AudiForums.com

Go Back   AudiForums.com > Audi Tech > General Tech
Sign in using an external account
Register Forgot Password?
Register Photos FAQ Members Parts Search Today's Posts Mark Forums Read ExperienceGarageUsed CarsVendor Directory
Search
Welcome to AudiForums.com

General Tech
Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 07-25-2006, 04:57 PM
 
Join Date: Jul 2006
Location:
Posts: 4
Default Trouble code: PO431-Help!

Hi Everyone-
I have an Audi A4 3.0 Quattro, 2002. My engine light came on, so I took it to an auto body shop just to find out what the light meant. My trouble code says: Warm Up Catalyst Efficiency Below Threshold (Bank 2)

What does this mean and what should I do about it? Do I really need to do anything about it??
__________________
Tara
  #2  
Old 07-25-2006, 05:44 PM
4th Gear
 
Join Date: May 2004
Location: Northern NJ USA
Posts: 4,018
Points: 8,646, Level: 62
Points: 8,646, Level: 62 Points: 8,646, Level: 62 Points: 8,646, Level: 62
Level up: 66%, 104 Points needed
Level up: 66% Level up: 66% Level up: 66%
Daily Activity: 5.4%
Daily Activity: 5.4% Daily Activity: 5.4% Daily Activity: 5.4%
Default RE: Trouble code: PO431-Help!

Are you sure the code isn't P0432 ?
__________________
2009 Subaru Impreza 2.5i Auto 4dr Premium

Previous Car
2001 A4 1.8T Q Casablanca White, Tip, ESP, Xenon and Premium
  #3  
Old 07-30-2006, 02:57 PM
3rd Gear
 
Join Date: Oct 2005
Location:
Posts: 2,646
Points: 4,930, Level: 44
Points: 4,930, Level: 44 Points: 4,930, Level: 44 Points: 4,930, Level: 44
Level up: 90%, 20 Points needed
Level up: 90% Level up: 90% Level up: 90%
Daily Activity: 0%
Daily Activity: 0% Daily Activity: 0% Daily Activity: 0%
Default RE: Trouble code: PO431-Help!

You probably need a catalytic converter. It should still be under warranty if you have less that like 75k miles.
  #4  
Old 07-31-2006, 02:32 PM
 
Join Date: Jul 2006
Location:
Posts: 4
Default RE: Trouble code: PO431-Help!

Thanks, I will check into it. The guy who revealed the code to me said that to replace a catalytic converter, it's a big deal. Like, it opens a can of worms and can cause other problems. What do you think?
__________________
Tara
  #5  
Old 07-31-2006, 02:34 PM
 
Join Date: Jul 2006
Location:
Posts: 4
Default RE: Trouble code: PO431-Help!

I was told P0432....but I suppose it could have been a mistake. What is PO431? What makes you think I have the wrong one?
__________________
Tara
  #6  
Old 07-31-2006, 02:58 PM
 
Join Date: Nov 2005
Location:
Posts: 12,826
Default RE: Trouble code: PO431-Help!

P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2).

P0432 main catalyst bank 2 (not heated type).

also could be the o2 sensor/wiring
  #7  
Old 07-31-2006, 04:34 PM
 
Join Date: Jul 2006
Location:
Posts: 4
Default RE: Trouble code: PO431-Help!

Sorry about that..you got me a little confused. YES: it is PO431 as stated in the original subject line.

To all that have posted replys: thank you very much, however...
if it's the catalytic converter or the O2 sensor, how important are these things and typically how expensive??
I do not want to get hosed at the dealership. I find them to be a little...um...dangerous for someone that doesn't
know a lot about the inner workings of a car. I'm learning, but I'm not that confident I come out of there 1000K in debt...
__________________
Tara
  #8  
Old 07-31-2006, 04:53 PM
 
Join Date: Nov 2005
Location:
Posts: 12,826
Default RE: Trouble code: PO431-Help!

so its the warm up cat type then (expensive) but a DIY job and simple as changing an exhaust using the proper safety stands before you go under there, look for a universal catalyst as they are half the price
  #9  
Old 07-31-2006, 04:56 PM
 
Join Date: Nov 2005
Location:
Posts: 12,826
Default RE: Trouble code: PO431-Help!

you could also fit a test pipe to make sure its the cat,

im not suggesting you leave it in there cough because it will give you too much power cough
  #10  
Old 08-04-2006, 04:44 AM
1st Gear
 
Join Date: Aug 2006
Posts: 7
Default RE: Trouble code: PO431-Help!

I

the catalyst have a 10 years warranty at audi dealership... dont worry!!!
Old 08-04-2006, 04:44 AM
 
 
 
Reply


Tags
2002, a4, a6, audi, bank2, cat, catalyst, catalytic, converter, efficiency, p0432, po431, quattro, threshold, warm, warming


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory
New Sponsors

All times are GMT -4. The time now is 01:15 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.
Internet Brands, Inc.
Emails Backup