Fuel Pressure Regulator: Service and Repair

COMPONENTS FOR REMOVAL AND INSTALLATION

FUEL PRESSURE REGULATOR REMOVAL
1. Remove throttle body.





2. Disconnect vacuum sensing hose from fuel pressure regulator.
3. Disconnect fuel return pipe from fuel pressure regulator.
- Remove the union bolt and 2 gaskets, and disconnect the return pipe from the pressure regulator.

CAUTION:
- Put a shop rag under the pressure regulator,
- Slowly loosen the union bolt.

4. Remove fuel pressure regulator.





(a) Remove the 2 bolts, and pull out the pressure regulator.
(b) Remove the O-ring from the pressure regulator.

FUEL PRESSURE REGULATOR INSTALLATION
1. Install fuel pressure regulator.





(a) Apply a light coat of gasoline to a new O-ring, and install it to the pressure regulator.
(b) Attach the pressure regulator to the delivery pipe.





(c) Check that the pressure regulator rotates smoothly.

NOTICE: If it does not rotate smoothly. the O-ring may be pinched, so remove the pressure regulator and do steps (b) and (c) above again.





(d) Install the pressure regulator with the 2 bolts.

Torque: 8.8 N.m (90 kgf.cm, 78 in..lbf)

2. Connect fuel return pipe to fuel pressure regulator.
- Install the return pipe with 2 new gaskets and the union bolt.

Torque: 27 N.m (280 kgf.cm, 20 ft.lbf)

3. Connect vacuum sensing hose to fuel pressure regulator.
4. Install throttle body.
5. Check for fuel leaks.