I ran the car ragged yesterday with that port plugged. Everything ran as normal so now I have no idea what that line does, or where it goes. Unless someone has a diagram I'll just wait until I see one on the street or on a parking lot and ask if I can take a peek.

Unless someone has a diagram or pics somewhere.

Thanks!

__________________
1960 190D (college car), gone
1995 E300D, 325 k
2019 LEXUS UX 250h (spouse mobile)
2003 Nissan Frontier Crew Cab
2007 Jeep Grand Cherokee Overland 3.0L MB diesel, 185K
1978 GMC Classic Motor Home