ditto what ryan said, if you pull the plug off the ISCV does the car stll.. if so you need to adjust the base idle higher.

also give the throttlebody, ISCV, idle adjuster bypass thingie etc. etc. a damn good clean with carb cleaner as it all gets gummed up pretty easy. we recently cleaned lennie's throttlebody up on his 24v and the idle jumped from hunting at 900rpom to 1800rpm idle it was THAT mingin!