injectors, adjust ignition timing and when the ignition coil/s fire. The aforementioned parts, in harmony with the PCM, allows the air to fuel ratio stay in proper balance. The MAF sensor has two sensing wires. Via an electrical current, one wire is heated and cooled down by the amount of air that flows over the heated wire. As the temperature difference fluctuates between the two wires, this provides input to the PCM to either provide more [...]
