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'99-01 models

  1. Remove the intake manifold cover and intake manifold. (see INTAKE MANIFOLD & EXHAUST SYSTEM
  2. Place a shop towel under the fuel pressure regulator, then relieve the fuel pressure. See Fuel Pressure Relieving .
  3. Disconnect the vacuum hose (A) and fuel return hose (B).
    Fig 1: Disconnecting Vacuum Hose
    G01511752Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Loosen the locking nut (C), and remove the fuel pressure regulator (D).
  5. Apply clean engine oil to a new O-ring (E), and carefully install it into its proper position.
  6. Install the fuel pressure regulator into the fuel rail. Turn it by hand until it stops.
    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.
  7. Turn the fuel pressure regulator (A) counterclockwise to set the angle as shown.
    Fig 2: Turning Fuel Pressure Regulator
    G01511753Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Tighten the locking nut to 29 N.m (3.0 kgf.m, 22 lbf.ft).
  9. Install the intake manifold and manifold cover. (see INTAKE MANIFOLD & EXHAUST SYSTEM
  10. 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 fuel leakage.