When I turn my ignition onto the accessory positon I hear a clicking noise from under the hood. I go and look and it's the Vacuum Solenoid switch. I physicaly touch it and you can feel it pulsing with the clicks. Anyone know why this would be happening? What does the switch do and should I replace it?
This just started after I got home from a nice ride, so it's all new. The car still runs great. Just to make sure i have right one, its the one with 2 red wires going to it.

 

adjust your TPS, not sure why it clicks like that but when messing around with the TPS on my GSL-SE it stopped..