I just finished my low budget swap and I have two problems: 1) I have an extra 6-pin connecter from my VX ECM wiring harness that the Z6 engine harness doesn't use. I figured out that 2 of the wires are for the VX's EGR valve. Anyone got a clue? Should I care? 2) The engine lopes at idle from about 1800-2500 RPM. Someone said it's the ICV leaking. I do not have a vacuum leak and I didn't mess with the IM when I did the swap. Anyone else have any ideas? Thanks!