does mafs controll fuel pressure

[my98ranger912]

Just wonfering if a bad maf would affect fuel pressure or does it just control how much fuel the injectors put out?

 

[HAPPY+RANGER+GUY]

Should not have any impact on fuel pressure.

 

[Surrey]

Fuel pressure is caused by the fuel pump.

 

[jrpdash9]

Has nothing to do with fuel pressure but does adjust the injector pulse.

 

[stuntsunltd.]

Mafs

Fuel is supplied to the fuel system by the fuel pump. The fuel pressure is controlled by the fuel pressure regulator. If you are having problems with too much fuel pressure its a good idea to check the vacumn lines going to the regulator as a vacumn leak will result in the injectors recieving constant flow at full pressure causing the fuel/air mix to be too rich and cause a check engine code. Too little fuel pressure, check to make sure you dont have a dirty fuel filter. The job of the mafs is to measure the ammount of air comin into the engine and decide how long the injectors should spray inorder to maintain a proper fuel/air mix.