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Thread: T56 reverse lockout options with TBI PCM

  1. #1
    Fuel Injected! CDeeZ's Avatar
    Join Date
    May 2012

    T56 reverse lockout options with TBI PCM

    So I've been running a T56 behind my TBI 360-incher for about 5 years now and I love it. I have never hooked up the reverse lockout. One way I've been considering hooking it up is to a toggle switch, which would work. However, if it is possible to replicate what the factory did, I'd like to do that. My understanding is this: on a T56 equipped vehicle, the PCM would lockout reverse based upon a certain VSS. Can the TBI PCM be made to do something like this, without a ton of hassle??

    PCM is '7427

  2. #2
    Fuel Injected!
    Join Date
    Sep 2012
    I see where people have tied it to the brake light switch and others have used this
    Last edited by Dewayne_S; 02-26-2013 at 07:25 AM.


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