96' LT1 from an Impala SS going into a 78' Malibu. My trans is a 200-4r. I've had the wiring harness modified for the swap by lt1350.com and I am not understanding the wiring diagram and these guys suck at customer support. Anyway, my issue lies in the tcc wire and the pnp wire. My 200-4r is already prewired with a converter lockup harness. I'm just trying to figure out how do I get a ground signal to the pnp wire when in park or neutral, and how to get 12volts to the tcc wire when the brake is not depressed. Yes, these are the only instructions I received with my newly modified $300.00 harness. Any sound advice would be greatly appreciated.

 

To get the 12v source to the tcc take test light to test the wires going into the brake light switch near the pedal find which one lights up when brake is not being pushed and goes off when you push it

Those guys at LT1350.com are abunch of jackasses I had a graft harness done by them not only did it not work properly the first time the second time i sent it back for them to check it out and do some work(with me paying) on it. They sent it back still and it still didnt even function properly and they pretty much said that it had to be something else and the harness was fine. Bought a speartech harness and all problems solved.

 

Thanks for the info. I'm a little behind here at reading my emails and catching up but I will be wrenching all weekend long. I'll let you know how it works out.

 

Who did you deal with there? I used LT1wiring.com and never had any problems. I talked to Dana

 

Actually I take that back. I had problems with my relays not working right and they kept falling apart. And my tune is pig rich and my rev limiter is set way too low. Just thought about all that. lol So maybe I did have some problems.

 

Yeah I dealt with Dana also, I shouldve followed my first mind and had PCMAmerica do it, the guy over there(Jeff) is good at communicating and problem solving.

 

yea man i am having problems getting ahold of dana man. i am starting to get frustrated and am considering going to someone else to get my computer retuned

 

PCMamerica.com, Jeff is the guy to contact.

 

Is it correct that I will tie my tcc wire into the wire that carries the 12v to the brake switch?

 

I forgot to mention that I did put a lockup kit on my trans. What does that do for the TCC?

 

how much $$$$ did you spend for the harness conversion (engine+tranny)
Dan

 

the harness conversion was 250.00 for the engine. I didnt go back with the 4l60e trans, instead I put a TCI gutted 200-4R in with a converter lockup harness($60 Ebay).