Anyone know what this thing is, or how to know if it is adjusted properly?
 

Location in the engine bay might help a bit

Make and model of car would help too...

it looks like the thing next to the diagnostic port late 944, left fender, inside the engine compartment.

Can't quite tell from that picture. Can you provide a close-up?

That's about close as the camera that I am currently using can focus to it (it was like, 2-3 inches away). It is, in fact, directly in front of the diagnostic port. Although the actual picture is from my 87 924S, my 89 951S has the exact same thing.

looks like part of the emissions stuff.

yea it's one of the control valves for emissions. controls lines that routes vapors to the carbon canister

And so, somewhere in eastern PA, sarcasm died a quiet, and lonely death.

It's OK Rasta, for once, I got it :D:D:D

me too, funny. but when sarcasm does die it will prolly be quiet and lonely

Awesome!http://forums.pelicanparts.com/support/smileys/grin.gif

Some sort of vacuum regulator for the vapor cannister. I have no idea how it is adjusted and don't recall anything about it in the factory manual but never specifically looked. I would be curious myself and this question comes up alot with no good answer other than "leave it alone".

Wild Man, you were quietly shot down. Back up some from what you are taking the picture of. No one can tell what we are looking at as you took too close a picture of the object and nothing else around it.

Cheers,
Larry

That may be the cycle valve.

Better question... can all this crap be removed and how much weight would it save?

Anyone know what this thing is, or how to know if it is adjusted properly?

Factory set.
Very expensive...
Pelican Parts - Product Information: OEM-94411042900

I would not remove.

can it be? yes. all the valves, vacuum lines, carbon canister
how much weight? not much...maybe 5-10 pounds?

is it emissions legal to do so? no
is it emissions legal to have it not function properly? ....prob no also

Click on the "Weight Reduction Spreadsheet"

Car Math

Does OK check emissions? Most definitely not....