Fuel Rail: Operation

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The Fuel Rail is designed to function in a semi-returnless Fuel System. The Fuel Pressure Regulator is no longer mounted to the fuel rail. The Fuel Pressure Regulator is now located on the Fuel Pump. Refer to Fuel Filter/Fuel Pressure Regulator in the Fuel Delivery System section of this group for information. The fuel rail is not repairable, and must be replaced if it is damaged or malfunctioning.