hi anybody that could help me with 2 fault codes P1411 and P1423 my MIL light is on and i went to autozone for free check out and this two code came on any idee what they are.thanks and by the way it's a 2000 A6 4.2

 

17819 Secondary Air Injection system: Bank2: insufficient flow
p1411 - 35-10 intermittent

17831 Secondary Air Injection system: Bank1: insufficient flow
p1423 -35-10 intermittnet


Could be the secondary air injection pump.

 

could be the vacum houses?

 

How do you troubleshoot the secondary air injection pump??

 

I have had a 2000 A-6 4.2 for 5 years kicking the same P1423 or P 1411 codes.
Periodically I have replaced the old vacuum hoses which solved the problem for a very short period of time. Probably just the computer reloading the error but it took s few days or weeks to misfire or sense the exhaust issue.

I can only assume that the secondary air pump is now more likely the problem. I just replaced the vacuum hoses and failed emissions here in MD with the same codes. Hence my pump must be next logical problem.
My question is.... has anyone ever successfully repaired this problem with the newer braided hoses installed on the 2002 cars on a car like mine?
If I have to replace the pump I would like the hose issue solved at the same time.

I'm understanding that Audi has published a Technical Bulletin 01-03-08 describing the problem and the engineering weakness yet no recall or service offering has followed. Now thats ***** for ya. German customer service logic I guess.
Dealers have seen my car repeatedly with this issue yet no solution or description of the solution has been discovered until I read it myself on the internet.

MM

 

secondary air valve solenoid, not sure if your warranty covers it though.

http://www.warrantydirect.com/warran..._emissions.asp