4L60e Wiring Help Needed

[pjku79]

So, I bought a car with a 5.3L/TH400. I just got done rebuilding the 5.3L and would like to strap it to a 4L60e, but the previous owner removed all of the wiring for the transmission. I found someone that has the trans part of the harness, but I haven't had any luck searching here, or google for a wiring diagram. I assume I will be able to connect the harness to the engine controller and be good to go, but I don't know what goes to what. Hopefully someone can point me in the right direction. Thanks.

[laguna4efi]

Need to know what vehicle/year your engine controller is from. If you send me that I can pull a wiring diagram for you. It might not be that easy though if your trans harness is from a different vehicle/year. It can be worked out, just might be a bit harder than just plugging it in. We'll help in any way we can.

[pjku79]

I haven't bought the transmissions yet, because I was trying to make sure I could accomplish this without too much hassel first. I do not know what year the controller is from, but I will get the part number tonight and i should be able to look it up from there. This is all in a 69 firebird.