Audi Hiticah manufactured Idle control valve Up for sale is a Very nice Hitachi Idle control valve. This valve fits many 20 valve audi cars. My fitment list shows this should fit most-AUDI 90 AUDI COUPE 2.3 20V IDLE CONTROL VALVE FITS MODELS FROM (1989 to 1995)ALSO FITS AUDI 90 FROM (1989 to 1993) W/ 20 valve 5 cyl engineAUDI PART NUMBER:034 133 455 A Please check the Bosch part number off of your old unit to be sure this is correct for your car, as there are several different types used even among this range. These often get "stuck" at the hot idle position which will cause the car not to idle when ever it's cold, but perfectly fine when warm. some other faults can be noted by a very lumpy idle, or a car that idles extremely fast almost all the time except when cold. These are great to keep as a spare too, they are over $650 at most dealers. This unit is USED but came off of a properly running car. It was cleaned and tested for proper function and will work properly upon receipt. I will only sell AIC's that are clean and have been runtested. Thanks for looking! This unit comes with a 30 day functionality warranty from ePartsland.