Results 1 to 3 of 3

Thread: 99 Z28, to upgrade OS or not?

  1. #1
    Lifetime Member N0DIH's Avatar
    Join Date
    Jan 2006

    Default 99 Z28, to upgrade OS or not?

    I have seen comments about people enjoying upgrading the OS on the 99-01 Z28's to the 2002.

    What are the advantages? Any drawbacks?


  2. #2
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003


    My limited understanding:

    The newer OS's have:
    - bugs fixed,
    - better resolution in some tables,
    - added new tables,
    - deleted tables that were senseless (Backup VE).

    Also, specifically 12212156 allows you to very simply jump to COS5 (adds NOx and BIG cam in addition to boost from COS3).

    When upgrading to 12212156, you will have to copy each table over, and resolve the few tables that don't map directly (e.g. one axis may have different units, g/s vs g).

  3. #3
    Lifetime Member ChipsByAl's Avatar
    Join Date
    Feb 2006


    On you can download a manual or automatic 1999 file that has all the tables migrated to the 2002 operating system. You'll just need to do a full reflash and go.
    "Trash that carb and get Injected!"

Similar Threads

  1. V1 to V2 upgrade...
    By B8SMAN in forum FlashScan V1
    Replies: 3
    Last Post: October 22nd, 2008, 11:00 AM
  2. Upgrade E-38 OS?
    By Bruce Melton in forum E37, E38 & E67 PFI ECM's
    Replies: 4
    Last Post: June 16th, 2008, 09:45 AM
  3. Upgrade 02 help?
    By Bruce Melton in forum General (Petrol, Gas, Ethanol)
    Replies: 3
    Last Post: April 6th, 2007, 06:46 AM
  4. upgrade OS??
    By ws6togo in forum Custom Operating Systems
    Replies: 3
    Last Post: January 10th, 2006, 07:10 PM
  5. No ETC after upgrade
    By curtbriggs in forum General (Petrol, Gas, Ethanol)
    Replies: 17
    Last Post: October 14th, 2005, 08:35 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