Page 3 of 3 FirstFirst 123
Results 21 to 23 of 23

Thread: 4L80E segment for OS 09379910

  1. #21
    Member
    Join Date
    Nov 2009
    Posts
    52

    Default

    I have a new question. When tuning WOT A4 shift points, is there a way to set it up to shift by engine RPM only? Can I set D0910, D0915, and D0920 to unreasonable values and force the PCM to use only D0940,D0945, and D0950? Also for manual hold, I assume I can set D0913 and related so that in manual 1 and 2 the PCM will never command an upshift.

  2. #22
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,192

    Default

    To trigger a WOT upshift, both the WOT MPH and WOT RPM have to be met...

    if you set the WOT MPH to a lower value, then the WOT upshift will trigger on the WOT RPM...

    e.g. if D0940 is 6000 rpm and this equals 40 mph, then set D0910 to say 30 mph.


    To always hold manual 1st, set:
    - D0913 to max,
    - D0918 to max.

    To always hold manual 2nd, set:
    - D0914 to zero,
    - D0919 to max.

  3. #23
    Member
    Join Date
    Nov 2009
    Posts
    52

    Default

    Thanks, makes perfect sense. My truck did not get tuned Saturday. Hauled it out there got everything set up and strapped down, then the Dyno jet computer would not power up. I left it there, maybe get tuned thurs.

Page 3 of 3 FirstFirst 123

Similar Threads

  1. 4l80e segment swap!!!
    By hyderm87 in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 9
    Last Post: May 14th, 2009, 02:28 PM
  2. 4l80e segment swap!!!
    By hyderm87 in forum Custom Operating Systems
    Replies: 1
    Last Post: May 12th, 2009, 02:29 AM
  3. Segment swap...Q's???
    By WHYTRYZ06 in forum General (Petrol, Gas, Ethanol)
    Replies: 1
    Last Post: November 6th, 2007, 06:14 PM
  4. Looking for a stock 09379910 OS.
    By Redline Motorsports in forum Gen III V8 Specific
    Replies: 8
    Last Post: March 20th, 2007, 09:29 AM
  5. Need Stock OS 09379910
    By superls1 in forum General (Petrol, Gas, Ethanol)
    Replies: 7
    Last Post: September 11th, 2006, 07:58 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •