Pinpoint Tests O: Water in Fuel (WIF) Sensor: Introduction
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2019 Ford Transit-350 HD, 2019 Ford Transit-350, 2019 Ford Transit-250, 2019 Ford Transit-150, and 2019 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.
This pinpoint test is intended to diagnose the following:
- fuel system contamination
- harness circuits: GND, SIGRTN, WIF and VPWR
- WIF sensor (9T321)
Harness Side
| Circuit | Pin |
|---|---|
| WIF (Water In Fuel) | 1 |
| SIGRTN (Signal Return) | 2 |
| GND (Ground) | 3 |
Harness Side
| Circuit | Pin |
|---|---|
| WIF (Water In Fuel) | 24 |
| SIGRTN (Signal Return) | 44 |