I am currently installing a new actuator and I need to know the connections for the vacuum lines. Is the connection circled in the image, is that end supposed to be capped or does it connect to a another line? Thanks for the help!

 

What does your research show?

 

On the Turbo that line plugs in to the area around #4. Can’t speak to the S. I expect the two engines are very different in this area.