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Thread: Not reading DTCs

  1. #1
    Junior Member jtaylor111's Avatar
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    Default Not reading DTCs

    Well I have updated my V2 the other day. I had a few issues but its working now. My check engine light is on and has been on for a lil while( I know what it is and the reason I update was to fix that problem), but just for s**ts and giggles went to read the DTCs and the V2 told me no Dtcs. Whats up with that, I know what codes are there but my V2 wont read them. I cleared em and the check engine light flashed like it cleared em(like it would do before). So why is the V2 not letting me see them?
    2008 GMC Sierra 3500
    46" Michelin XL
    2.5 Rockwells, 4 link and Coilovers

  2. #2
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    Im haveing a similar issue. although i have not figured out why the dtc is being set off i can clear the code with my v2 but on every start up it comes back. but... the v2 says no codes detected.

  3. #3
    Joe (Moderator) joecar's Avatar
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    Which version of bootblock/firmware is in your V2...?

  4. #4
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    as of right now i cannot tell you because my v2 is on land and i am offshore working in the gulf of mexico. the last time i updated was probably around june. has a new version come out?

  5. #5
    Joe (Moderator) joecar's Avatar
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    Yes, there is a newer version. See www.efilive.com/downloads.

    Read the readme.txt file in C:\Program Files\EFILive\V8.1\...

    If you haven't already updated from the old 2.4.x bootblock to the new 2.5.x bootblock,
    then read the readme.txt several times and understand it fully before updating,
    this will save you from falling down.

  6. #6
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    thank you i just looked up in the firmware updater and it looks like im running v2_4_72.ffw. i wasnt sure if i shoud update to the 8.1 or not i was thinking it was beta

  7. #7
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by chamlin2 View Post
    thank you i just looked up in the firmware updater and it looks like im running v2_4_72.ffw. i wasnt sure if i shoud update to the 8.1 or not i was thinking it was beta
    Read the V8.1 readme.txt and understand it fully brefore starting... it will save you any problems.

  8. #8
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    its says i need to install v7.5.4 first is this correct? i have v7.5 already installed but not v7.5.4 lol

  9. #9
    Joe (Moderator) joecar's Avatar
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    First update V7.5 and V8.1 from here: www.efilive.com/downloads.

    After you install V8.1, there is a readme (see link below) file that tells you how to update your V2 firmware/bootblock for BBL...

    Read the readme several times and ask questions before going ahead with the V2 firmware/bootblock update procedure...

    the V2 firmware/bootblock procedure is easy but has many steps... you can get fouled up if you don't understand the readme.

    Cheers,
    Joe

    See the readme.txt attached to post #52: showthread.php?t=8794&highlight=readme&page=6

  10. #10
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    I sure appreciate all your help. its hard to keep up with everything when you wpend most of your time out at sea. lol thanks again

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