Re: OAT Read Fail

["Steve & Christa Dranchak" <dranchak@flash.net>]

>I have been trying to solve a OAT reading problem on a 92 100/A6 Q for
some
>months now.  The read out suddenly went to -40C and no amount of poking
around
>and cleaning the sensor has helped. With some advice from the list and the
>dealer, I bought a new sensor. Replaced the old one yesterday, no change!.
I
>have the Bentley which says nothing about the wiring except its multiplug
>position and that it exists.

I had the same problem a few months back on my 92 100CSQW.  Of course it
wasn't the sensor because even though it's not cheap, it's too easy to
replace. I eliminated the sensor itself as the problem when I disconnected
it completely and still had the same flaky temp reading.  It turned out to
be the temp display module itself ($200 or so from the dealer).  Since
replacement, it's worked fine.

Steve
Albuquerque, NM, USA
92 100 CSQW
92 100 S