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Thread: Alternatives to OBD

  1. #1
    Raw Wave lostreception's Avatar
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    Alternatives to OBD

    I have a 1990 vehicle so basically I plan on tracing the wires to my speedometer an other gauges The car does have a computer (as in the one that gm/chevy provides. not a pc) has anyone traced these out and written a program or something similar im assuming if i get the readout on the gauges eg fuel ..... 5volts=empty and 10 volts=full etc... i could make a decent program if it hasnt been done in the past..

    only problem im not a programmer. ive dont some stuff cgi flash actionscript but never vb or c++
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  2. #2
    Maximum Bitrate eugenen's Avatar
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    You can get some data in and out of the chevy computers of that era. There should be a connector under the dash, where you short two pins to flash the codes which has a another pin which is the data line.

  3. #3
    Raw Wave lostreception's Avatar
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    any idea what type speed oil pres etc? i was considering just soldering to the terminals that go to the actual speedometer would that work?
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  4. #4
    Maximum Bitrate eugenen's Avatar
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    Its been a few years since I started researching that so I don't remember, but I know the pinout and protocol is documented on the internet somewhere.

  5. #5
    Raw Wave lostreception's Avatar
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    ill have to check then
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  6. #6
    Constant Bitrate
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    wow.. i wanna do this.... 1994 dodge stealth. obd2 or 1?
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  7. #7
    Newbie Compu-Blazer's Avatar
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    where can I find that software?

    Did a And could not find any freebies for obd1 scan. anyone point me to the right place?


    Thanks

  8. #8
    Newbie Compu-Blazer's Avatar
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    Never mind, found it. thanks anyway http://www.andywhittaker.com/ecu/screen_shots.htm

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