ive always had a problem with my fuel gauge since i bought my mini.
When i short the wires together the gauge shoots up to the top.
When the tank is full the gauge reads only up to about 3/4, the gauge works but always reads 1/4 under what it actually is.
It doesnt bother me too much but it would be nice to get it sorted.
My mini is a 1989 austin mini 30 (limited edition) and has nippon seiki gauges.
I should also point out that the sender had been replaced and it has helped but not enough, and that the temp gauge works absolutly perfectly.
Cheers Angus