Throttle switch

[SOP8920@Siena.edu]

Okay audi-friends,
     I finally got sick of the irratic idle condition in the Q and pulled the
suspect part. First the problem:

Upon returning to idle, at for example a stop sign with the clutch down, the
engine will not come back to 800 rpm. It will stay between 2 and 3k. If I
jiggle the throttle pedal, the idle will come back down to normal. 

Diagnosis: I popped the hood when it was idling high and tapped on the
grey-steel cylinder which resides high and to the left in the engine bay. I
think this has something to do with the idle control ( or so I was told). It
seems to be connected to vacuum lines of some sort. Result: NOTHING.

I tapped on the throttle control switch sitting on the left side of the
throttle body, and voila.. the idle came back down to normal. 

Today, I pulled the switch off. I tried to get it apart, but the Bosche gnomes
have epoxed the pieces together. I noticed that the switch, when turned, emits
and audible "click" at one end of travel, and at the other.. it sticks! 

The part costs about $65 new from Linda. No aftermarket, Bosche original. 
I think I'm going to try and lube the turning portion with a couple quick
blasts of WD40 and see what happens. I am only afraid that it will fry the
swittch though. If it does.. oh well.. here goes $65 and the Q is out of
commission until I get a new one. 

Wish me luck.

Oh and if anybody has the directions to replacing the temperature sending unit
(the one under the upper radiator hose) please send them to me. I need to
replace the unit sometime this week. Thanks alot!

                               -Osman Parvez
                                89 200q
                                Siena College
                                Albany NY