Just got off the water. Last night filled up the Nordic Flame, this morning the gauge shows empty. 180 gallon tank full, and I drove last night like 5 miles, just put in at ramp and got to condo.

All day today gauge shows empty and fuel light is flashing. Plenty of fuel in tank.

Where to start trouble shooting? Sensor maybe? Any one else with this experience? Thanks.

Gauge has a 12V hot, Ground and Sender lead
Check for 12V on purple wire, check continuity on ground, then ground the sender lead and the gauge should peg full

If it does not peg full then gauge is the issue

If it does peg full
Check ground continuity at the tank sender
Then ground pink wire and gauge should peg full

If it pegs full then sender is bad

more then likely a sender issue... had that happen the first year i went to the shootout. aggravating trying to navigate somewhere youve never boated with no idea of how much fuel you have... 😁 think i filled up 6 times in 2 days

Thanks for the info, much appreciated.