This may be a simple Q but I cant tell from the descrption tbyrne. What does the TPS actually do? Does it replace the WOT or the window?

 

it replaces the wot switch,

it works by splicing into the existing Throttle Position Sensor in your car, and when it detects 4.3 volts or so, it actiuvates the N20 system.

nice piece, but costly <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

Ryan