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Thread: What controls EST_XMSN_DMA (Trans Torque Reduction Spark Retard)?

  1. #11
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    Quote Originally Posted by joecar View Post
    Torque Reduction -> Abuse Mode enables when you go crom P/N to D/R with substatial RPM's... this does is not what you're seeing.

    Look at the tables under Torque Reduction -> Upshift.



    ~ posted by phone ~
    Thanks Joe
    Previously I have left these alone thinking that they are a torque reduction during the shift and not active during "steady state gear". I am using DVT to hold a gear on the dyno.
    Which table affects which gear for non shifting accelerations. ie. Is the 2-3 Shift or 3-4 Shift active during a 3rd gear sweep.

    Zeroing these Upshift tables doesn't alleviate the EXT_XMSN_DMA activity. Attached are the cal and a log.

    Could someone please peruse the cal to see what I may be missing.

    I am completely at a loss with this thing.
    I have tried all I can think of including B6614 setting from 0 to max or 866.
    Please see most recent cal file and log. Please assist.
    Last edited by TurboCamaro; July 2nd, 2017 at 03:40 PM.

  2. #12
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    Quote Originally Posted by joecar View Post
    See post #2 here: https://forum.efilive.com/showthread.php?p=38410

    start at point 5.

    ~ posted by phone ~
    Thank you this is how I was attaching.
    Not sure what happened over the night however I see even my earlier posts have the files attached.
    Thanks

  3. #13
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by TurboCamaro View Post
    Thanks Joe
    Previously I have left these alone thinking that they are a torque reduction during the shift and not active during "steady state gear". I am using DVT to hold a gear on the dyno.
    Which table affects which gear for non shifting accelerations. ie. Is the 2-3 Shift or 3-4 Shift active during a 3rd gear sweep.

    Zeroing these Upshift tables doesn't alleviate the EXT_XMSN_DMA activity. Attached are the cal and a log.
    Attachment 21169Attachment 21170
    Could someone please peruse the cal to see what I may be missing.

    I am completely at a loss with this thing.
    I have tried all I can think of including B6614 setting from 0 to max or 866.
    Please see most recent cal file and log. Please assist.
    Attachment 21172Attachment 21171
    I'll look thru your files... hmm, sounds like something else is going on...

  4. #14
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by TurboCamaro View Post
    Thank you this is how I was attaching.
    Not sure what happened over the night however I see even my earlier posts have the files attached.
    Thanks
    Do you click Add Files (at the upper right)...?

  5. #15
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    Quote Originally Posted by joecar View Post
    I'll look thru your files... hmm, sounds like something else is going on...
    Thanks Joe
    I appreciate it.
    This thing is down about 100hp from where it should be.

  6. #16
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    It seems the solution to the EXT_XMSN_DMA activity is to ignore it. Using the dyno I determined any KR activity stemming from the Knock Sensors to be false knock and detuned the Knock Sensors allowing increase of timing and associated power increase. As the timing increased and power increased the EXT_XMSN_DMA activity disappeared.

  7. #17
    Joe (Moderator) joecar's Avatar
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    Thanks for posting back what you see.

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