by Rollin » August 18th, 2012, 9:51 pm
Depends on what is going on as to why it might be holding too many revs.
If the throttle body was full of crap someone may have adjusted the base idle (via the set screw) to make it idle normally rather than too low.
If that's the case you'll need to back the set screw off slightly to get the car to idle normally with the idle control motor plugged in (there is a proper procedure for this, buy a gregories manual or google it).
If it's idling high because you've forgotten to put something on and now have a vacuum leak, put the thing back on so it idles normally.
The computer may also have 'learned' that the throttle body was full of crap and has been compensating, in which case it will probably settle down after a few days of driving, and the computer 'learns' that the throttle body is flowing plenty of air.
If it's an EA-ED and you have put the idle control motor on the the throttle body facing the wrong way it will idle high as well. Not sure if the same happens on EF-AU.

Look at your car. Now back to mine. Now back to yours. Now back to mine. Sadly, yours isn't mine. But if you stopped buying dodgy cars and bought an ED, yours could be like mine. Look down. Back up. Where are you? ...You're on BoostedFalcon, reading the signature your signature could be like! Anything is possible when your car looks like my car... I'm on a computer.