MAF sensor vs distance from throttle body

[VAUGHN4wd]

hey guys, does the maf sensor have to be a certain distance from the throttle body to run right? i just doved the front body of my explorer and had to run the intake to the drivers side instead of the passenger side for clearance, Has anyone done this before? just finishing up cutting the fenders so i have not ran or driven it yet! thanks

 

[imp]

hey guys, does the maf sensor have to be a certain distance from the throttle body to run right? i just doved the front body of my explorer and had to run the intake to the drivers side instead of the passenger side for clearance, Has anyone done this before? just finishing up cutting the fenders so i have not ran or driven it yet! thanks

@VAUGHN4wd
The system itself does not care where the MAF is located, really, EXCEPT: it must not be located where a lot of turbulence in the air movement exists. That means not close to the inlet, or filter, where cross-sectional area changes, making the air swirl around. Also, too close to the throttle body is no good either, because the air alternately "bunches up" against it, causing turbulence. Turbulence confuses the MAF sensor, it needs smooth flow, center of duct is good. imp

 

[seville009]

On my 2011 F350, the maf is right after the filter housing which sits close to the front of the truck, but probably 1.5’ from the throttle body.

On my 2006 F350, the filter housing sits right on top of the throttle body and the maf is right there too.

So either distance doesn’t really matter, or Ford changed the design to move it farther from the throttle body

In each case though, the maf is right after the air filter, so that is probably the key factor.

 

[imp]

On my 2011 F350, the maf is right after the filter housing which sits close to the front of the truck, but probably 1.5’ from the throttle body.

On my 2006 F350, the filter housing sits right on top of the throttle body and the maf is right there too.

So either distance doesn’t really matter, or Ford changed the design to move it farther from the throttle body

In each case though, the maf is right after the air filter, so that is probably the key factor.

@seville009
The air entering the filter, as well as that passing through it is bound to be turbulent, but that settles down in the first part of the continuous diameter duct. Some set-ups are more sensitive than others. I had one where if you started the engine with the filter element removed it would barely idle. imp