Hey guys, I am looking to plum the vacuum lines for my 2.3l engine that I just installed, and I found a vac diagram, but I'm a bit confused as to the function of some of the lines. Here is the diagram: Name: 2009-08-05_074507_vac_diagram.jpg Views: 99 Size: 73.5 KB
I'm wondering why there is a vacuum line routed from the intercooler to the vacuum tree (shown in green) I see it has a check valve in it, but I also don't know which direction that is supposed to be facing. Anyone have any hints?