[s-cars] Temp and Fuel gauge problems

[Kirby Smith]

In extremis, you will have to trace the circuits on the board and check
whether there is a critical break on a trace.  On 90qs, these are often
found at the lamp positions, although I once found one where the board
took a slight height transition.

Your clue is that both gauges fail together, so either their ground
circuits or power circuits are where I would follow traces.  (This
assumes that you have determined that they don't have failed fuses.)

kirby


UrS492 at aol.com wrote:
>
> --
> [ Picked text/plain from multipart/alternative ]
> My Cabby is having problems with the Temp and Fuel gauges.  Most days they
> never move, occationally they do.  I have replaced the temp sender but that
> didn't help.  I remember reading in my Bently for the S4 where it describes a
> similar situation.  The answer to remedy it was to replace the circuit board for
> the entire IC.  That seems to be the answer to a lot of things, just replace
> it.  Like the burnt out bulbs for seat heaters.  There almost always seems to be
> a real workaround for the DIY guys.  Is there some relay that I could try to
> replace that would be affecting these two gauges?  I have gone through and
> cleaned all the connectors that go to the IC and ensured they are all tight.  In
> fact the door buzzer started working again.  I wish it would shut up.  Any
> help would be appreciated.
>
> Mark in UT
> '92 S4
> '96 Cabriolet
> Past
> 86 Coupe GT
> 92 100 S
> 97 A4T
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