546 stroker with tbi 7427 ecm and 4l80e
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500, 472, 425, 368 Discussion, 546 stroker with tbi 7427 ecm and 4l80e in Cadillac Engine Technical Discussion; how do i hook up all of these speed sensor wires its going into a 92 cadillac that had 5.7 ...
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    chevrolac is offline Cadillac Owners Member
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    546 stroker with tbi 7427 ecm and 4l80e

    how do i hook up all of these speed sensor wires its going into a 92 cadillac that had 5.7 tbi and 700r4 which wires on 7427 ecm for input and output sensors have to be hooked up and do i have to hook up governor control and how does it work

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    chevrolac is offline Cadillac Owners Member
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    Re: 546 stroker with tbi 7427 ecm and 4l80e

    anyone know anything about the 4l80e

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    jayoldschool is offline GM RWD V8 addict
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    Re: 546 stroker with tbi 7427 ecm and 4l80e

    The TBI computer can't control your 4L80E. Cheapest solution is to get the transmission controller from a Vortec equipped 4l80e trans van (the trans control unit was separate). Not sure on years, but a google search will turn it up. Other than that, your other option is an aftermarket stand alone controller.

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    Re: 546 stroker with tbi 7427 ecm and 4l80e

    Quote Originally Posted by jayoldschool View Post
    The TBI computer can't control your 4L80E. Cheapest solution is to get the transmission controller from a Vortec equipped 4l80e trans van (the trans control unit was separate). Not sure on years, but a google search will turn it up. Other than that, your other option is an aftermarket stand alone controller.
    Also the diesel had a separate controller.

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    chevrolac is offline Cadillac Owners Member
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    Re: 546 stroker with tbi 7427 ecm and 4l80e

    the 7427 ecm can control 4l80

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    drmenard is online now Cadillac Owners Enthusiast
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    Re: 546 stroker with tbi 7427 ecm and 4l80e

    Here is a copy of a post from another board that could be something to think about..."You'll save a lot of time and money by sending that 7730 ECM to Dynamic EFI and get one of his EBL conversions.
    Then you'll be able to program it with a laptop. No more chips. Much, much better. All the Caddy guys on the
    GMCMH internet group are going that way." Don't know if they do your ECM

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    chevrolac is offline Cadillac Owners Member
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    Re: 546 stroker with tbi 7427 ecm and 4l80e

    thanks for the info but i already have the 7427 ecm working with the 4l80 trans except no overdrive but i think its just the wiring going to ecm from trans has a bad connection maybe and i already have an ostrich emulator burn1 etc.

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