Fuel Pressure Regulator: Service and Repair

REMOVAL PROCEDURE

CAUTION: The fuel system is under pressure. To avoid fuel spillage and the risk of personal injury or fire, it is necessary to relieve the fuel system pressure before disconnecting the fuel lines.




1. Relieve the fuel pressure. Refer to "Fuel Pump".
2. Disconnect the negative battery cable.
3. Disconnect the intake air temperature (IAT) sensor connector.
4. Disconnect the breather hose from the valve cover.
5. Remove the air intake tube.
6. Disconnect the vacuum hose from the fuel pressure regulator.
7. Remove the fuel pressure regulator retaining clamp.
8. Remove the fuel pressure regulator by turning it back and forth and then pulling it out.
9. Discard the O-ring.

INSTALLATION PROCEDURE




1. Lubricate a new O-ring. Install the new O-ring onto the fuel pressure regulator body.
2. Insert the fuel pressure regulator into the fuel rail body
3. Install the fuel pressure regulator retaining clamp.

Tighten
Tighten the fuel pressure regulator retaining screw to 12 Nm (106 lb-in).

4. Connect the vacuum hose to the fuel pressure regulator.
5. Install the air intake tube.
6. Connect the breather hose to the valve cover.
7. Connect the IAT sensor connector.
8. Connect the negative battery cable.
9. Perform a leak test of the fuel pressure regulator with the engine OFF and the ignition ON.