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Thread: Idling at -5 degrees timing=$ thrown away

  1. #1
    Lifetime Member killerbee's Avatar
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    Default Idling at -5 degrees timing=$ thrown away

    ...and is driving us LLY owners bonkers. I know that this is so over-retarded that it represents easily a 30% waste of fuel when idling in gear.

    But it is stuck at -5 when in drive and stationary. It will go to 0 when in Park. None of the tables adjust it.

    I gotta think this is worth figuring out, I know it was requested in another thread, just pleading once again, only because this is so important to fuel savings, and noise level at the drive-thru.

    It's the only thing I want for Christmas
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  2. #2
    Junior Member jpgmtech's Avatar
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    I second the motion!

    This is driving me crazy!!!

    Pleeeeeeeeeeze???


  3. #3
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    guess i never looked at timing at idle in gear. this cant be adjusted?

  4. #4
    Lifetime Member killerbee's Avatar
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    Not with what we have available to us.

    There are so any peripheral functions, that it is impractical to reverse engineer them all. But this one just keeps haunting me. When I order up a higher idle speed, the over-advance issue becomes worse yet.

    I'm sure one of these days, I'll catch Ross in a good mood.
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  5. #5
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    well this is old, but it would be good to get a fix for this. i always have to put it in neutral to lessen the noise level at drive ups and such.

  6. #6
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    well i looked at mine but it isnt at -5* it is -3.2*. i havent tried to change this table though

  7. #7
    Lifetime Member killerbee's Avatar
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    Quote Originally Posted by stacks04 View Post
    well this is old, but it would be good to get a fix for this. i always have to put it in neutral to lessen the noise level at drive ups and such.
    agree

    if you increase pilot qty, this will, in effect, advance timing
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  8. #8
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    The -5* at idle in gear is biting me now.

    I have a very low compression engine I am tuning now and at -5* the engine sputters badly.

    Where the heck does the -5 come from anyway?

  9. #9
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    Quote Originally Posted by Fingers View Post
    The -5* at idle in gear is biting me now.

    I have a very low compression engine I am tuning now and at -5* the engine sputters badly.

    Where the heck does the -5 come from anyway?
    I use B0944 and B0950 and the multipliers.

    15.0 to 1 with -1* cleans up the idle but a bit noisy with much more advance.

    0 was fair but with fuel pressure increases, you know.....

  10. #10
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    But my OS (15141668) on the LLY is ignoring the B0944 values completely.

    The only work around I have found so far is to disable the idle timing by setting B0940 to 600 RPM or less. That forces it to use the base timing.

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