Any of you have access to dealer vacuum diagrams, or own a gm with the 3.5?

[Browning]

My sister 99 olds intrigue 3.5 has an unconnected vacuum hose and I am not 100% sure where it goes. I have found two possibilities. One is a port on the TB with has a cap as if it is factory done. The other is on the end of the intake plenum on the passenger side. While this hose has just enough length to attach there, just about every image of this on good show it headed towards the driver side, but with the engine covers on it's hard to see where exactly.

 

Here is a picture of the vacuum.

http://i.imgur.com/k6Z5vCd.jpg

 

It looks to come from the underside of the body so I am assuming something to do with evaporation canister?

 

The one vacuum I have found that has a screw plugging it off which is on the passenger side of the engine. Notice the vacuum line is in the pic.

http://i.imgur.com/nXvkG4E.jpg

 

I googled quite a bit today and most images of this motor showing the vacuum as running to the driver side, as shown

http://i.imgur.com/yMYpxBC.jpg

 

I have found this one that shows like maybe it runs to the port that is blocked off. Also notice lack of clip on firewall, like the one has above. Possible they had different setups on some models?

http://i.imgur.com/F4DNRUt.jpg

 

Since it is not my vehicle I'd like to be 100% sure before I hook it up there,in case for some strange reason it starts running like shit on here while I am not around since she lives an hour from me. If it does run to the canister, is there any reason why some one would have blocked it off?

[Browning]

and I know that was probably hard to read. I wanted to type it as fast as possible so I can stop thinking about it lol