In message , "Dave Plowman (News)"
writes
In article ,
Graeme wrote:

I'll check the fuse first!

On the Minors I knew, only two fuses. So lots of other things not working
if one blew.

Quite right - I thought about that after sending :-)

You could also measure the resistance of the tank unit between full and
empty. If that doesn't change, you have the answer. IHMO it's more likely
to fail than the gauge itself.

The answer turned out to be very simple - having hoiked the spare wheel
out, I found the wire off the sender terminal! Reconnected, and all is
well.
--
Graeme