was having a spot of trouble with my car, it would hunt around for idle, and recently it started idling really high, from cold and stayed high when it was warm.
i removed the iscv, cleaned that, and also removed the throttle body and adjusted it to 0.25v @ no throttle. (by the pins on the ecu, it was previously at around 0.1v.
when i put it back together, it still idled high, so i closed up the throttle screw, and this had very little effect. but when i unplugged the iscv it dropped to 500 rpm. i then adjusted the CO screw, by a few turns to get it to idle @ 900rpm (adjusted without a exhaust analyser

, so i have no idea what the co level is??)
could it be a fult in my loom, cos when you plug in the iscv, even when warm, the revs jump to 1900 rpm
took it out for a test drive, was wary of going on boost (or is this unaffected by idle and CO, used to rs turbos adjusting anything can mean bang if not done properly)....but it did notice the throttle feels better, less twitchy and they revs dont ever drop past 900 rpm when you slow down, before they used to drop and rise??
please help me guys. criticise me, or help me.
its due for its mot now....thats why i am doing all this
cheers