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Thread: Chip Offsets stock chip?

  1. #1
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    Chip Offsets stock chip?

    Can anyone help with correct offsets and chip type in the stock MEMCAL. I would like to copy several BINs to file and forward them if you want them for the library. Not sure what qualifies to go into the library. Recently found out how difficult some of these memcals- bins are to find. I needed a rare BIN recently and found a local salvage yard lost over a thousand ECMs in a fire. I am lucky there was a BIN in the library collection that worked. Thanks

  2. #2
    Super Moderator Six_Shooter's Avatar
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    The man who says something is impossible, is usually interrupted by the man doing it.

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    EFI GearHead ! EagleMark's Avatar
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    To read stock chips in Moates AutoProm or Burn 1, 2 Flash and Burn software or in TunerPro.

    Chip 2732a 4k bin file (4096 bytes) Chip Address and Buffer Address 000000 -> 000FFF
    Chip 27C128 16k bin file (16384 bytes) Chip Address and Buffer Address 000000 -> 003FFF
    Chip 27C256 32k bin file (32768 bytes) Chip Address and Buffer Address 000000 -> 007FFF
    Chip 27C512 56k bin file (57344 bytes) Chip Address and Buffer Address 000000 -> 00DFFF

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  4. #4
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    How do you know the chip type and file size in the MEMCAL? I noticed a new Sticky on this topic. This would be very helpful for us less proficient. (Challenged) Thanks

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    EFI GearHead ! EagleMark's Avatar
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    I was working on that as well, just got confused as to how to organize it.

    For now you could look at TunerCat website. It has the chip used in each ECM/PCM. See how many?
    http://www.tunercat.com/tnr_desc/ecm_sup.html

    Or just ask, we probably have them memorised...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  6. #6
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    A couple of stock chips. Nothing special.
    ADRH 87 2.8 VIN-W Olds Buick
    ASWY 90 2.5 VIN-E S-10
    Attached Files Attached Files

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    if you have the XDF for a given BIN, you could look at the XDF header settings to see what it is expecting.

    4000 = 27C128
    8000 = 27C256
    10000 = 27C512
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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    Two out of three copies looked good. The one I didn't post has a couple obvious errors like a zero in the middle of a timming table????
    To all... Good info. Thanks

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    huh.... ADRH is a $46 BIN. interesting that the $55 XDF seems to work for it. and FWIW, it's for an A-body with a 4T60.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  10. #10
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    Tuner Cat shows it as $55. I looked at it with $55 and thought things looked plausible.

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    value at 0008 shows $46.... then again, TC lists 5B and 5B7... and there is literally no difference between the two except for per-model specific calibration, so they are the same mask.

    weird that GM would make a new mask, yet the calibration area remains identical.... i actually did a compare of ADRH($46) and ALZR($55) since they're both 87 A-bodies with a 2.8/4T60.... almost all of the differences are in the algorithm. calibration portions are almost identical. interestingly enough, near the end of the calibration, where there is a lot of blank space in ADRH, there is more calibration in ALZR.... so $55 is actually $46 with added functionality.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  12. #12
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    Allot going on for VIN W in 1987. Almost five pages of different PROMS in the book.

  13. #13
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    probably because those early MAF systems were crap.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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    I remember these cars could be a little cantankerous.

  15. #15
    EFI GearHead ! EagleMark's Avatar
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    Quote Originally Posted by RobertISaar View Post
    probably because those early MAF systems were crap.
    Ouch!

    Remember the changing of the mask I went through with $D8 being changed to $85 ? At least when they did that all BCC went from Axxx to Bxxx

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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