It stands for Mass Air Flow and is a device that allows the ECU to quantify the volume of air entering the engine in order to calculate the correct quantity of fuel to inject.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.