Fuel Pressure Control Valve (FPCV)

Description and Operation

Description

The fuel pressure regulator valve is installed on the high-pressure fuel pump. It controls the amount of fuel supplied to the injectors. The ECM calculates the signal based on various engine conditions.

Specifications

Specification

Item	Specification
Coil Resistance (Ω)	0,39–0,43 [20 °C]

Troubleshooting

Signal Waveform

Fuel Rail Pressure Regulator Signal Waveform at Idle

Circuit Diagrams

Wiring Diagram

Harness Connector

Repair Procedures

Inspection

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
2. 2
   Disconnect the fuel pressure control valve connector.
3. 3
   Measure the resistance between terminals 1 and 2 of the fuel pressure control valve.
4. 4
   Make sure the resistance is within specification.

   Specification: 0.39–0.43 Ω [20 °C]

Removal

The fuel pressure regulator valve cannot be replaced separately. Replace it together with the high-pressure fuel pump assembly. (Refer to Fuel System — "High-Pressure Fuel Pump")

Installation

The fuel pressure regulator valve cannot be replaced separately. Replace it together with the high-pressure fuel pump assembly. (Refer to Fuel System — "High-Pressure Fuel Pump")