1995 millenia, miller motor, supercharged.

hey I'm having a problem identifying a vacuum part. It is on the firewall, passenger side. When I purchased the car it had nothing attached on one side and it is a open vacuum leak. One side is directly atached to the ABV solonoid valve. The othe side goes to?????. any help please?
hope these pics work

haven't had any luck with the local dealerships

 

Since that looks like a check-valve there (in white) could it bee some kind of a blow off for too much positive pressure in the system?
I know nothing about the Millenia, but your post and pictures intrigued me.

 

it is a constant vacuum leak

 

So what happens when you plug/block the line?

 

it stops going fffft. he he . also idle slows a we bit

 

Well, if anything else improves, like fuel mileage, smoothness and the like,and nothing seems to suffer, I would say plug it!!And be done w/it. If a definitiveanswer comes to you @ some point in time deal with it then.

 

I am allready getting over 30 mpg on the highway with it open. Tranny seems to shift smoother with it pluged. I know it is not there for nothing. It must need to end up somwhere. Some thing is not getting the vacuum it needs. [:@]

 

Some years' have them, I think. Going by what it looks like, it could be a "breather" tube to enable movement of the ABV, not normally under direct vacuum. If it is, it would indicate that the leak is coming from the ABV.
I'd do a test on the ABV to see if it holds it's position when a vacuum is applied. Best done with a vacuum pump of course but just sucking a bit of tube joined to the other port(s) might show the leak up.

 

Sorry, I'm talking rubbish - thinking of the EGR not the ABV....