This is the rubber elbow that your PCV valve sits in, on the backside of your valve cover (driver side rear corner).  This fits all 2.2 Turbo I from 1984-1987,  and 16v Maserati engines only. 
 
Note: If you have a 1988-1992 Turbo I engine, you will need a Turbo II elbow.  That part is located under our Turbo II section.