I recently tried to take my Passat to get it to pass emissions. The check engine light has been on for a while, but I was told by a mechanic in a neighboring county that what was causing the problem wasn't worth fixing. Well, I have moved to a county that has emissions testing, and it cannot pass till this is fixed.
Trouble code is P4011 Sec. AIR System Incorrect Flow Detected.
I took it to a VW dealer, and their diagnosis was that it needs a new combi valve and vacuum lines replaced (due to disintegration) all for the low price of $629! Does this sound right? I don't mind spending the money as long as it truly fixes the problem. Please help!
JCrane1971@comcast.net