I got a nos15974 progressive controller http://www.nitrousoutlet.com/catalog...roduct_id=1539 and Im having some wiring problems. 1)does the micro-switch go from the controller to a ground or a swithed 12volt? becouse it already has a trigger wire. 2) on the solinoids one gos to a 12v relay and the other to controller? or does it go from ground to solinoid and get its positive from the controller?

im only using it for 1 stage not 2

 

you can do away with the microswitch and just tap into your TPS wire for a much better and cleaner install, imo. on the solenoids, it would just be wired how they are already with the relay giving them 12v but instead of grounding the solenoids to the chassis, you would connect it to the progressive controller. i beleive its a red and blue wire for the stage 1 and 2? those are grounds that the controller will activate when your nitrous engages.

 

do you know what color wire I tap into?

 

on a 99 it should be blue

you TPS should have 3 wires...with a volt meter 1 wire will show constant 5 volts, one will be constant 0 volts, and the one you need to tap into will show ~0 w/the throttle closed and ~5volts at WOT