I have taken out the ecm and the entire ecm wirering harness off the car (it's an 85 TPI Z28). Now I have no electrical power going anywere, starter won't turn over...nothing... My question is, after taking all that stuff out, do I need a rewire some of it? I was thinking I didn't need too since the rest of the engine bay harnesses are still there. I've taken a look at the tech article on here about the swap but didn't find much...any ideas?

Thanks!