[Chester B. Stone, Jr.]

The fast idle switch on my coach is on the right side of the dash along with other switches. It increases the idle to 1000 rpm and should be used anytime the coach sits for more than a few minutes. The primary purpose is to prevent unburned fuel from washing the oil off of the cylinder walls. On other coaches I have owned, the fast idle is a part of the cruise control function. In either case, you are prevented from engaging the transmission until normal idle is established. I would be careful with rigging a fast idle that is independent of the transmission.