Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
DD: Fuel Pressure, Fuel Rail Pressure (FRP) And Fuel Rail Pressure Temperature (FRPT)
DD: Introduction
Sensors
DD1 CHECK FOR DTCS
Are DTCs P0087, P0088, P0181, P0182, P0183, P018B, P018C, P018D, P0192 or P0193 present?
Yes | No |
|---|---|
For DTCs P0181, P0182 or P0183, GO to DD13 . For DTCs P018B, P018C or P018D, GO to DD2 . For all others, GO to DD8 . | RETURN to Section 3 , Symptom Charts for further direction. |
DD2 CHECK THE VREF AND SIGRTN CIRCUITS FOR AN OPEN
• Ignition OFF.
• Fuel Pressure Sensor connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) Fuel Pressure Sensor Connector, Harness Side | ( - ) Fuel Pressure Sensor Connector, Harness Side |
|---|---|
VREF - Pin 3 | SIGRTN - Pin 2 |
Is the voltage between 4.5 - 5.5 V?
Yes | No |
|---|---|
GO to DD3 . | GO to Pinpoint Test C . |
DD3 CHECK THE FLP CIRCUIT FOR AN OPEN
• Ignition OFF.
• PCM connector disconnected.
• Measure the resistance between:
( + ) Fuel Pressure Sensor Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
FLP - Pin 1 | FLP |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.