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Home >> Land Rover >> 2015 >> Range Rover Autobiography >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Electronic Engine Controls - TDV6 3.0L Diesel -- Range Rover/L405) >> Electronic Engine Controls - TDV6 3.0L Diesel >> Electronic Engine Controls (Description And Operation) >> Description And Operation >> Description >> Fuel Pressure Control Valve

Fuel Pressure Control Valve

WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
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The fuel pressure control valve is located in a threaded port in the forward end of the fuel rail for the left cylinder bank. The Powertrain Control Module (PCM) controls the fuel rail pressure by operating the control valve solenoid using a Pulse Width Modulation (PWM) signal.

The PCM controls the operation of the control valve using the following information to determine the required fuel pressure:

In the event of a total failure of the fuel pressure control valve, the engine will not start. In the event of a partial failure of the fuel pressure control valve, the PCM will activate the solenoid with the minimum PWM duty cycle which results in the injection quantity being limited.

For additional information, refer to: FUEL CHARGING AND CONTROLS

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