Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Ford RV Cutaway, 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, and 2002 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
Perform this test when directed by QUICK TEST. This test is only intended to diagnose the following components and circuits:
- WIF Sensor Output To Powertrain Control Module (PCM)
- WIF Sensor Wiring Harness Circuits
- PCM
Water In Fuel (WIF) sensor is used to detect water in fuel system and is located in fuel filter housing. WIF sensor is monitored by PCM. If PCM detects water for more than 5 seconds, it will set a Continuous Memory DTC P1140 and turn on WATER IN FUEL Indicator Light (WIFIL).