Hi, new here, haveing a problem with a 2008 C109RT. The Idle Control valve on top of the air box has three nipples, one goes straight back to the air box, then there are two more, one going right one going left. The left and right have nothing on them, I know they should have a tube on them, cannot find a diagram. I suspect they should go to throttle body vacuum port (none open). Help please! I have a high idle.