Lambda control 2

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  • JMil86
    E30 Addict
    • Dec 2008
    • 558

    #1

    Lambda control 2

    Got a check engine light that just comes on erratically sometimes on, and the car runs like crap, sounding like it has a wicked cam when idling, and sometimes it runs perfectly normal. My understanding of the Lambda control 2 is that it is usually either a vacuum leak, or an o2 sensor. When I took the car in to get the exhaust fabbed up the guy said it looks like the o2 sensor is going bad. Any help, or expert advice before I dive into this?

    Nio är livets tal.
  • e30 335i
    Member
    • Sep 2009
    • 70

    #2
    hey,

    I can tell you that dont worry bout your O2 sensor, have been runnin mine without for 12 months and runs smooth as.

    Comment

    • Doughnut
      E30 Modder
      • Oct 2007
      • 869

      #3
      Originally posted by e30 335i
      hey,

      I can tell you that dont worry bout your O2 sensor, have been runnin mine without for 12 months and runs smooth as.
      It's not recommended to drive your car around without the o2 sensor plugged in, it will run rich all the time and will eventually foul your catalytic converter.

      In saying that, try unplugging your o2 sensor, and go for a spin around the block, if it runs fine when at operating temp with the o2 disconnected it's more than likely the problem.

      But don't drive around for 12 months without it.
      ///Monstrosity. (OO≡≡[][]≡≡OO)

      Aside from showing yourself to be offensive, lacking experience and ignorant in the ways of business, you're also illiterate and imprudent. Beyond that, your sense of liability is severely impaired.

      Comment

      • JMil86
        E30 Addict
        • Dec 2008
        • 558

        #4
        Originally posted by Doughnut
        It's not recommended to drive your car around without the o2 sensor plugged in, it will run rich all the time and will eventually foul your catalytic converter.

        In saying that, try unplugging your o2 sensor, and go for a spin around the block, if it runs fine when at operating temp with the o2 disconnected it's more than likely the problem.

        But don't drive around for 12 months without it.
        I'll give that a shot. Hope it's not a problem I have to spend a ton of time tracking down, would rather have it fixed in a hurry.

        Nio är livets tal.

        Comment

        • wildstoats
          E30 Modder
          • Sep 2007
          • 896

          #5
          Another thing to note is that if your O2 sensor is bad you don't necessarily have to buy the BMW part. A couple of guys over on mye28 used off the shelf Bosch sensors from Autozone and reported that it works fine. Some wiring required though.
          $500, Diamantschwarz, and a Dream

          Comment

          • e30 335i
            Member
            • Sep 2009
            • 70

            #6
            It's not recommended to drive your car around without the o2 sensor plugged in, it will run rich all the time and will eventually foul your catalytic converter.

            lol what cat converter, straight through it.:p

            Comment

            • JMil86
              E30 Addict
              • Dec 2008
              • 558

              #7
              Originally posted by e30 335i
              lol what cat converter, straight through it.:p
              Maybe you can do that over there, but here we can get a $2500 fine for removing an emission control device :(

              Nio är livets tal.

              Comment

              • JMil86
                E30 Addict
                • Dec 2008
                • 558

                #8
                Figured it out, vacuum hose had popped off.

                Nio är livets tal.

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