Paul, How does it run after it warms up. There could be several things going on but the one thing that may be a long shot, but it sounds like the control pressure regulator may not be regulating the pressure on the control plunger and it's rising to high. The other thing I would look at would be the lower adjusting screw on the throttle body lever arm. The butterflies open and pass air in conjunction with how much the screw is turned down. In the rest position the buttlerflies should be closed and the idle speed motor intake tube should be where the air- fuel control unit get's it's air. Also, make sure the idle speed microswitch is working and the adjustment is correct. John Hervey www.special Tauto.com < When I first start my car from cold it idles at 950rpm as it warms up the idle slowly increases to about 1200rpm when up to standard temp it never drops below 1200 rpm. >>