What is the function of the mass airflow sensor (MAF)?

The mass airflow sensor (MAF) plays a critical role in the engine management system by measuring the amount of air entering the engine. This measurement is essential for the engine control unit (ECU) to determine the optimal fuel delivery required for efficient combustion. By accurately gauging the air intake, the MAF sensor allows the ECU to adjust the fuel mixture according to varying driving conditions, such as acceleration or cruising. This contributes to better fuel efficiency, lower emissions, and improved overall engine performance.

The other options presented do not accurately capture the MAF's primary function. While controlling engine temperature and enhancing engine speeds are important aspects of engine performance, they are not directly related to the role of the MAF sensor. Likewise, analyzing exhaust gases pertains to different components, such as oxygen sensors or exhaust gas analyzers, which monitor emissions rather than the intake air that the MAF sensor measures.