what did you clean your ISCV out with mate ? brake fluid is best, and leave it to soak for a few minutes aswel. i cleaned mine out not long ago, becasue when i was breaking, and going down the gears for junctions, roundabouts etc, it started cutting out, and its not very good crusiing upto junctions and roundabouts, with PAS or brakes lol. it hasnt really made my idle any higher, but it doesnt cut out anymore. i used brake fluid to clean mine, cleaned it up a treat