What dose a O2 / lambda sensor do ? .??

  1. Welcome to Saabscene – General discussion forum for Saab

    Welcome to Saabscene - a website dedicated to all things Saab.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join Saabscene today!
     
Results 1 to 3 of 3

Thread: What dose a O2 / lambda sensor do ? .??

  1. #1

    What dose a O2 / lambda sensor do ? .??

    Yep I'll prob be booted out for this , but I have a mazda 6 2.0DI . ( long story why but it's mine )
    Any road up it had DPF light flashing and EML on . Took it back to selling garage , and to,d them not fit for purpose thingy . Any way they carried out regen and a very expensive oil change ( FOC ) . Drove it away and 2 miles later same ting ! . Took it back , they re-scanned it and came up with O2 sensor fault .
    So they took them out (2 I've been told ? ) . Cleared code and are now running it around , I don't want it back till they have giving it a good run , so should have it back tomorrow .
    I'm not looking for technical advise , but my question is as the title , what do the O2 sensor (s) on a diesel do ? . I know it's something to do with oxygen , but do they advance or retard something
    It's just my mind being inquestive .
    Thank in advance for a technical response .

  2. Remove Advertisements
    SaabScene.com
    Advertisements
     

  3. #2
    Saabisti
    Join Date
    Nov 2014
    Location
    Northamptonshire, UK
    Posts
    206

    Re: What dose a O2 / lambda sensor do ? .??

    Lambda sensors measure the O2 levels in the exhaust gases and determine from that whether the mixture is correct (1st sensor) and the state of the catalytic convertor (2nd sensor). From these measurements it calculates the amount of fuel trim required for optimum efficiency and minimum emissions.

  4. #3

    Re: What dose a O2 / lambda sensor do ? .??

    A big Thankyou Lostkiwi for that . Now I understand .
    And welcome back lostkiwi long time .. Since I've seen you on here .

  5. Remove Advertisements
    SaabScene.com
    Advertisements
     

Similar Threads

  1. Lambda sensor
    By paddysaab in forum Saab 9000 (1984 - 1998)
    Replies: 8
    Last Post: 03-03-2010, 03:07 PM
  2. Lambda Sensor
    By AlanG in forum Saab 9000 (1984 - 1998)
    Replies: 17
    Last Post: 01-10-2008, 08:14 PM
  3. LAMBDA SENSOR
    By dragoondf in forum Classic Saab 9-5 (1997 - 2009)
    Replies: 1
    Last Post: 01-30-2007, 04:45 AM
  4. Lambda sensor
    By Tommadega in forum Classic Saab 9-3 & GM900 (1994 - 2002)/Conv ( -2003)
    Replies: 7
    Last Post: 04-18-2005, 04:38 PM
  5. Lambda Sensor
    By emptypockets in forum Saab 9000 (1984 - 1998)
    Replies: 2
    Last Post: 11-29-2004, 02:41 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.1.2