Fuel Pressure Regulator: Service and Repair
Fuel Pressure Regulator Replacement1. Place a shop towel under the fuel pressure regulator, then relieve fuel pressure.
2. Disconnect the vacuum hose (A) and fuel return hose (B).
3. Loosen the locking nut (C), and remove the fuel pressure regulator (D).
4. Apply clean engine oil to a new O-ring (E), and carefully install it into its proper position.
5. Install the fuel pressure regulator in the fuel joint. Turn it by hand until stops.
6. Turn the fuel pressure regulator (A) counterclockwise to set the angle as shown.
7. Tighten the locking nut to 29 N.m (3.0 kgf.m, 22 lbf.ft).
NOTE:
- Replace the O-ring.
- When assembling the fuel pressure regulator, apply clean engine oil to the O-ring and assemble it into its proper position, taking care not to damage the O-ring.
8. Reconnect the vacuum hose and fuel return hose.
9. Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel pressure in the fuel line rises. Repeat this 2 or 3 times, then check for any fuel leakage.