Ive been talking performance with some folks and one had asked if my Maf was maxed... I don't know because I dont know what that maximum value is. They also said that if it was, to run an AFC. What is AFC? What is the max MaF for an 04 3.8L?

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Fast.Loud.Shiny

AFC stands for Air Fuel Controller.
The Air/Fuel Controller is a micro processor based air fuel calibration device. The AFC performs this recalibration by receiving the Mass Air Flow (MAF) sensor's frequency signal, digitally recalculating a modified MAF frequency value and passing this modified frequency to the Powertrain Control Module (PCM). The AFC can be programmed to apply correction factors ranging from 1% to 255% of the original MAF signal. To elaborate on this, correction values less than 100% cause the PCM to perceive less air is entering the engine and it responds by commanding less fuel be delivered to the engine. Thus, AFC values less than 100 pull fuel from the engine. Conversely, correction values greater than 100% cause the PCM to perceive more air is entering the engine, causing it to command more fuel be delivered to the engine. This means AFC values greater than 100 add fuel to the engine.


I think on the 04+ the MAF maxes out at like 11,500mhz or something like that.

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