Alternate MAF sensors

[MikkiJayne]

Ok lets have a new thread on this so I can stop hijacking Superspringer's thread  

Tintin just posted this:



But my AHU Pierburg MAF is completely different to that. It doesn't have a removable sensor - it has a moulded square block on the top.

Are there any other MAFs that are electrically compatible with the AHU / 1Z electronics? I know it'll need software support so that isn't a problem. Do the PD MAFs fit?

Discuss....  :wink:

[shortysclimbin]

The housing is the only thing that changes. you can even do this with your stock sensor which you can remove. Here let me try and make this easy....

Say stock MAF sensor is A and Stock housing is B And A+B=C (the total assembly)

Now you want a bigger opening from the airbox So you go and buy X (MAF assembly from a pd150, vr6, s4, and or R32) X brakes down into two parts Y (the sensor for the above list) And Z (the larger housing housing from X) So X=(Y+Z)

Now what you are going to do is take C-B=A (remove the stock sensor from the stock housing) A is then kept and set aside B is thrown out!

Next you take X-Y=Z (remove the larger sensor from the larger housing) Z (the housing) is kept and Y the maf sensor is thrown out.

Finally, take B+Z= L (Larger MAF sensor) This unit will then need to be calibrated by your tuner.

Hope that helps! Ow and heres a link for the piersburg maf... If you go to use that basically what you do is say that maf is K do K+Z=L2



Hope you like my math http://www.tdiparts.com/catalog/product_info.php?cPath=29_90_31&products_id=243

[MikkiJayne]

Um ok thanks. That doesn't really help at all because my AHU MAF doesn't come apart   :roll:

What I really needed to know was in the last line of your post - the fact that all this swapping of parts is based on the ALH MAF, not the AHU!!

So lets start again... does the ALH removable MAF work on the AHU? Is it electrically compatible or do the plugs need splicing?