Yes, Paul, you can clean the idle control valve, however the mechanic
should have done that before installing. Just unhook the wires and pull
the vacuum hose and wiggle it out, then use a solvent ( I used "carb
cleaner") to clean it inside and out, reinstall. About 15 minutes. Could
also be the idle stabilizer control unit, located behind the right tail
light. This unit can be repaired if you can locate the bad part (diode,
capacitor, etc.) and replace it by soldering a new one in. You can check
the idle stabilizer by removing it with the ignition OFF, then start the
van, it will not idle when cold, but will after a few blocks. If it
doesn't "race" at the stop light any more, then you have found your
problem. New idle stabilizer control units run around $200 +. Iv'e been
running without one for several months.

Steve and Jo Ann Wacker
San Marcos, Ca.
90 Carat
86 Syncro
86 Audi 5000 CS Quattro

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