Results 1 to 4 of 4

Thread: lbz wont go over 2k rpms after flash

  1. #1
    New Member
    Join Date
    Jan 2015
    Posts
    2

    Default lbz wont go over 2k rpms after flash

    Hey guys. Ive been tuning for 7 years with sct and hptuners so I'm still learning how Efilive works. I have a 2007 lbz that had fleece tunes in so a dealership put an updated stock file in the truck. I read the file, converted it to a dsp5 operating system and did a full re-flash. Now, the truck won't go over 2k rpm's. Am I missing something? Thanks for any help

  2. #2
    Lifetime Member killerbee's Avatar
    Join Date
    Jan 2006
    Posts
    1,079

    Default

    Possibly a performance limiting limp mode. Check for codes.
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  3. #3
    New Member
    Join Date
    Jan 2015
    Posts
    2

    Default

    its a 2564 turbo boost control position sensor code. I have it deleted in the tune but it keep showing up

  4. #4
    Senior Member
    Join Date
    Mar 2009
    Posts
    188

    Default

    Did you ever figure it out? I am having a similar issue.
    2002 Chevy Duramax with a few supporting mods.

Similar Threads

  1. Lbz wont connect or give a status
    By johnj in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 3
    Last Post: October 27th, 2013, 11:01 PM
  2. LBZ wont fuel over 70mm3 Help!
    By robo121 in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 3
    Last Post: February 28th, 2013, 07:19 AM
  3. LBZ wont start after flash
    By Farmboy87 in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 4
    Last Post: July 25th, 2012, 09:04 AM
  4. LMM wont start after flash
    By Acoombs in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 1
    Last Post: February 3rd, 2011, 01:07 PM
  5. shift rpms tis rpm or engine rpms
    By 69camaro5speed in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 8
    Last Post: October 25th, 2008, 06:01 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
  •