I'm looking for a diagram that has the vacuum lines for the charcoal canister in my '97 960. There are three lines. One from the tank, one going to a valve that goes to the intake and a third one that is larger in diameter that isn't hooked up on my car. It's pulling quite a lot of vacuum at idle, so this is a big leak. It appears that it should go somewhere on the manifold, but I can't tell where.

I can post a photo if that would help.

Thanks!