Results 1 to 6 of 6

Thread: LS1B PCM locked

  1. #1
    Junior Member
    Join Date
    May 2012
    Posts
    13

    Default LS1B PCM locked

    I've searched for hours.

    I took the PCM out of my 1999 corvette along with the V1 interface that was licensed to it, and installed it into a 1980 Corvette with an LQ4

    now when I try to load a tune, or read the current tune, I get a message thet the PCM is locked. I've tried using the EFI live to unlock it, to no avail.

    Any suggestions?

    Thank you
    Last edited by joecar; July 23rd, 2014 at 06:25 AM. Reason: fixed title for easier searching

  2. #2
    Junior Member
    Join Date
    May 2012
    Posts
    13

    Default

    PCM. Dang auto correct.

    Oh well. I'm sure y'all knew what I meant.

  3. #3
    Lifetime Member Tre-Cool's Avatar
    Join Date
    Feb 2006
    Posts
    939

    Default

    and your sure you didn't lock it with a custom key?

  4. #4
    Junior Member
    Join Date
    May 2012
    Posts
    13

    Default

    Yeh. Positive I didn't lock it intentionally.

    I've heard that a low battery, either in the car, or the PC, can trigger the PCM to lock on it's own. Is this correct? I've also read on these forums that it could be a glitch in the EFI software. Is this also a possibility? That would suck if true.

  5. #5
    Lifetime Member Tre-Cool's Avatar
    Join Date
    Feb 2006
    Posts
    939

    Default

    try it with 0000

  6. #6
    Junior Member
    Join Date
    May 2012
    Posts
    13

    Default

    I will. Thanks.

Similar Threads

  1. Locking a LS1B
    By J.Abbott in forum Gen III V8 Specific
    Replies: 4
    Last Post: June 21st, 2013, 08:49 AM
  2. do you need an LS1B PCM ?
    By Boost in forum Gen III V8 Specific
    Replies: 24
    Last Post: February 19th, 2013, 10:39 AM
  3. ls1B PID's
    By racerx004 in forum Petrol / Gas
    Replies: 3
    Last Post: November 13th, 2012, 03:05 PM
  4. CKREF PID For LS1B in v7.5
    By mk13 in forum Gen III V8 Specific
    Replies: 8
    Last Post: July 10th, 2012, 09:40 PM
  5. Trouble with LS1B reflash
    By jbehe in forum Gen III V8 Specific
    Replies: 15
    Last Post: July 2nd, 2011, 01:50 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
  •