[V8] Fuel never reads Full

[urq]

... as do both of mine ... but I've had and seen enough Audis to know that 
it is a common malady.  As others have pointed out it is most likely due to 
the sender in the tank.  On older cars the diagnostic was to connect a 
certain valued fixed resistor in place of the fuel tank sender to see what 
the gauge reads.  On the V8 the instrument cluster has a diagnostic mode 
that creates a standard reading on the gauges ... I *think* the fuel gauge 
is part of this mode.  When the diagnostic is enabled the IC forces the 
gauges t read in standard locations, you should be able to run this to see 
if it is the gauge.

Another data point ... in all of my V8 IC flakiness experience I've never 
found an issue with the reading of the fuel gauge ...

Steve B
San Jose, CA (USA)

----- Original Message ----- 

Mine will register above the 20 on a complete fill.

On 7/28/05, S_Matus <scott_matus at yahoo.com> wrote:
> Has anyone been able to fill your fuel cell to read on the mark right past 
> the "20" indication in the fuel gauge?  I have tried to overfill but it 
> does not dgo up that far.  I'm cautious not to damage the emmissions on 
> the car.
>
> Could it be a connection issue in the cluster?