NX Kit not working... NEED HELP!!!

Ok, i had my NX kit hooked up and working about 2 months ago. It worked for the first 2 bottles. then i didnt use it for about a month. Just last night i had my bottle filled and went to use the nitrous but it didnt work. So my friend said that my FPSS doesn't do anything and that i didnt need it. So he bypassed the FPSS by putting both wires on one side of it. I went out and tested the kit and it worked. I put my spare tire and such back in my car from last night because i had it out for a weight advantage, i went out to test it again, it didnt work.... I dont understand. i didnt change or touch anything. What could it be? I was thinking either my WOT switch could have went bad or my Window Switch could have went bad. I checked all of the wiring and everything looks good. I'm just frustrated....

Cliff Notes: NX kit not working. What could it be? WOT Switch, Window Switch, Solenoids? Thanks...

sorry wrong forum... Should have been in the power adder forum... just seen that...

Thanks very much for your input..... I was checking the wiring again and i didnt want to have to go back in to the passenger side kick panel to check the wire for the window switch but i figured if any wire was bad it would be the hardest to get to. So i checked that wire and found out that the connection was bad. I used an inline connector to get power from pin number 104 from the ecu. and connected the white wire from the ECU to the inline connector as well, but i used to big of an inline connector. So i bought the right size inline connector and it works just fine now. I also reconnected my FPSS. Thanks again....