Mass Air Flow Sensor

A Mass Air Flow (MAF) Sensor is a device used in automotive engines to measure the amount of air entering the engine. It is a critical component of the engine management system as it provides data to the engine control unit (ECU) to calculate the appropriate fuel-air mixture for combustion.

The MAF sensor works by using a heated wire or film element that is cooled by the incoming air. As the air flows over the element, it causes a change in the temperature of the element. The ECU measures this temperature change and calculates the mass of the air entering the engine.

The MAF sensor is typically located between the air filter and the throttle body. It is connected to the intake manifold and has an electrical connector for communication with the ECU.

In the supply class Miscellaneous Engine Accessories, Nonaircraft, the Mass Air Flow Sensor is categorized as an engine accessory that is not specific to aircraft engines. It is commonly used in various types of non-aircraft engines, such as those found in cars, trucks, and other vehicles.

Overall, the Mass Air Flow Sensor plays a crucial role in ensuring optimal engine performance and fuel efficiency by accurately measuring the amount of air entering the engine.