1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

OBD and non OBD Cat converters 2.4 v6

Discussion in 'A4/S4 forum(B5 Chassis)' started by Oily Fingers, Jul 26, 2011.

  1. Oily Fingers
    Offline

    Oily Fingers New Member

    Joined:
    Mar 18, 2011
    Messages:
    3
    Likes Received:
    0
    [Jul 26, 2011]
    Hello everyone, got a quick question that i hope you can help me with.

    My 1998 2.4 v6 Avant needs both Cat converters replacing and one has broke up and the other one is blowing pretty bad from a previous owners attempt at "de-cat" one. :(

    anyway, been looking round on the net for prices of the Cats and what keeps coming up is Not OBD and OBD cats! how do i work out which ones i have on my car??????


    joel
    #1
  2. Ads

    Ads

    [Sep 21, 2014]

  3. Bradderz_1988
    Offline

    Bradderz_1988 Dont replace it, Upgrade it !!

    Joined:
    Aug 19, 2010
    Messages:
    3,233
    Likes Received:
    106
    [Jul 26, 2011]
    It will have lambda/02 sensors on the cats if it's OBD !
    #2
  4. audiv6quattro
    Offline

    audiv6quattro Member

    Joined:
    Dec 21, 2010
    Messages:
    392
    Likes Received:
    2
    [Jul 26, 2011]
    #3
  5. audiv6quattro
    Offline

    audiv6quattro Member

    Joined:
    Dec 21, 2010
    Messages:
    392
    Likes Received:
    2
    [Jul 26, 2011]
    Oh yeah and don't buy cheap of the net I done that with one of mine I brought one from a motor factors for about 165 quid and that was fine and I brought one a week later for 90 quid of the net. It was s**t it came in 3 bits i didn't fit properly it still blows a little bit now and it sounds really raspy, pay the extra an go to a motor factors mate
    #4
  6. Oily Fingers
    Offline

    Oily Fingers New Member

    Joined:
    Mar 18, 2011
    Messages:
    3
    Likes Received:
    0
    [Jul 26, 2011]
    kool, cheers for the replys. i did think it would be somthing to do with the lambda sensors.
    and thanks for the link as well, i did do a search before posting the topic but nothing came up :S
    #5
  7. audiv6quattro
    Offline

    audiv6quattro Member

    Joined:
    Dec 21, 2010
    Messages:
    392
    Likes Received:
    2
    [Jul 26, 2011]
    Yeah I always try the search but noting ever comes up then a few months down the line they turn up, glad to help mate, good luck
    #6
  8. AR-rkon
    Offline

    AR-rkon BZZZZ.... caffeine fueled electrical engineer Regional Rep

    Joined:
    Oct 8, 2010
    Messages:
    1,708
    Likes Received:
    78
    [Jul 26, 2011]
    Think that actually: OBD compliant cats have 2 lambda (one upstream/precat, and one downstream/post cat) to monitor cat efficiency, whereas Non OBD only have the one to monitor the fuelling.

    :rock:
    #7
  9. Bradderz_1988
    Offline

    Bradderz_1988 Dont replace it, Upgrade it !!

    Joined:
    Aug 19, 2010
    Messages:
    3,233
    Likes Received:
    106
    [Jul 26, 2011]
    As rconn says really OBD will be 2 sensors non OBD will be one, didn't really describe my last post well enough for you Sorry.
    #8

Share This Page