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Re: Oxygen sensor?

>  Date: Tue, 23 Feb 93 17:13:56 EST
>  From: lcheng@watson.ibm.com
>  Content-Length: 1218
>  >I am wondering if anyone has had any similar experience or advice.  I
>  >have a 1990 80 Quattro, and was driving from Hudson, NY to Baltimore,
>  >MD on sunday afternoon/evening through a lot of slush and snow.  about
>  >18 miles from Delaware bridge on 295 in NJ when the engine stopped.
>  ...
>  >in the computer, and couldn't figure anything out.  they checked the
>  >CO output, etc. and determined that the O2 sensor was giving bad
>  >information to the engine computer.  thus, the computer would lean the
>  ...
>  >Laurel, MD, where I normally have it serviced, and they tried to
>  >re-create the problem by reconnecting the O2 sensor.  They drove it 31
>  >miles, and it runs fine.  according to them, the O2 sensor is working
>  >as it should.  They said they would replace the sensor if I wanted,
>  Odd!  I have a similar problem with my '88 90 Quattro: when driving
>  through snow and/or slush, the engine check light will sometimes
>  come on.  I first noticed this problem years ago when I was
>  playing (i.e. 4-wheel drifting ;-) ) in the snow.  Nothing
>  seems wrong, and the light clears either by revving the engine
>  or by restarting.
>  I've ignored the warning but would like to know why it happens.
>  - Lawrence Cheng
>    lcheng@watson.ibm.com

Same here (same car, too).  Usually happens to me when I first set
out in rain or mist.  The check engine light flashes real briefly.
I just figured all the humidity/water affected some contacts and
ignored it.