Results 1 to 10 of 20

Thread: 06 gmc envoy p12 pcm issue

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #15
    Lifetime Member Chevy366's Avatar
    Join Date
    Oct 2006
    Posts
    1,594

    Default

    Go to "EFILive Explorer" with controller plugged into desktop/laptop, click on tab marked "F9: Config Files" and "Format Config", then close that and open EFILive Scan and Tune>F5: BBX and do the setup for P12 again> "Program", "Config file" gets rewritten. Try again.

    If there a faster way/less steps to do this, if anyone knows please post it here.

    As long as EFILive can see it it is probably recoverable with a "Full Flash", has to have complete OS before you can do "Calibration only".

    Bench Harness -- http://download.efilive.com/Tutorial...20Tutorial.pdf

    (EFILive Staff) On the Harness, if it denotes 4&8 on a pin out, that means 4 on the V2 to 8 on the PCM correct ?
    Last edited by Chevy366; January 2nd, 2015 at 12:22 PM.
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

Similar Threads

  1. P12 PCM file
    By Chevy366 in forum IL6,IL5,IL4 Atlas Engines - P12 PCM
    Replies: 12
    Last Post: June 29th, 2009, 09:28 AM
  2. Part # for P12 PCM?
    By ScarabEpic22 in forum IL6,IL5,IL4 Atlas Engines - P12 PCM
    Replies: 3
    Last Post: January 30th, 2008, 05:32 PM
  3. Looking for PCM P/N for L21 454 (99 P12 RV Chassis)
    By N0DIH in forum Vortec V6/V8 Specific
    Replies: 23
    Last Post: August 20th, 2007, 04:54 PM
  4. Reading the P12 PCM
    By GMPX in forum IL6,IL5,IL4 Atlas Engines - P12 PCM
    Replies: 0
    Last Post: March 18th, 2007, 10:48 PM

Posting Permissions

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