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Thread: Memcal Flash Tool

  1. #1
    EFI GearHead ! EagleMark's Avatar
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    Memcal Flash Tool

    Has anyone tried this on a US Memcal PCM? Guys at Delco hacking are really doing some sweet work!

    http://www.delcohacking.net/forums/v...c.php?f=3&t=82

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  2. #2
    EFI GearHead ! EagleMark's Avatar
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    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  3. #3
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    to make use of the flashtool, you MUST modify the algorithm that handles ALDL functions.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  4. #4
    EFI GearHead ! EagleMark's Avatar
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    Still pretty cool! Seems to be working on flash PCM as well... I just didn't have time to read but wanted to link to cool ideas!

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  5. #5
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    I believe this is an extension of work done by montecarslow? on thirdgen.

  6. #6
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    somewhat.... instead of having 4K of NVSRAM mapped from 2000-2FFF, they replace their entire PROM with it... and program it over the ALDL circuit using customized ALDL commands... i believe they made modes 11/12/13, something like that.

    much like OBD2, they also only have the calibration changed when uploading the new tune so that they don't have the possibility of corrupting the algorithm.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  7. #7
    Really cool stuff that I don't completely understand! LOL!

    I'm content with plugging and unplugging an EEPROM. But it's neat to see what others are up to!
    Familiar with 1227747 and 16197427 PCMs

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