Nipple on turbocharger

tdehoff at tdehoff at
Thu Jun 2 14:38:32 EDT 2005

I have been bothered by, what looks to me to be a nipple for a vacum line on the top of the turbocharger. The nipple is pointed towards the firewall in my car.  What's the purpose of this nipple? and do I need to be concerned that mine is not connected to anything. 
91 200 143K

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