Notices
 

  

User Tag List

Thread: Dodgy O2/Lambda Sensor

Results 1 to 7 of 7
  1. Question Dodgy O2/Lambda Sensor 
    #1
    Join Date
    Jul 2017
    Location
    Dollar, Scotland
    Posts
    3
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Hi all,

    First post so please be gentle!

    I've recently had the dreaded Engine Management warning light on my 2013 A6 (2.0TDi 177). I've used my OBDII reader to get the following fault code:

    P2196 - O2 Sensor Signal Stuck Rich Bank 1 Sensor 1

    I cleared the fault to see if it was a fluke (wishful thinking I know) but it has happened 3 times now in 3 days, so I'm guessing (hoping) it's just a dodgy lambda sensor in front of the DPF/Cat.

    Here's the thing, though. On each time it has happened, it's always been during a period of sustained gentle engine braking (20 seconds or so) on the motorway, going from about 60mph to 40mph in 4th gear. Under these conditions, I'm pretty sure there's very little, if any, fuel in the exhaust unless there's something else at fault.

    However, the car has no other symptoms at all. It's running well, performing well, no smoke, great fuel economy (53+ mpg) and there are no other fault codes. Obviously, it's a diesel so I'm guessing it's unlikely to get a rich enough fuel mixture to genuinely trigger that sensor reading. I don't horse the car or treat it harshly, and it's had an easy life in the 30K miles since I've owned it. It's been serviced by Audi all its life, and its last service was about 7,000 miles ago.

    So am I safe enough to assume it's a faulty lambda sensor, or bad connection, or do the circumstances point to something else?

    BTW, the car has done 55K miles, so the sensor isn't due to be replaced.

    Any advice much appreciated.
     
    0 0 0
     

  2. Re: Dodgy O2/Lambda Sensor 
    #2
    Join Date
    May 2013
    Location
    Cheshire
    Posts
    239
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    4 Post(s)
    Just had mine replaced. Same warnings, same (absence of) symptoms.

    Have it changed by an indy, so you've got peace of mind.

    Those probes seem prone to failure. They are supposed to last 250,000 km or so.
    63 reg Ibis White A6 2.0 TDI SE Multitronic, Tech pack, folding mirrors, rear view camera, heated seats.
     
    1 1 0
     

  3. Re: Dodgy O2/Lambda Sensor 
    #3
    Join Date
    Jul 2017
    Location
    Dollar, Scotland
    Posts
    3
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Quote Originally Posted by Olio View Post
    Just had mine replaced. Same warnings, same (absence of) symptoms.

    Have it changed by an indy, so you've got peace of mind.

    Those probes seem prone to failure. They are supposed to last 250,000 km or so.
    Thanks Olio, that's good to know.

    I did wonder whether the emissions fix was partially to blame, but a) I doubt it and b) they'd never admit it even if true.

    How much did you pay at your Indy? I got quoted 205 all-in.
     
    0 0 0
     

  4. Re: Dodgy O2/Lambda Sensor 
    #4
    Join Date
    Jan 2007
    Location
    Nottingham, England
    Posts
    31,828
    Post Thanks / Like
    Blog Entries
    2
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    53 Post(s)
    Those sensors fail with or without the stupid recall but I will repeat again, if you have not had the recall done, don't!
    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:


    www.helpforheroes.org.uk

    Keep XH558 in the air
    www.vulcantothesky.org

     
    0 0 0
     

  5. Re: Dodgy O2/Lambda Sensor 
    #5
    Join Date
    May 2013
    Location
    Cheshire
    Posts
    239
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    4 Post(s)
    205 is 10 cheaper than what I've paid, so sound about right.
    63 reg Ibis White A6 2.0 TDI SE Multitronic, Tech pack, folding mirrors, rear view camera, heated seats.
     
    0 0 0
     

  6. Re: Dodgy O2/Lambda Sensor 
    #6
    Join Date
    Jan 2007
    Location
    Nottingham, England
    Posts
    31,828
    Post Thanks / Like
    Blog Entries
    2
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    53 Post(s)
    The sensor is 174.52 inc. VAT genuine or 140 for a Bosch from ECP.
    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:


    www.helpforheroes.org.uk

    Keep XH558 in the air
    www.vulcantothesky.org

     
    1 1 0
     

  7. Post Re: Dodgy O2/Lambda Sensor 
    #7
    Join Date
    Jul 2017
    Location
    Dollar, Scotland
    Posts
    3
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Quote Originally Posted by Olio View Post
    205 is 10 cheaper than what I've paid, so sound about right.
    Thanks Olio and Crasher
     
    0 0 0
     

Similar Threads

  1. Solved Replacing a dodgy reversing sensor on my A6 Avant
    By Stevewoodmeuk in forum Audi A6 - C6 Forum - 2005 - 2010
    Replies: 5
    Last Post: 25-06-2014, 09:39 PM
  2. Question lambda sensor on a mk4 1.6 16v
    By syau in forum Golf MK4 - 1999 - 2004
    Replies: 7
    Last Post: 01-03-2011, 07:19 PM
  3. Question B1 S1 Lambda sensor
    By quattrocamper in forum Audi A4 - B5 Forum - 1995 - 2002
    Replies: 1
    Last Post: 20-10-2010, 11:33 PM
  4. Question lambda sensor
    By monkgti in forum Golf MK5 - 2004 - 2009
    Replies: 1
    Last Post: 21-01-2010, 07:23 PM
  5. lambda sensor
    By black_mk4_golf in forum Golf MK4 - 1999 - 2004
    Replies: 2
    Last Post: 29-10-2008, 12:34 AM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  




  



Disclaimer: VW Audi Forum is an "independant enthusiast website", administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the official websites. Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.


VW Audi Forum do not vet and are not responsible for any information which is posted in this forum. All content is viewed and used by you at your own risk and we do not warrant the accuracy or reliability of any of the information.


Copyright: Certain "words", "phrases" and "Images" used on this website by the Administration are "Copyright" of Volkswagen GB, Volkswagen AG (Germany), Audi GB, Audi AG (Germany), Volkswagen Motorsport GB, Volkswagen Motorsport AG (Germany), Audi Motorsport AG (Germany), Volkswagen Racing GB, Bentley, Bugatti, Porsche and Lamborghini. No image can be replicated by anyone WITHOUT the relevant Companies written permission.


All trademarks and copyrights remain property of their respective owners.

No part of the VW Audi Forum website or forum may be reproduced without written permission from the site administration


PLEASE NOTE - PERSONAL ABUSE, ABUSE AGAINST THIS OR ANY OTHER WEBSITE OR ANY COMPANY WILL NOT BE TOLERATED. OFFENDERS WILL BE MODERATED OR EVEN BANNED.


This website and forum are best viewed at a minimum resolution of 1024 by 768.



  



- VW AUDI Forum - The #1 Volkswagen (VW) Group Forum - Volkswagen (VW) - Audi - Seat - Skoda - Bentley - Bugatti - Lamborghini - Porsche - VW Audi Forum -


- www.vwaudiforum.co.uk - www.vwaudiforum.co.uk -