Well I tried hooking just the blue wire out (VTEC output I believe) and I *think it was engaging. It was not audible through the sound of the exhaust, but I could hear an electric whining/buzzing sound that was familiar to me (from when I had my 93 EX coupe) So maybe vtec was engaging? The only other problem is I cannot get the fields controller to remember where I want it to engage. It always has tec cross-over point set to where my rpm's are at currently. Is there something I need to ground possibly?