I have the race tested TPS switch. Still can not get it to work. I finally set the switch for wide open throttle. Move the throttle to 100% and the red light goes on. Except nothing happens with the nitrous or fuel solenoids. White to TPS, Black to ground, red to power, and pink to the relay. There is power to the relay. The only thing I can think of is that the TPS is not sending the signal to the relay. I hook up my volt meter to the Pink wire, when I engage the throttle the volts stay at 0. Now I am not an electrician but I suppose that if the TPS is sending a signal to the relay it would show some volts. I am lost and ready to rip out the nitrous install and stick it back on the shelf. HELP!!!!!!!!!!!!!

 

Help!!!!!!!!

 

You says theres power to the relay but no power to the pink wire which is comming from the relay correct? Sound slike a relay problem. Wheres the good ole fashioned WOT switch

 

Just an update. I gave up and went to PSP and had Sal look at it. in 2 minutes he figure out what i did wrong. Something like i wired the relay for a positive side switch when the tps relay needs to be wired to the negative side.
Switch the wires around and it works fine now!