I replaced my fuel lines with no issues.
under the hood firewall we have the factory steel lines on drivers side running together. Fuel, brake, and assuming vapor lines.
2 turn from steel to rubber. One is attached to intake on top towards firwall, but the other was just laying there.
Ideas as to where I connect it?


Where they come from

 

My XJR lines from the firewall are as shown below. I don't know if the XJ6 lines are the same as my 95 XJR and the rubber line for mine is connected to the throttle body as shown. Hope this helps!

Throttle body

Fire wall

 

Thanks Ron, appreciate it. But since I'm not familiar with that model, I can only see 2 rubber lines coming up similar to mine.
you said one goes to intake but what is your second one go to? Same as you I have 2 and one is connected to intake other just sitting. I assume they're both going to vape in back. My worry is that where ever the the unconnected one goes there's a open port which explains the minor idle shake I got.

Little perspective. Tip picture. You see wiper motor back end and red dipstick. In that hole is all lines coming up. And you can see one rubber line coming up looping over connected to intake. Thats one.

Pointed to one rubber hose from steel line bundle, connecting to intake

Second hose held that needs a home. In background you can see its twin from steel bundle that is plugged into the intake

 

See page 60

Notice the 2 versions and does not include supercharger or brake boost

jagrepair.com/images/Training Guides/801S - 2000.pdf

 

Thank you Parker. Safe to believe it's the vent hose that needs no connection since the second hose from the back is already connected to the intake.
MUCH appreciated!

 

On the 4 corners of the roof there are drain lines as well as the A / C plenum