4.4 Other sensors 4 WIRING
4.4.4.1 Ford 5.0 Mustang 4 pin oval connector MAF
Pin Function Connection
A Switched 12 volts 12 volt fused supply from main relay
B Ground To engine block
C MAF signal ground MS3Pro sensor return
D MAF output signal MS3Pro analog input
4.4.4.2 Ford 5 pin rectangular connector MAF The rectangular connector MAF sensor has 5 pins denoted
by A, C, D, and E, with the B pin missing:
Pin Function Connection
A Switched 12 volts 12 volt fused supply from main relay
C Ground To engine block
D MAF signal ground MS3Pro sensor return
E MAF output signal MS3Pro analog input
4.4.4.3 Nissan / Infiniti Q45 MAF This is a popular MAF with many Japanese imports, although its huge
diameter (90 mm) and ability to handle large air flow volumes (by OEM MAF standards) would work well on many
smallblock domestic V8s as well. Note that the picture below uses non-stock wire colors for clarity.
AMP EFI MS3ProUltimate manual version 1.203, firmware 1.5.0, 5/23/2017 Page 44
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