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Thread: MAF Tuning a dead stock car?

  1. #1

    MAF Tuning a dead stock car?

    More a curious question than anything.

    Is it common place to tune the MAF of a dead stock car? Are the minor dial ins worth it?

    I was familiarizing myself with the software on my 09 G8 and I found that when I logged MAF HZ vs STFTs I was seeing a +- 4 or so over a wide range . I did a lengthy log and multiplied % half and saw them come in around +- 2 and in many ares +- 1 or less.

    Would that be normal or should my factory tune have been closer than that? (Stock car, Stock Airbox and Clean Paper Filter)

  2. #2
    Advanced Tuner Road's Avatar
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    Normal I have seen them off by more than that it changes with the weather and fuel differences

  3. #3
    So should it be adjusted or left alone? Or irrelevant as its a small error.

  4. #4
    Advanced Tuner Japeatr's Avatar
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    adjust it and add some timing

    384whp/303wtq
    Built 2.0LSJ: TVS w/2.6, 1000cc, Stage 2 cams, custom fuel system, E85, Dual Pass, 3"intake, 3" Catless exhaust, CIA midlength Header

  5. #5
    Senior Tuner Higgs Boson's Avatar
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    It will be off in PE, especially since GM rapes the PE tables.