Ok I don't know what this hose does. Its always been left unhooked. Can someone tell me if I should just leave it unhooked or have it go to vacuum or boost?

I know the first nipple is for the vias (non vacuum) second is for the butterfly valve, but the third (red arrow), I never knew what it does.



Thanks

 

I guess it wasn't that quick...

 

if you have doubts on it, just plug it.

 

i always just left that one un hooked

 

If I remember correctly, that goes to the vacum actuator thingy for the butterfly valves in the lower intake manifold.

In stock form, it should connect to that vacum port on the rail that you have blocked off to the left of the question mark. It then leads to the other side of the IM where another rubber hose connects it to the vacum actuator.

I'm just going off memory so if i'm wrong, someone correct me.

 

I thought the nipple above the brove plug was the vac port for the actuator for the lim valve?

 

thats vacuum for 2000 swirl valves. Dont need it.

I ran that hose attached to the gold nipple next to the vias fresh air port to seal it. (one on the right)

 

Exactly, I just looked at mine and remember that I blocked mine off too after I removed my swirl valves.

 

Always left this open

 

i did too aj... doesn't create a VAC leak by leaving it open does it?

 

Mine is capped from factory

 

Perfect, Thanks!