Nissan Patrol GU ZD30CR Bosch Pressure Relief Valve
Part Number: FPR-133
Bosch Pressure Relief Valve Sensor
Suit GU Patrols with ZD30 Common Rail Motors
This valve is located in the end of the Common Rail and is a Quality Bosch Part.
This valves are known to open up early causing a low fuel pressure reading, once they start to open up incorrectly, they only get worse, so the only answer is replacing it.
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