A mass airflow (MAF) sensor is a device used to measure the amount of air flowing into an internal combustion engine. It is typically located in the intake manifold, and its readings are used by the engine’s computer to calculate the correct air-fuel ratio.
A faulty MAF sensor can cause a variety of problems, including poor engine performance, increased fuel consumption, and emissions. Therefore, it is important to know how to check a MAF sensor to ensure that it is functioning properly.