As the post says, I'm looking for a vacuum diagram for the lines that go to the back of the engine and to the diverter valve for a 2001 C5. I've traced the problem to that area but can't really see anything. If anyone can supply a vacuum diagram or where I could access one I'd appreciate it. I've got a P0410 code (A.I.R. code) but the pumps okay and so are all of the electrical controls.

Thanks,