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Thread: Pre Full Flash to Full Flash Tune Question

  1. #1
    Junior Member Donovan's Avatar
    Join Date
    Sep 2007

    Default Pre Full Flash to Full Flash Tune Question

    During my recent upgrade to DSP 5 (works great btw), I have noticed that my older tunes used to be roughly 800k and in the newer full flash compatible versions of EFI the tunes are now being saved as roughly 1.4Mb. Is this due to the extra space created for full flashing?

    The reason I ask is that I haven't read anything from my ECM since prior to the time when full flashing was enabled (07 actually) and I was able to full flash back my DSP tune. Am I missing something here? I am hoping that I didn't completely loose my factory full flash by not rereading using a later version of EFI.
    E35A/A40 + DSP5

  2. #2
    Lifetime Member
    Join Date
    Apr 2008


    No you read your tune fine. Your just not gonna read a DSP5 tune off the ECM. Not sure on the Delphi ECMs but from a post i seen here or other site mentions on Boasch that some of the memory space used is writable only. Not readable.

    2007.5 GMT-900 Chevrolet Silverado 2500HD CC/LB LTZ 4x4 Summit White.
    With the LMM Duramax 365hp/660tq, MW7 Allison 1000 6-speed
    EFILive LMM DSP5 Settings, 500HP, 450HP, 400HP,Tow with Turbine Brake, and Stock HP.

    UA Steamfitter, Local 136 Evansville, IN - Remember if you want to play you got to pay.

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