DIY TA
10-19-2015, 06:26 PM
I have an 05 GTO/4L65E going into a 79 Trans Am. I have done the engine harness myself and I am stumped by just one wire. It's called accessory voltage and it goes to both the ecm and the tcm. I've posted about it before elsewhere and haven't had much luck. I've been researching it for a long time now with little information out there on it. I have been told to not connect and been told to connect it to keyed hot, so I really need to figure this out so I can start this motor without frying the computers the second I connect the battery. Anybody know any information about this circuit from doing an e40 gto swap? Thanks, Chris.