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

RON coded plug

Discussion in 'A4/S4 forum(B5 Chassis)' started by gaz71, Jul 20, 2009.

  1. gaz71
    Offline

    gaz71 1.8T Quattro Sport AJL

    Joined:
    Jul 13, 2009
    Messages:
    286
    Likes Received:
    0
    [Jul 20, 2009]
    I was looking at my engine earlier and I noticed something. At the back of the engine bay there is a brown plug which I assume to be the RON code plug. For my car, A4 1.8t Quattro Sport engine code AJL, I thought that it should have a plug marked 98. The one in my car is marked 87. Am I just being stupid or has my car got the wrong coded plug :confused:
    #1
  2. Ads

    Ads

    [Dec 26, 2014]

  3. aragorn
    Offline

    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

    Joined:
    Jan 30, 2008
    Messages:
    15,867
    Likes Received:
    353
    [Jul 20, 2009]
    RON plugs havent been around for years, only the old Jetronic and very early motronic systems use them, later motronics had them but it didnt change the RON just acted a bit like a diag plug, and i've certainly never seen one on the A4

    Can you take a pic of this plug?
    #2
  4. Broken Byzan
    Offline

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

    Joined:
    Apr 26, 2004
    Messages:
    12,778
    Likes Received:
    325
    [Jul 20, 2009]
    Brown plug is normally the one that goes to the Oxy sensor IIRC
    #3
  5. griswold
    Offline

    griswold Member

    Joined:
    Jan 25, 2008
    Messages:
    341
    Likes Received:
    5
    [Jul 20, 2009]
    yes its from the cat mines got 87 too
    #4
  6. gaz71
    Offline

    gaz71 1.8T Quattro Sport AJL

    Joined:
    Jul 13, 2009
    Messages:
    286
    Likes Received:
    0
    [Jul 20, 2009]
    OK, thanks.......Stupidity 1 Me 0 :keule:
    #5

Share This Page