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  1. #1
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    E32 computer - want to use it in my 74 911

    I picked up a E32 computer and connecting cable with leads and want to install it in a custom dash I'm working on for my 74 Porsche 911 widebody. I have the e32 computer wiring digram and pinouts and have made some minor accomplishments powering it up on the bench. Does anyone know if I need to have the dask message panel connected to get it to power up? I hoped to not need to use the dash display. Mainly wanted to use the Clock, trip meter, outside temp maybe the cabin fan timers average MPH/speedo functions?
    I remember reading a function of the computer in controlling theft lock out of the motronic ECU. I'm not sure if i need a feedback loop on the dash display or ECU. I can get the lighting to come on but so far can't get clock display or any LED digits using the main power in leads. Anyone else messed with these for non OEM application?


    Ken

    92-BMW 735iL
    74-Widebody Porsche 911S
    03-Explorer
    81-VW Caddy
    <img src="http://i36.photobucket.com/albums/e31/kwandrey/911-2.gif">


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    huhh, that is a difficult one

    because the OBC (which one do you actually have? there are in the E32 OBC III at the beginning, and OBC IV for all models from around 1988/1989) needs the input from the chip inside the BMW cluster, because that actually feeds the OBC with the necessary data such as fuel tank size, fuel tank level, engine data, and many other things.

    go to my website here
    >links &lots of DIY>Johan & Sean>Electronics>299.960 km problem

    that gives you some info what is all stored in the cluster chip.
    And also the K-factor you need, otherwise it will not be able to calculate.
    Also go on my website to forums>E38 ORG
    there on the right under related links is th complete write down of the OBC functions.

    That is really not an easy task. Good luck

    Even if you do not understand German, visit this site
    http://www.gunnar525.de/
    Gunnar has very detailed instructions how to retrofit the clock, the OBC in an E34 BMW.
    Very detailed, also pics.Shogun E32 Tech Tips: http://twrite.org/shogunnew/topmenu.html

  3. #3
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    ouch -It maybe more than I want to get into

    Thanks for the info. This could get more complicated than I expected. I may be better off putting my efforts into other ventures. KenKen

    92-BMW 735iL
    74-Widebody Porsche 911S
    03-Explorer
    81-VW Caddy
    <img src="http://i36.photobucket.com/albums/e31/kwandrey/911-2.gif">

  4. #4
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    more: http://home.iae.nl/users/bts/obc.htm

    Shogun E32 Tech Tips: http://twrite.org/shogunnew/topmenu.html

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