Pinpoint Tests MD: Fuel Pressure Sensor And Fuel Delivery Pressure Switch: Introduction

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 delivery pressure switch (9S599)
fuel pressure and temperature sensor (9G756)
harness circuits: FDPS, FLP, GND, SIGRTN and VREF
PCM (12A650)

Fig 1: Fuel Pressure And Temperature Sensor Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-650/F-750	A	2 4 3	FLP SIGRTN VREF
F-150, F-Series Super Duty	A	2 1 3	FLP SIGRTN VREF
Transit Connect	B	2 3 1	FLPT SIGRTN VREF

Fig 2: Powertrain Control Module-E (PCM-E) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-650/F-750	A	117 92	FLP FLPT
Transit Connect	B	53	FLPT
All other vehicles	A	117	FLP