Ok so Ive removed the manifold to find this vacuum line just chillin' and I dont know where it goes. I looked at the vacuum hose diagram from the FSM but it says it goes to the pressure chamber. Well, the pressure chamber already has 2 vacuum lines that are going to hard lines in the spyder web. Does anybody know where this line goes and im curious if the black piece at the end of the line is a broken check valve? Thanks.

 

That's the line to the pressre chamber and yes, that's half of a check valve. That line is the medium blue one on the colored vac hose diagram. Should go through a check valve to the pressure chamber.

 

Heres another photo of the pressure chamber and the two lines coming off of it. Both lines are connected to hard lines like I described earlier. So should I unplug one of those lines that goes to the hard lines? And if so, which one? Thanks. I circled the two vacuum lines coming from the pressure chamber so you could see where they are going into the spyder lines.

 

The one on the right is connected properly. The one on the left looks wrong. If your car is a manual, that tube should be mepty on both ends. Follow the tube and see what's connected to the other side. If nothing is connected to the other side of the tube, someone just screwed it up. In that case, pull the left hose off, get another check valve and connect it back like it should be.