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Thread: E78 PE not following my tunes command

  1. #1
    Lifetime Member samh_08's Avatar
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    Default E78 PE not following my tunes command

    I have a tune and short scan attached below. I can change the PE enablers and values to whatever I want and it seems the ECM just does as it pleases.

    On my LS1 1MB PCM PE kicks in perfectly, every time, to whatever adjustment I want.

    Am I missing something, or is EFILive missing some tables? (I know E78's lack many tables vs E38)
    Attached Files Attached Files

  2. #2
    Joe (Moderator) joecar's Avatar
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    Is PE enabling...? Look at B0156 and B0157.

  3. #3
    Lifetime Member samh_08's Avatar
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    B0156 = Throttle Threshold >> Throttle at 100%
    B0157 = Load Threshold >> Should be close to atmosphere (wide open)

    I believe both of these should be met as the vehicle was wide open from 0-100mph, correct?

    edit: In the attatched log it takes 5 seconds to go into what looks like PE, but then it goes richer than the values I have entered in the tune...?
    Last edited by samh_08; March 31st, 2014 at 02:23 PM. Reason: additional info

  4. #4
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    Try to disable cat protection P0804 and zero out p0168 and p0158

  5. #5
    Lifetime Member Boost's Avatar
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    I got a better one, my tune's commanded PE... CHANGES ITSELF! Too busy to post about it, but I'll get around to it.
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