help needed on vacuum hose
 

hi guys

on my KE the pipe from the inlet manifold to the ISV is a bit crappy and kinked,

i got one off rich R, but the one i got off him has got a small pipe coming off which is the size of a vacuum pipe,

any ideas what its for ?? as my one currently fitted doesnt have this (its not the original audi pipe)

will try and find a pic of the said hose now!