I've got an 89 Syncro and the fuel and temp gauges both work but they do
not give accurate readings.  I have already checked & replaced the voltage
regulator for the gauges but that made no difference.  Here is what is
occurring:

Fuel Gauge - Fill the tank and it reads full, as I drive it falls very
quickly, after about 100 miles (which takes about 1/2 a tank) it reads dead
empty, filling it up starts the process all over again.  When the problem
first started it was only intermittent - now it happens all of the time.

Temp Gauge - It simply reads to low.  It used to read just fine but now it
barely gets off of the bottom white square.  I know the temps are higher
than this as the cooling fan kicks in.  I have replaced the sender - no
change :-(

I do not think the inaccuracy of the gauges is caused by the same problem
as the problems started happening many months apart but I've been wrong
before!  Any suggestions or ideas?

-Hans