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Thread: which Oxygen sensor is #2 ??

  1. #1
    Join Date
    Jun 2006
    Location
    California
    Posts
    6

    Default which Oxygen sensor is #2 ??

    I got the code 1213 Oxygen sensor #2 lean/rich control stop (DME 3.3. only)
    and I have the sensor already.
    which one is #2 (or which is #1) ???
    95 530i manual trans. M60 engine has 2 sensors.

    Thanks

  2. #2
    Join Date
    Mar 2006
    Location
    USA
    Posts
    1,839

    Default

    you should replace O2 sensors in pairs, so get another one!

  3. #3
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    6,922

    Default

    should be the left but i would not replace just one, it's ok to do just the front sensors on a obdII car (4 sensors total) and not replace the back sensors but i wouldn't want to do a left or right primary only. a control limit code may or may not be a bad sensor, you may have a intake leak causeing a mixture problem on that bank and the computer threw the code because it's at it's adjustment limit, or that sensor is worn out and out of range and is throwing off the mixture on it's own
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  4. #4
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,774

    Default

    i wonder how many V8 people replaced the sensors and still got the O2 codes, I read about 3 or 4 over the past couple years.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  5. #5
    Join Date
    Jun 2006
    Location
    California
    Posts
    6

    Default

    Thanks for reply(s):
    On this particular case:
    Changing one (#2)=driver side got rid of the check engine light; and went for the smog re-test; this time pass !!!!
    with flying colors;
    upon comparing the emission numbers; they were all reduced and by a lot.
    (meet the tough Californis standars)

    Thanks again to all
    Julio
    95 530i M60 engine, Manual trans.

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