Question about 1997 Volkswagen Passat
I have a 1997 VW Passat with a trouble code of 16795 P0411 Sec. Air Inj. Sys. Inncorrect Flow Detected. What is the part or sensor that needs replaced?????
Both my 97 Passat and my wife's 99 Passat were throwing the same OBD codes you listed.
Both VW's had the same problem. There is no "quick" solution for the problem. I can tell you what I found, what I had to do and how I repaired both vehicles so they no longer throw this OBD error code.
I removed the black plastivc AIR pump and found that three of the six aluminum rivets which hold the AIR pump impeller housing together had rotted off so the case was leaking air. I went to a hardware store with one of the aluminum rivets I had removed from the AIR pump and bought six brass machine screws and brass nuts. I gouged the aluminum rivets out and replaced them with the brass machine screws.
After I had replaced the AIR pump in the VW, I cleared the codes and ran the diagnostics again.
It still threw the same codes!!!
Next, I removed the plastic top engine cover from the VW engine (VR6) and located the many air solenoids hidden under the cover. I went to a local NAPA shop and purchased an eight foot length of their smallest gauge neoprene gas line (1/8 inch ID).
I carefully removed each piece of rotted VW vacuum line from the air solenoids and replaced each rotted section with lengths of the new neoprene gas line. I had to follow out each of the old vacuum lines and replace them because they were badly deteriorated. This took about five hours to accomplish.
I replaced the plastic engine cover and connected up my cable from my laptop to the VW's computer port, cleared all of the codes and ran a new scan. This time the scan was clear! Woo Hoo! Apparently, the problem was both the leaking AIR pump and faulty, deteriorated (cheap) Volkswagen vacuum lines.
It was well worth the effort. My driveway has now become a bonafied VW repair shoppe.
Posted on May 16, 2009
Bring it to local garage
Posted on Nov 07, 2008
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 13, 2015 | Cars & Trucks
Apr 15, 2015 | Cars & Trucks
Nov 27, 2014 | Cars & Trucks
Nov 11, 2011 | 2003 Volkswagen Beetle TDI
Nov 15, 2010 | 2002 Volkswagen Passat
May 16, 2010 | 1999 Ford Mustang Cobra
Apr 28, 2010 | 2000 Volkswagen Jetta TDI
Apr 16, 2010 | 2002 Volkswagen Passat
Feb 09, 2010 | 2004 Volkswagen Passat
Oct 13, 2009 | 1999 Volkswagen Passat
886 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: