B5 Models Please discuss all 1996 - 2001 B5 A4 topics here...

Can't pass emissions: O2, cats, HELP please thanks

Thread Tools
 
Search this Thread
 
  #1  
Old 01-11-2011, 10:19 PM
audiup's Avatar
1st Gear
Thread Starter
Join Date: Jan 2011
Posts: 9
Default Can't pass emissions: O2, cats, HELP please thanks

Hi again. Posted here a bunch and always had good luck with your info, so ... here we go again.

Failed emissions. Throwing 0411, 0422, 0432. I tried to re-set with tool, and with disconnecting battery. Hooked it up again and (state) test says NOT READY FOR TESTING. If I drive it 15 miles (after resetting with generic OBD2 tool) the codes pop up again. So I don't know if I can get it through with resetting and driving a bit. So maybe I need to actually work on the car?
Mechanics there say even if the code is saying cats it may just be O2 sensors. Does anyone have experience with these codes?
THe car is a 98 A4 2.8 Q, manual, 30v, 220K. I don't know if I am going to put money into this car as it is pretty old, due for t-belt service, etc.
Still runs great and is super-dependable so its a shame to get rid of it for the freakin emissions test!!! Is it really killing the planet???
 
  #2  
Old 01-11-2011, 10:34 PM
02A6Beau's Avatar
AudiForums WilkommenVagen Direktor
Join Date: Jan 2010
Location: Western MD USA
Posts: 2,955
Default

0411 Secondary Air Injection System flow incorrect

Problem with the SAI pump or associated hoses



0422/0432(?) Catalyst problem

Most likely O2 sensors need to be replaced



Could be an easy fix, or could be more complicated. If you are going to do the work yourself it probably wont be too bad. However, it could take more money than you are willing to put into it if you are going to a shop.

Good luck. keep us updated
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mikeeboy82
Computer & Fuel Systems
5
09-22-2011 04:37 PM
btl1990
B5 Models
8
06-30-2008 09:40 PM
sidekicklxondeck
Audi A6
3
06-28-2008 11:18 AM
Rosati
Archive - Engine/Performance Parts
2
05-07-2007 09:14 PM
newcaligirl
Classic Audi
9
11-16-2006 12:57 PM



Quick Reply: Can't pass emissions: O2, cats, HELP please thanks



All times are GMT -4. The time now is 12:32 PM.