Yes, I'd check the 12v and grounds first.

Robk1013 wrote:
The panel lights all work, I had the boat out last night. All fuses
check ok. I am assuming the gauges has the feed from sending unit, a
12 volt source and a ground
Jim wrote:
"Robk1013" wrote in message
ps.com...
Has anyone had a similiar issue with gauges not working, both the fuel
and temp are not working. I do have a meter and looking for a few
troubleshooting techniques.

Thanks

Robert

Most of that stuff is daisy chained. Hint: The panel lights and instruments
usually share the same grounds. If the panel lights work on those gauges,
the problem is most likely with the +12v.
Jim