This much I know: the vacuum line that connects to the fuel pressure regulator (Quad 4) has broken. I don't know where the other end of the vacuum line attaches. When I found the leak, the vacuum line was laying on top of the intake manifold about six or eights inches from the fuel pressure regulator. I have the replacement vacuum line, but I can't find the nipple(?) on the intake. My Haynes manual has a picture of the entire engine compartment and I see the vacuum line I'm working on, but that Quad 4 is slightly different from mine. That picture shows a nipple close to the nipple the MAP sensor uses, but my Quad 4 does not connect there. I have ordered a Chilton manual, which is supposed to have a vacuum diagram, but it may not arrive for two weeks. Can someone tell me exactly where the line attaches? I would greatly appreciate it. I'm sure I'm over looking it.
Thanks, ATL