'91 350SD ARV - Is this it? Also an EGR vacuum hose question...
 

I'd like to disable the ARV on my 350SD, so I want to confirm that I am looking at the right thing. Is this it? (See attached jpg) Should I just pull the vacuum hose and plug it with a golf tee? Any advice is greatly appreciated. (As many details as possible are also more than welcome!!)

Also - my EGR is now gone (temporarily, of course - for testing - thanks to Brian C.'s testing kit:D ) but I'd like to make sure the remaining vacuum connection is plugged. My mechanic removed the remaining EGR vacuum hose, but I'm not sure he plugged it at the source. So, where did the EGR vacuum hose originate? I'd like to know so I can track it down and make sure it is plugged at it's source.

If I'm way off base, someone PLEASE let me know! Thanks!

That's just one of the solenoids for it. The ARV is on the turbocharger itself I recall.

The trash you pointed is easily removed. Follow the thick black line and pull it out from the firewall, it's only a fresh air tube. Then trace back to the side where the AFM is at. Just keep tracing and removing accordingly. Revert to my pictures as seen here.



http://img.photobucket.com/albums/v4...semissions.jpg

http://img.photobucket.com/albums/v4...AFMBypass1.jpg

http://img.photobucket.com/albums/v4...DLVacLines.jpg

I would just plug the line on the end that attaches to the turbo. much simpler