My cousin recenty found a pipe off of his car causing running problems, its under the throttle body, anyone any idea what should be on it as im no st170 expert and there is no loose pipe present. any help would be appreciated thanks, it is the one that is blanked off with the grey bung.

 

Cuz found out what it was, it attaches to the evaporative emission valve behind the PAS reservoir, hose hanging down all sorted.