Dave R.

Had my engine check light come on recenlty and took it to an independent Audi/VW mechanic. In looling over the service report it said "Found Bad Vacuum Line For Combi Valve Actuation, Replaced Vacuum Line" Any idea where this "Combi Valve" is located and what it does?

qfrog Ti20

back of cyl head, part of secondary air injection system.

ModifiedA4

<center><img src="http://pictureposter.audiworld.com/143/vac-lines.jpg"></center><p>

Dave R.

Thanks for the knowledge!

Dave

airwalk

Does anybody have the Legend to this schematic? I would like it for reference. I know it's a lot of parts to list, but I would really appreciate the help!