what is this

[Mustangless]

I borrowed this picture from somebody on corral.net
View attachment 309392

That red line that is just sitting there, mine is like that too. What does that go to and could that be a vacuum leak?

edit: Ignore the drawings. He is having a noise he is trying to figure out.

 

[ProKiller]

if its just sitting there and not going to anything on the other end and just open then yes you have a vacuum leak

 

[gcomfx.com]

Goes to your smog setup. If it's removed or the line is cut, you need to block it off.

 

[HISSIN50]

Above is correct.

It is not sitting there but is plugged into a nipple. It feeds the EVR, TAB and TAD solenoids.

 

[Yobi1Kanobi]

mine ran so much better after I capped all that junk up.

 

[SQUEEZE&STROKE]

I thought the red line was for the FPR? Its been a while though...

 

[HISSIN50]

I thought the red line was for the FPR? Its been a while though...

FPR = black and blue IIRC (I've long since replaced those lines on my car so I don't get refreshed too often. I could be wrong).