ITMONEY

Ok guys I need some help.

So i have an 89 with a 3VZE...doing the EGR/PAIR removal and hardline delete. Im mainly doing this because im installing thorley headers so im just trying to make room and clean things up.

Now my problem, I goofed and cant figure out where these hoses go.

So this is the underside of the plenum. As you can see these two hoses merge into one and run under the plenum.



This is the other side of the pipe that I cant figure out what these hook to.



This is where the hardline originates from...this hooks to the intake tube.



So again, my problem is I cannot figure out where the two rubber hoses go. I need to know this so im sure that I have everything either plugged or re-ran before I put it all back together. Ive dug and searched all over on here but cant find a diagram or an explanation.

Any help is much appreciated!

MudHippy

One of the 2 hoses goes to the "h" pipe shown here.



The other hose goes to an "h" nipple fitting that's threaded into one of the vacuum ports on the right side of the plenum. The pic below shows how my 88 hoses were routed(before I deleted the hard lines).

Though it could be routed slightly differently on yours, it just needs one hose connected to vacuum from the plenum to draw in air through the PS idle up valve(via the other hose that originally connected to the "h" pipe shown above, which originally connected to the "intake silencer").



NOTE: It DOES NOT matter which hose goes where. As long as one of them is connected to vacuum from the plenum, and the other one is routed to fresh air(preferably filtered), then the PS idle up will function normally.