Why cant I just supply the factory Tahoe ECM with TPS signal and let the it control the shifting? that's all aftermarket controllers need from the engine. Ive used a baumann in the past and that's all it needed. and I am not so focused on the ls harness controlling it as I am my speedo and cruise working.
1984 c10-its an old truck with an LSX
I posted in your other thread, as for speedo and cruise, I'm a 5 speed guy and deleted all the auto trans wiring from my harness and my speedo and cruise work. But I'm not sure on your theory of running both computes, also you would have to chip the old ecm or your trans is going to shift midway through you power band of the new ls motor, my little 4.8 don't get its power until were the old TBI motor was out of breath and shifting. Just something to think about
To sum things up, its probly going to be less of a headache and possibly cheaper to let the ls pcm, or an aftermarket controller to run the trans.
Last edited by LOWnEASY; 03-31-2014 at 09:34 PM.
where did you wire your vss? if you aren't using the stock computer can you tell me what wires from the las harness you wired into what wires on your truck to keep them working.
1984 c10-its an old truck with an LSX
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