Water In Fuel Sensor

Fig 1: Return Fuel Hose Bundle

Courtesy of CHRYSLER LLC

1 - RIGHT FUEL RAIL

2 - TURBOCHARGER SERVO MOTOR

3 - WATER IN FUEL SENSOR

4 - FUEL FILTER

5 - RETURN FUEL HOSE BUNDLE

6 - CAMSHAFT POSITION SENSOR

The water in fuel sensor (WIF) is located in the fuel filter housing (4). The WIF sensor (3) detects the presence of water in the fuel. If water is present in the fuel, a signal is sent to the ECM and the ECM signals the instrument cluster, over the CAN bus, to illuminate the water in fuel warning.