Toyota Pick-ups/Land Cruiser/4Runner 1989-1996

Fuel Pressure Regulator

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REMOVAL & INSTALLATION



1FZ-FE Engine

See Figures 1, 2 and 3

  1. Depressurize the fuel system.
  2.  
  3. Disconnect the vacuum sensing hose from the pressure regulator.
  4.  
  5. Wrap a towel around the regulator then disconnect the fuel return hose.
  6.  
  7. Loosen the locknut, then remove the regulator. Discard of the O-ring.
  8.  

To install:
  1. Fully loosen the locknut on the regulator.
  2.  
  3. Apply a light coat of gasoline to a new O-ring, then install it onto the regulator.
  4.  
  5. Insert the regulator into the delivery pipe by hand. Turn the regulator counterclockwise until the fuel outlet port faces in the direction indicated.
  6.  
  7. Tighten the locknut to 18 ft. lbs. (25 Nm).
  8.  
  9. Using new gaskets, install the return pipe to the regulator.
  10.  
  11. Connect the vacuum sensing hose.
  12.  
  13. Start the engine and check for any fuel leakage.
  14.  

5VZ-FE Engine

See Figures 4 and 5

  1. Depressurize the fuel system.
  2.  
  3. Remove the air cleaner hose.
  4.  
  5. Remove the intake air connector.
  6.  
  7. Disconnect the fuel return hose from the pressure regulator. Place a shop rag under the regulator to catch any leakage.
  8.  
  9. Remove the bolt holding the engine wire to the left-hand valve cover.
  10.  
  11. Disconnect the protector from the bracket on the right side valve cover, then lift up the engine wire.
  12.  
  13. Remove the 2 bolts, then pull out the regulator. Remove and discard the O-ring from the unit.
  14.  

To install:
  1. Apply a light coat of gasoline to the new O-ring, then install it on the regulator.
  2.  
  3. Attach the regulator to the left side delivery pipe.
  4.  
  5. Check that the pressure regulator rotates smoothly. If it does not, the O-ring may be the cause. Remove the regulator and install a new O-ring.
  6.  
  7. Attach the regulator, then tighten to 71 inch lbs. (8 Nm).
  8.  
  9. Install the engine wire with the bolt.
  10.  
  11. Attach the fuel return hose to the pressure regulator. Be sure not to insert the hose up to the stopper and clip it.
  12.  
  13. Install the intake air connector.
  14.  
  15. Install the air cleaner hose.
  16.  
  17. Start the engine and check for leaks.
  18.  



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Fig. Fig. 1: The regulator is in plain view, on top of the fuel rail-1FZ-FE engine



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Fig. Fig. 2: Install the new O-ring with a light coat of gasoline on it



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Fig. Fig. 3: The regulator must be properly aligned on the delivery pipe



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Fig. Fig. 4: Exploded view of the components which must be removed to access the fuel pressure regulator



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Fig. Fig. 5: The O-ring must be placed correctly onto the regulator or the unit will not fit properly

 
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