fuel sensor

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    Cummins ISX » SPN-829 FMI 3 Left Level Fuel Sensor - Fuel Sending Unit

    LEFT FUEL LEVEL SENSOR VOLTAGE ABOVE NORMAL, OR SHORTED TO HIGH SPN: 829 FMI: 3 It can be the level potentiometer or a bad wiring harness. Both need to be evaluated/tested for diagnosis. Check for loose wires or corroded electrical connections. Fuel Sending Unit Code
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