DF350 Fuel gauge Issue

Old 07-13-2019, 02:30 PM
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Default DF350 Fuel gauge Issue

So I am running a DF350 that is fed by 3 tanks, 2 x 55 saddles and a 110 Center. Today running across Tampa bay, I had my fuel selector switch set to ALL Tanks. I can switch between Center, Port and Starboard, and All. All of my fuel percentages showed approx. 45%. Out of the blue, my port gauge drops to 0% and starts flashing red. Center and Starboard both stayed and slowly decreased as normal? This is the second time this has happened. The first time I just thought someone had siphoned all the gas out of my tank. Any idea what this could possibly be.
Bad Fuel sender ?? Boat is a 2018.

Thanks for any advice

Old 07-15-2019, 05:45 AM
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Sounds like either a bad fuel sender, connection or fluid level sensor. The sender is in the fuel tank while the fluid level sensor should be in the console and goes in between the fuel sender wires and the nmea2000 network for the digital gauges. This fluid sensor converts the analog fuel sender signal to a nmea2000 format that the gauge can read. You can check the fuel sender by taking the 2 wires that come off of it and touch them together, if the gauges shows full then the wiring and fluid sensor is good and you need to change the fuel sender.

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