GSIC - Global Service Information Center

# FUEL PRESSURE REGULATOR > REMOVAL

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1. DISCHARGE FUEL SYSTEM PRESSURE

CAUTION:

1. Do not disconnect any part of the fuel system until you have discharged the fuel system pressure.
2. Even after discharging the fuel pressure, place a cloth or equivalent over fittings as you separate them to reduce risk of fuel spray on yourself or in the engine compartment.

1. Disconnect the cable from the negative (-) battery terminal.

   CAUTION:
     Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

1. Disconnect the fuel pump connector.

1. Connect the cable to the negative (-) battery terminal.

1. Start the engine. After the engine has stopped on its own, turn the ignition switch OFF.

   HINT:
     DTC P0171/25 (system too lean) may be set.

1. Crank the engine again, then check that the engine does not start.

1. Loosen the fuel tank cap, then discharge the pressure in the fuel tank completely.

1. Connect the fuel pump connector.

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION:

  Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

3. REMOVE V-BANK COVER

1. Remove the 2 nuts and cover.

4. REMOVE NO. 2 VENTILATION HOSE

5. REMOVE AIR CLEANER ASSEMBLY

1. Disconnect the vacuum hose.

1. Disconnect the MAF meter connector.

1. Remove the 2 wire harness clamps.

1. Loosen the 2 hose clamps.

1. Remove the 2 bolts and air cleaner.

6. REMOVE INTAKE AIR SURGE TANK

1. Disconnect the No. 5 water by-pass hose.

1. Disconnect the No. 4 water by-pass hose.

1. Disconnect the fuel vapor feed hose assembly.

1. Disconnect the ventilation hose.

1. Disconnect the 2 VSV connectors.

1. Disconnect the throttle motor connector.

1. Remove the 3 wire harness clamps and hose clamp.

1. Remove the 3 upper bolts, which are used to secure the 2 surge tank stays and throttle body bracket.

1. Using an 8 mm hexagon wrench, remove the 4 bolts.

1. Remove the 2 nuts, intake air surge tank and gasket.

7. DISCONNECT NO. 2 FUEL PIPE SUB-ASSEMBLY

1. Remove the fuel pipe clamp.

1. Pinch the tube connector and then pull out the fuel pipe.

   NOTICE:
   2. Check if there is any dirt or mud around the connector before this procedure, Clean if necessary. Foreign matter can affect the quick connector O-ring's seal between the fuel pipe and fuel delivery pipe.
   3. Do not use any tool in this procedure.
   4. Do not bend or twist the nylon tube.
   5. Keep the plug free from foreign objects.
   6. To protect the fuel pipe, cover it with a plastic bag after checking.
   7. When the fuel pipe and fuel pressure regulator are stuck, pinch the nylon tube with fingers, and turn it carefully to free and then disconnect the fuel pipe.

8. REMOVE FUEL PRESSURE REGULATOR ASSEMBLY

1. Remove the 2 bolts and fuel pressure regulator.

1. Remove the vacuum hose.