Fuel Pressure Regulator: Service and Repair

PROCEDURE

Removal

CAUTION: After affecting any repair that requires disassembly of fuel related components, inspect carefully for fuel leaks upon completion.

1. Disconnect negative terminal cable from battery.

CAUTION: Work must be started after 90 seconds from the time the ignition switch is turned to the LOCK position and the negative (-) terminal cable is discon nected from the battery.

2. Remove intake air connector.





- Disconnect the following hoses:
- Air hose from idle air control valve (1)
- Air hose from air control valve on power steering pump from intake air connector (2)





- Remove the bolt holding the intake air connector to the cylinder head cover.
- Loosen the 2 hose clamps.
- Disconnect the intake air connector from the throttle body and air cleaner hose, and remove the intake air connector.





3. Remove upper high-tension cord cover.
- Remove the 2 bolts.
- Disconnect the front side claw groove of the upper cord cover from the claw of lower cord cover, and remove the upper cord cover.





4. Remove the bolt and the right hand engine wire cover.





5. Disconnect vacuum sensing hose from fuel pressure regulator.





6. 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 towel under the pressure regulator. Slowly loosen the union bolt.





7. Remove fuel pressure regulator.
- Loosen the lock nut.





- Lift up the water bypass hose between the idle air control valve and throttle body and remove the pressure regulator.
- Remove the 0-ring from the pressure regulator.

Installation

1. Install fuel pressure regulator and fuel return pipe.
- Fully loosen the lock nut on the pressure regulator.





- Apply a light coat of gasoline to a new 0-ring, and install it to the pressure regulator.





- Lift up the water bypass hose between the idle air control valve and throttle body, and completely insert the pressure regulator into the delivery pipe by hand.
- Turn the pressure regulator counterclockwise until the vacuum sensing port faces in the direction indicated in the illustration.





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

Torque: 35 Nm (26 ft lb)





- Tighten the lock nut.

Torque: 29 Nm (22 ft lb)





2. Connect vacuum sensing hose to fuel pressure regulator.





3. Install right hand engine wire cover.
- Fit the portions A and B of the engine wire cover, matching them with the lower high-tension cord cover and No.3 timing belt cover.
- Install the engine wire cover with the bolt.





4. Install upper high-tension cord cover.
- Fit portion A of the upper high-tension cord cover matching the top of the lower high-tension cord cover.





- Push the front side of the upper high-tension cord cover, and fit the front side claw groove of the upper high-tension cord cover to the claw of the lower high -tension cord cover.
- Install the upper high-tension cord cover with the 2 bolts.





5. Install intake air connector.
- Connect the end portions of the intake air connector to the throttle body and air cleaner hose.
- Tighten the 2 hose clamps.
- Install the bolt holding the intake air connector to the cylinder head cover.





- Connect the following hoses:
- Air hose to idle air control valve (1)
- Air hose from air control valve on power steering pump to intake air connector (2)
6. Connect negative terminal cable to battery.
7. Check for fuel leaks