Hey, I am not sure if I hooked everything up right, or I have extra plugs, or something is missing from my harness... but anyways..... I have one extra plug from the stock DX harness.... which I think is supposed to be okay, but then I have this square two pronge plug on the back/bottom of the intake manifold, that looks alot like the plug on the map sensor.... so ... can anyone help me out with some info... I have some info on the DX to Si swap, and I have all charts.... but they don't address the two plugs... I can't find the square plug on my DX harness, but its on my Si harness.... so.... do I need to add in a new plug in for the one on the back of the intake, or do I leave it not connected?? please help me....!!!