My 03 jcw hasnt got a line connected to the fuel psi regulator. Theres a nipple on the bottom but no vacuum line hooked up.. is there somthi g that needs to connect to it or is it just a vent? If a vacuum line goes there were does it come from? Thanks

 

Incase it helps,yes it appears to be oem fuel psi regulator.

 

Plug it in....lol.
A vacuum line is a vac line...should be an open one...luck the car is a running, no codes.

 

Oh i do have codes lol. Just found this today. Previous owner dropped in new engine and left alot of **** unplugged. I bought a vac t and hooked it up. He used the line for the boost gauge

 

Ouch....
And we sometimes wonder why some of these cars have issues.... Lol.
Congrats on finding it!!

 

Thanks. Now i can finally smog it.