follow the idle cable to the throttle body and look where it connects, there is an idler screw that is adjustable where it is attached to the TB. Simply turb ut to the right to increase and in your case turn it counterclockwise to decrease idle. Sorry I don't have a picture for you. If you still can't find it, have some one puch the gas pedal while you are lokking under the hood and you will see where the cable is and where it rests on the screw. Good luck.
__________________
|