An airflow meter, also known as an air mass meter or mass airflow sensor, is a device used to measure the mass of air flowing through an intake system. It is a critical component in modern fuel-injected engines as it provides essential information to the engine’s computer to determine the correct amount of fuel to inject.
A faulty airflow meter can lead to a variety of engine problems, including poor fuel economy, hesitation, and stalling. Therefore, it is important to know how to check an airflow meter to ensure that it is functioning properly.