In case you want to skip what a mass air flow sensor is and does, you can start at timepoint 6:30 to begin the diagnosis and repair section of the video. In the video, you will learn: ...

As today's science and engineering focuses more and more on micro technology, the requirement to be able to measure and control extremely low gas mass flow rates has become very important.

GM has issued a recall for certain units of the Chevy Low Cab Forward 3500 and 4500 models due to an issue with the mass air flow (MAF) sensor.