first off, this is my first post here so there's might be board's rule somewhere that I have not acknowledged, so please excuse my ignorant.

here's the question that I have been struggling with for a month now without result:
I'm putting a 91 305 TBI into my 89 2.8 camaro and using the harness and the ECM from an 89 camaro which came with 305 TBI. I've got everything else went in so far ok, but the 15 pins connector (c207), I have no idea where to wire this thing to. This is my first time doing swaping, first, it was much of excitement, it's now my nightmare. Could anyone help me out, I'm greatly apreaciate.

 

You would be better posting this on the DFI/ECM board. C2 connector does a variety of things, IAC control and a bunch of things. A Chilton manual can tell you exactly, but I am pretty sure you can find the pinouts here. Welcome to the gang. Dan