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Thread: 80e will not down shift to 1st when WOT

  1. #1
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    Default 80e will not down shift to 1st when WOT

    been doing some tuning for the new 80E did 2 wot pulls from a roll and it stayed in 2nd until the shift point. Its also overreving. I have it set to shift at 6800 and its going to almost 7k
    here is the tune and log
    4L80.tun
    Log_0233.efi
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  2. #2
    Joe (Moderator) joecar's Avatar
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    Set it to 5000 rpm and see if the shift triggers.

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    For the 1-2 shift? What about the down shift to first?
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  4. #4
    Joe (Moderator) joecar's Avatar
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    A0009 cells out-of-range: fix these first (set them to 9.9).

  5. #5
    Joe (Moderator) joecar's Avatar
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    Did you do this: apply the COS after swapping the transmission segment (if the trans segment was swapped)...?

  6. #6
    Joe (Moderator) joecar's Avatar
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    Is the PCM going into HOT mode...? If so, check that the WOT hot upshifts mph are below the downshifts (should be the reverse)... but I don't think your in HOT mode.

  7. #7
    Joe (Moderator) joecar's Avatar
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    Set D1206 to 95%.

  8. #8
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    for A0009, I'm reading kpa and rpm and all cells are in range
    The hottest I've seen the trans get is about 165 after several back to back pulls
    I loaded a 02 OS with a 6.0 and an 80e then transferred my tables to it. flashed it to the PCM, then did the COS3
    Wouldn't having D1206 to a lower % like it is cause the PCM to use the WOT shift tables easier
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  9. #9
    Joe (Moderator) joecar's Avatar
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    Usually D1206 is set to 95% and D1207 is set to 85%...

    to enter WOT the TP has to cross D1206 going up, and to exit WOT it has to cross D1207 going down.

  10. #10
    Joe (Moderator) joecar's Avatar
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    Hmmm, post a screenshot of your A0009.

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