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Thread: E38 lean tip in

  1. #1
    Junior Member
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    Apr 2021
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    Default E38 lean tip in

    I searched lean tip in and have been digging for a few dayswith lots of threads that ended with. No clear answers..

    Recently completed a 5.3 turbo swap and this is my first Gen IV forced induction tune.
    I have the VVE pretty. Dialed in,, just a little cleaning up to do, and the MAF is dialed in as well. The problem I'm having is a lean spike for about a full second on tip on with any kind of load
    It will spike to 16.7 to 17 afr then drop to about 12.0.
    I have power enrichment delay to 0.1 and the fueling. Rate to .1 so it should come in pretty quick.

    Is there a table I'm missing for this feature?

  2. #2
    Lifetime Member izaks's Avatar
    Join Date
    Aug 2003
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    352

    Default

    Post your tune so we can look at it (and a log when it goes lean)

    For E38
    Increase B2005 in the areas that you are experiencing the lean spike
    Set B167 to 0
    Set b0165 to 0.0005
    Set b0156 to 5 across the board
    Set B0168 to zero
    2011 VE SSV 419 + CAM + Whipple 2.9FF SC + PPV front struts + Bilstein rear shocks + 6L90E with single piece carbon fiber prop

  3. #3
    Junior Member
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    Default

    Attached are a quick log and tune

    Let me know if anything jumps out at you.

    Thank you
    Attached Files Attached Files

  4. #4
    Junior Member
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    Apr 2021
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    Default

    Quote Originally Posted by Autovation View Post
    Attached are a quick log and tune

    Let me know if anything jumps out at you.

    Thank you



    Just checking back in to see if anyone has had a chance to take a look.
    I've played with what I can but no luck

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