Ok, as far as the "RPM" wire (white), i've found and matched that up... so that's good! As I understand the temp sensor in the intake manifold (2 wires, yellow and blue), which I've also matched up and the colors are correct, is for the computer for fuel delivery purposes so i'm going to leave that as is. And as for the temp switch in the cylinder head, i'll just try to use the existing one from the 2.8L because its 2 prong with 2 wires and the 350 temp switch is only a 1 wire and might not be compatible with the gauge IF I can get it to work.
But with all of this being done another problem has presented itself. As is so common with these kinds of engine swaps, since I'm leaving the existing temp sensor in the intake manifold for the (PCM), the intake manifold doesn't have anymore spots to put my new aftermarket (1 wire) temp sensor for the electric fans. So my question is: Is it ok to just put the fans on a switched (+) lead so they come on with the truck and stay on, or do I splice the "1 wire" that would've gone to the aftermarket temp sensor for the fans into the PCM temp sensor (Yellow or blue wire) and have it work that way? Or are there any other suggestions? I know Jeg's sells a temp sensor that slides into the upper radiator hose, would that be a good alternative?
Thanks again guys,
-GMHead