Contour Enthusiasts Group Archives Forums Modifications Forced Induction Diablo MAFia - How does it work?

Originally posted by ButtonPuncher:

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Originally posted by warmonger:

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So I'm guessing you have to use one of their special MAFs in order to get the 7 volt output scale, then you are rescaling it with electronics to fit back into the factory 0-5v scale?

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Nope, no special MAF required. The stock MAF can put out over 5 volts. It's just that the PCM can't understand anything over 5 volts. The MAFia or Mafextender just scales the voltage down to the 0-5 volt range that the PCM can understand.

$150 for something that can make your stock MAF the size that you need and not waste resolution. Sounds pretty good to me.

BP

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Not me. Sounds like a waste of money.


Especially when you understand that the "MAF" doesn't "put out" any voltage of its own. It has a source/reference voltage that comes from the PCM and it 'does something' from this voltage. Think of the pcm maf wires as ~5v battery, +/- 1 volt and the MAF as a circuit that uses that voltage and returns some portion of that voltage. 7 volts seems out of the range to me.
If the Mafia does something to amplify the signal and then rescale it then perhaps.