Help with maf rescale.

[red1977]

I just put my 475 on with a 5 inch intake can any one help me with rescaling the maf on my tunes? Just tell me what to do to make it quit throwing codes. I have the dead pedel thing going on, if I try to brake boost it it won't rev past 2, 000 rpms and will not build any boost.

 

[ikeG]

You will have to rescale MAF and also possibly adjust the maf fuel limiters. Use the search, i know i have read a lot about it on here

 

[TLyons90]

Only thing I know off the top of my head is you have to measure the inside diameter of the new intake and also of the old intake and then you will go into the maf tables and there is a way to configure the new numbers for the table to compensate for the bigger intake tube.

For a simpler way, whatever your MAF is at idle now or WOT convert that to a % and copy over whole table.