Results 1 to 4 of 4

Thread: Decel Downshift

  1. #1
    Lifetime Member
    Join Date
    Nov 2007
    Posts
    631

    Default Decel Downshift

    Can CAX files be used for this

    http://forum.efilive.com/showthread.php?t=12345

  2. #2
    Lifetime Member 5.7ute's Avatar
    Join Date
    Oct 2006
    Posts
    1,840

    Default

    Quote Originally Posted by L31Sleeper View Post
    Yes, this is exactly what the cax files are for.
    Unfortunately you need to know where in the tune file these tables are to build the cax, which can be a monumental task. I am sure if MICK has any idea on where it is he might post up, though I think breaking into his wifes VY V6 pcm is taking precedence at the moment.
    The Tremor at AIR

  3. #3
    Lifetime Member
    Join Date
    Nov 2007
    Posts
    631

    Default

    how do you know where they are in the tune file if Ross doesn't give
    us anything to modify ??

  4. #4
    Lifetime Member 5.7ute's Avatar
    Join Date
    Oct 2006
    Posts
    1,840

    Default

    Quote Originally Posted by L31Sleeper View Post
    how do you know where they are in the tune file if Ross doesn't give
    us anything to modify ??
    The million dollar question.
    One method is to compare a bin file where a modification has been made in this calibration with another tuning suite where this cal is defined, to an unmodified one using a hex editor. This will give you the addresses in the bin file where this information is stored. Then it is just a matter of working out the scalars etc.
    The Tremor at AIR

Similar Threads

  1. Brake downshift
    By L31Sleeper in forum 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)
    Replies: 11
    Last Post: February 18th, 2010, 05:31 PM
  2. Max KR on 4th-2nd Downshift
    By Denaliano in forum Gen III V8 Specific
    Replies: 0
    Last Post: March 16th, 2008, 12:23 PM
  3. 3rd to 2nd downshift trouble
    By kjohns18 in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 16
    Last Post: November 11th, 2007, 02:42 PM
  4. 4th to 2nd Downshift (Automatic)
    By TNTFEDZ in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 3
    Last Post: May 18th, 2006, 01:19 AM
  5. A4 downshift double surge???
    By SSpdDmon in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 1
    Last Post: June 24th, 2005, 08:00 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
  •