I got most of my nitrous figured out(wiring the ash tray switch is a bitch!) But I had a ls1 WOT switch so I called nitrous outlet ana wire coming d order a wot switch for my lt1, well o had some questions the next day so I gave them a ring and found out with the zex kit i can just tap into a wire coming in or going from my tps... What color is the wire? I have a 94 z28 engine harness....Thanks!

 

I had the same problem last week when I installed mine. I have a 98 Z and it has 2 gray wires and 1 white wire. I used a volt meter to find the correct gray wire. It should read around .5 volts when the throttle is closed and around 4.5 volts when it is at WOT.