Service and repair of the Fuel Pressure Regulator must first start with engine sight shield removal. Before starting service you must first remove pressure from the fuel system then disconnect the vacuum line of the Fuel Pressure Regulator. Before the removal of the Fuel Pressure Regulator retainer and Fuel Pressure Regulator from the Fuel Pressure Regulator housing it is essential to clean surrounding surface areas along with the Fuel Pressure Regulator retainer. Start by fitting the back up ring onto the Fuel Pressure Regulator and then add the new large o-ring before completing with installation of the regulator filter. Put fresh small o-ring on the Fuel Pressure Regulator before applying clean engine oil to both o-rings. The Fuel Pressure Regulator should be inserted into the regulator housing of the
Fuel Rail as you also install a fresh Fuel Pressure Regulator retainer. After reconnecting both connections of Fuel Pressure Regulator vacuum line and negative
Battery Cable install the fuel filler cap while tightening it. Turn the ignition on for two seconds before you turn it off for ten seconds and another two-second turn of the ignition for a fuel leak inspection. Reposition the engine sight shield as the last step of the process.