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Ur-quattro's Deceleration valve?


What does the deceleration valve do on the 1983 Canadian Ur-q do?
I am trying to clean up some of the unnecessary vacuum lines and was
wondering how important is it?  It sort of looks like a blow-by valve
except it's hooked up to the intake rather than before the turbo.


Martin Pajak


1982 Audi Coupe Turbo (475,000 km)
1982 Audi Coupe Quattro (155,000 km) Coupe with 4kq floor
1983 Audi Ur-quattro (220,000 km)
1986 Audi 4000 S Quattro (360,000 km) with 5 bolt pattern

C.E.O. of examlastminuteallnighterrollthedice inc.