High idle, sticking throttle, throttle body questions

[SJ]

I figured out what the dashpot is for . .. prevent stalling behavior when
the throttle is slammed shut.

Here is a good link for idle related problems. Below that is a quote on the
dashpot from the web page.
http://www.saabcentral.com/techhelp/c900/idling_problems.php

7. What about the throttle dashpot?
If you have a dashpot which slows the closing of the throttle set it as
follows:-
As for the almost stalling when you let off the gas: I have just recently
come
across that problem myself. There is a small diaphragm-like actuator that
touches the throttle linkage called the deceleration dashpot. The purpose of
this is to allow the rpm of the engine to come down before slamming the
throttle
plate shut and causing that "near stalling behavior." Once the engine has
settled, the throttle will then fully close. If you twist the throttle with
your
hand then let it spring back, you should see this actuator stop it just
before
the idle screw and hold it for a second or two. If it doesn't hold it, it
could
either be 1.) Ruptured and in need of replacement or 2.) Out of adjustment.
The
way to adjust it is to adjust it in or out until when you let go of the
throttle
just as described above, there is a 2-3 second delay before the throttle
completely closes. It is some times hard to see such little movement to make
sure its working so try listening closely and you will hear the throttle
positioning sensor click 2-3 seconds after releasing the throttle. This all
of
course while the car is not running.

SJ
85 Dodge PU, D-250, 318, auto
85 Audi 4k - - sold but still on the road
88 Audi 5kq
90 Audi 100q