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Thread: Plase help to identify chip

  1. #1
    Fuel Injected!
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    Plase help to identify chip

    Hi.
    Again i`m super new here.

    looking for cross reference or any info on replacement chip.
    I cannot find any info about on the internet.

    014
    32500
    AB8804B

    Which replacement chip should i use.
    Came out of 1227747

    thank you in advance.

  2. #2
    Administrator
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    Hello.

    The 1227747 used a 2732 or 2732A eprom. I don't believe that eprom is manufactured today. You might still be able to find someone selling "pulls" which are good, used eproms. Unfortunately I haven't dabbled with a 7747 for years.

  3. #3
    Electronic Ignition!
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    Are you looking for the chip type to re-program for another vehicle or are you looking for this chip type with the original program? Do you know any proper details of the vehicle the chip came from?

  4. #4
    Fuel Injected!
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    It's marked 350 Chevy on top of the ecu. It's random purchase. Looking to load 7.4l program for my conversion.

  5. #5
    Fuel Injected!
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    Quote Originally Posted by mOskit View Post
    Hi.
    Again i`m super new here.

    looking for cross reference or any info on replacement chip.
    I cannot find any info about on the internet.

    014
    32500
    AB8804B

    Which replacement chip should i use.
    Came out of 1227747

    thank you in advance.
    AMUN is a 305/TH400 calibration for a 7747 ecm.

  6. #6
    Fuel Injected!
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    You can find them on eBay, look for 2732A.
    1973 K-5 Blazer, TBI 350, TH400, 1 ton axles & 38" SSRs'
    1975 280Z, TBI 350, 700R4
    1953 M-38A1, TBI Buick 231
    1951 Ford Panel, 5.3 with 4L80E

  7. #7
    Super Moderator Six_Shooter's Avatar
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    A better option for "chips" to use in a '7747 is to use a 28 pin adapter and use SST27SF512 or similar EEPROMs. The adapter which can be bought from moates.net or made DIY if you're handy with a soldering iron, sets the access address of the EEPROM through hardware so that the '7747 can read the 28 pin EEPROM.
    The man who says something is impossible, is usually interrupted by the man doing it.

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