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Thread: Auto VE or Calc VET or Auto Maf?!?!

  1. #91
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    Well I'll be damned! I finally got it to work!!!!!!!!!!! Thank you all so much!!!! Now, hopefully I can drive the car soon, with this tune uploaded and I will try to get a more specific log with load applied, ie brakes. Then I will paste the table and smooth it again. At that time I will need to try to figure out how to do the MAF tuning.

    Once again, thank you all for your patience with me!

  2. #92
    Joe (Moderator) joecar's Avatar
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    Do very minor smoothing only... i.e. level out any large spikes or sinkholes.


    On each successive iteration, you should observe the following:
    - the CALC.VET VE map should look the same (i.e. VE will not change much at all);
    - the CALC.SELBEN MAF map should contain values very close to 1.00+/-0.01 (i.e. MAF will not change much at all).

  3. #93
    Joe (Moderator) joecar's Avatar
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    The Calc.VET method does both MAF correction and VE calculation at the same time

    ( note the difference between the words correction and calculation )

    ( correction = multiplied by wideband/LTFT BEN factor )
    ( calculation = calculated using physics IGL equation )

  4. #94
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    A bit ago I loaded up that tune after some smoothing of the majorly spiked areas and went to try some more logging. I didnt even notice that it was coming up as zero's because I did not have the calc.vet pid list loaded...grrrrrrr. So I understand the correction and calculation, however how am I able to flip to which one I want to fix?? So since I just upaded my VE table, am assuming that is my VE correction? How do I load this so that I can complete MAF correction?

  5. #95
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    I should also note I updated what I log, so I now have speed and timing...my KR is really bad at very low rpm's and as they climb the KR goes away. It cuts all the way down to 5 degrees at low rpm, is that normal??

  6. #96
    Joe (Moderator) joecar's Avatar
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    Post screenshots of your new maps.

  7. #97
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    Maybe it just does this because its so low in RPM? This was a full 3rd gear run with brakes applied from idle to RPM. Also, does my new VE MAP still look too jagged? I did the spikes and large drops, but it still doesnt seem right to me.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  8. #98
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    Another KR spike
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  9. #99
    Joe (Moderator) joecar's Avatar
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    Are you doing both VE and MAF tables (VE is pasted-with-labels, MAF is paste-multiplied-with-label)...?

  10. #100
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    Ummm, nope, oops. I did not do anything with the MAF table at all?

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