Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Acura 3.5RL 1996-2004 Approved srm RL9604S11135A

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             Main Menu                 Table of Contents




Fuel Pressure Regulator
Description                                                  Testing
The fuel pressure regulator maintains a constant fuel
pressure to the injectors. When the difference between                    Do not smoke during the test. Keep open
the fuel pressure and manifold pressure exceeds 294          flames away from your work area.
kPa (3.0 kgf/cm 2 , 43 psi), the diaphragm is pushed
upward, and the excess fuel is fed back into the fuel tank   1.    Attach a fuel pressure gauge to the service port of
through the return line.                                           the fuel filter (see page 11-132).

CLOSED:                                                      2.     Start the engine.

                                                                   Pressure should be:
                                                                   299 - 348 kPa (3.05 - 3.55 kgf/cm2, 43-50 psi)
                                                                   (with the fuel pressure regulator vacuum hose dis-
                                                                   connected and pinched)




                                                                                                         FUEL
                                                                                                         PRESSURE
                                                                                                         GAUGE
   DIAPHRAGM
                                                                                                         07406 - 0040001

                                                                  FUEL
                                                                  PRESSURE
                                                                  REGULATOR




                                                                                                               FUEL FILTER

                     FUEL INLET


OPEN:



To
INTAKE
MANIFOLD




                                                  FUEL
                                                  RETURN
                                                             3.    Reconnect the vacuum hose to the fuel pressure
                                                                   regulator.

                                                             4.    Check that the fuel pressure rises when the vacuum
                                                                   hose from the fuel pressure regulator is disconnect-
                                                                   ed again.

                                                                   If the fuel pressure did not rise, replace the fuel pres-
                                                                   sure regulator.
                     FUEL INLET



                                                                                                                   (cont'd)




                                                                                                              11-135
                Main Menu                  Table of Contents


Fuel Supply System
 Fuel Pressure Regulator (cont'd)
 Removal                                                       Reassembly

              Do not smoke while working on fuel sys-          1.   Install the fuel pressure regulator in the fuel rail. Turn
 tem. Keep open flame away from your work area.                     it by hand until it stops.

 1.   Remove the strut bar.                                    2.   Turn the fuel pressure regulator counterclockwise to
                                                                    set the angle as shown.
 2.   Remove the engine cover.
                                                               3.   Tighten the locking nut.
 3.   Relieve fuel pressure (page 11-132).

 4.   Disconnect the vacuum hose and fuel return hose.

 5.   Loosen the locking nut, and remove the fuel pres-
      sure regulator.
                                                                                                                  FUEL RAIL



                      WASHER




                 O-RING
                 Replace.
                                                                    NOTE:
                              LOCKING NUT
                              29 N-m (3.0 kgf-m,                    

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