I've been searching since last night and found most of the lines for the tbi unit. the ones im missing is the big one the comes out the back bent to the right. Im also missing the big line the hooks up to the side of the air cleaner unit. Also there is a valve with 3 hoses hooked up to it, its on the driver side, i have 2 hoses hooked up right but i dont know where to hook up the 3 one.. the one that sits by its self on the unit.

bump... still no help

http://www.thirdgen.org/techboard/tb...ram-305-a.html (Anyone vacuum diagram for 305 tbi 91 rs)

Thanks for trying to help. I cant tell if its the same lines im talking about since the pic isnt working anymore. I was told that the small port on the back of the tbi was the map.. the line im talking about is a bent pipe that comes out of the metal ring housing for the tbi. its angle to the driver side of the car. I'm also still missing the hose the goes onto the air filter housing. where does that line there come from.

I just tried the vacuum diagram on the page I gave you and it worked. Try this link http://i71.photobucket.com/albums/i1...carsvacuum.gif

The ring that sits on the the TBI and under the air filter that hose goes to the driver side valve cover. PVC valve goes in the passenger valve cover across from where that other hose goes.