Talk:Nissan 240SX Performance Modification/Ignition and Fuel Management/MAF

A mass air flow sensor is usually mounted to the intake manifold or intake tube after the filter. It records and measure the amount of air and the temperature of air entering the Intake manifold. The MAF sensor sends that data to the Engine Computer, wich in turn, decides how much fuel to send into the combustion chamber, to create a good Fuel/Air mixtuer.