Ford mass air flow sensor

Last Updated on July 23, 2024 by Mutiara

Ford mass air flow sensor

Ford EFI MAF.jpg

This sensor uses a heated wire to actually measure the weight of incoming air. The cooler the wire becomes, means more air is passing it, into the engine. Once the mass of incoming air is known, calculating fuel ratio is almost perfect. The air mass is cross referenced with engine temp in a table, again plotting where in the table temp and air mass meet provides a basic fuel ratio. Only used on MAF systems.

Ford EFI MAF diagram.png

Pinout diagrams

Ford EFI MAF pinout0.png Ford EFI MAF pinout1.png

Ford EFI MAF pinout2.png

Article & images courtesy of fordfuelinjection.com.

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