Hello when I swapped out my bad engine in my 96 the new one was out of a 2000 and everything works fine but the 2000 intake manifold has a nipple on the drivers side back of it where the 96 did not. What is that nipple for? I have it plugged off and it seems to be running beautifully but I am curious what it is for. Thanks!!

 

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this is on the Y8 only.

kcoen, the vaccum port you're talking about is for cruise control equipped cars. no need.

 

I missed this^ part.

Correct.

 

Thanks! Car has cruise but is aftermarket and tapped in else ware. Good to know that I am plugging a port that can be plugged.