That sounds like they are maxxed out.

Do you see anything else wrong with anything displayed on the tester?

Make sure they are all sane. Move the throttle and see if the ones that are supposed to change, do.

You should see the raw o2 sensor voltage swinging back and forth across 0.5 volts after it is warmed up (80 deg. C for 10 minutes)

Here are some screenshots made while one was warming up. Each page gives a clue about plausible values. http://bmwecu.org/dme2/

There are several fault codes about the o2 sensor. I think I know which ones you are seeing. The nomenclature is confusing. Do you have code numbers?

The adaptation will go away if you reset the DME by removing your battery ground cable for however long. It will start over again at zero and maybe you can see what is making it go screwy. Probably you can tell it is reset when the fault code is gone.

--
Ken Fister - Charlottesville, Virginia USA
97 328i, 95 540i, 97 Hino truck
bmwecu.org

• 540 help(long) - my406cid 2008-08-19 09:35:42 (94 views)
  • Re: 540 help(long) - rick540 2008-08-19 13:47:55 (77 views)
    • Re: 540 help(long) - kfister 2008-08-19 21:04:09 (51 views)
      • Re: 540 help(long) - my406cid 2008-08-20 11:00:27 (45 views)
        • Re: 540 help(long) - rick540 2008-08-20 11:47:04 (42 views)
        • Re: 540 help(long) - kfister 2008-08-20 11:30:15 (56 views)
          • Re: 540 help(long) - my406cid 2008-08-20 12:09:24 (40 views)
            • did you try the MAGIC SHOGUN RESET - kfister 2008-08-20 12:52:36 (86 views)
              • Re: did you try the MAGIC SHOGUN RESET - my406cid 2008-08-20 17:36:27 (52 views)