Water In Fuel Sensor

The design of the fuel manager/filter includes an area that allows water droplets-as small as one micron-to separate from the fuel and collect in a lower portion of the housing. The water-in fuel sensor will detect a certain amount of water in the fuel inside of the filter housing and then turn the water-in-fuel lamp ON in the instrument cluster.

When the ignition switch is first turned to the run position, the water-in-fuel lamp will come ON for 2 to 5 seconds. This action provides a bulb check.