Rick, I've never played with the lines that run back to the air cleaner, so not sure of their routing. But IF I type this right, you should be able to access a diagram of the evap system here:

http://forums.pelicanparts.com/uploa...ControlSys.jpg

(edit) Gosh, it worked...move your mouse to the lower right corner of the pic, then click on the icon that appears to enlarge...this another of those things I printed out for my files...