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Mass Air Flow Sensor

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Old 11-03-2007, 09:08 PM
  #1  
mustangsho
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Default Mass Air Flow Sensor

Does any one know anything about changing the air fuel ratio by rotating the maf?
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Old 11-03-2007, 09:12 PM
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91hatchgt
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Default RE: Mass Air Flow Sensor

What do you want to know? It is called "clocking" the MAF. Might search that.
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Old 11-03-2007, 09:17 PM
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mustangsho
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Default RE: Mass Air Flow Sensor

I have heard all about it. My car is runing to lean and someone told me to rotate the maf. my fuel pressure is good.
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Old 11-03-2007, 09:24 PM
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91hatchgt
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Default RE: Mass Air Flow Sensor

Well, if your fuel pressure is good, and your fuel pump isn't going out, and your injectors are clean, your MAF is clean, and your air filter itself is clean, then you might try rotating the MAF clockwise a little bit to make it run fatter.

When I owned the car, (before the injectors were upgraded) my tuner clocked the MAF just slightly to keep it from leaning out. It barely does anything, but it did help some. Here's a photo, it is clocked just slightly.


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Old 11-03-2007, 09:34 PM
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mustangsho
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Default RE: Mass Air Flow Sensor

Cool well i had the wideband on it today and it was at about 13.5 a/fwot. Do you think i can richen it up a enough by doing it???

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Old 11-03-2007, 09:36 PM
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mustangsho
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Default RE: Mass Air Flow Sensor

The air filter is brand new. The pump pressure is perfect and the amperage pattern is good, and i cleaned the maf today, and the injectors are fairly new
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Old 11-03-2007, 09:37 PM
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91hatchgt
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Default RE: Mass Air Flow Sensor

I don't know, but it doesn't hurt to try. Might try buying a Fuel pressure regulator. They are cheap, bolt right on and you can turn up the fuel pressure with the turn of one screw. They are key to tuning the fuel system just right. Pretty cheap, they can be had for about $70.
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