Pinpoint Test MD: Fuel Pressure Sensor: 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 pressure and temperature sensor (9G756)
harness circuits: FLP, SIGRTN and VREF
PCM (12A650)

Fig 1: Identifying Fuel Pressure And Temperature Sensor Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	FLP (Fuel Low Pressure)
4	SIGRTN (Signal Return)
3	VREF (Reference Voltage)

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

Courtesy of FORD MOTOR CO.

Pin	Circuit
34	FLP (Fuel Low Pressure)