Pressure Regulator Spring Diaphragm Valve FROM DELIVERY PIPE TO RETURN HOSE Delivery Pipe No. 2 Pressure Pipe Fuel Return Hose Vacuum Sensing Hose Pressure Regulator ON-VEHICLE INSPECTION CHECK FUEL PRESSURE (See page FI-45) REMOVAL OF PRESSURE REGULATOR 1. DISCONNECT VACUUM SENSING HOSE 2. DISCONNECT FUEL HOSE (a) Put a suitable container or shop towel under the pressure regulator. (b) Disconnect the fuel hose from the pressure regulator. 3. DISCONNECT NO. 2 FUEL PIPE FROM PRESSURE REGULATOR 4. REMOVE PRESSURE REGULATOR Remove the lock nut, and remove the pressure regulator. INSTALLATION OF PRESSURE REGULATOR 1. INSTALL PRESSURE REGULATOR Install the pressure regulator and lock nut. Torque the lock nut. Torque: 400 kg-cm (29 ft-lb, 39 N·m) 2. CONNECT NO. 2 FUEL PIPE Install a new gasket, pipe, another gasket and union bolt to the pressure regulator. Torque the union bolt. Torque: 300 kg-cm (22 ft-lb, 30 N·m) 3. CONNECT FUEL HOSE 4. CONNECT VACUUM SENSING HOSE