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PRESSURE REGULATOR INSPECTION

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1. Complete the "BEFORE REPAIR PROCEDURE". (See BEFORE REPAIR PROCEDURE.)

2. Disconnect the negative battery cable.

3. Perform the following procedure for easier access.

  (1) Disconnect the PCM connector, MAF sensor connector, and IAT sensor connector.
  (2) Remove the air cleaner cover.
  (3) Disconnect the HO2S sensor connector.
  (4) Set the wiring harness bracket out of the way.

4. Disconnect the quick release connector. (See FUEL HOSE (ENGINE ROOM SIDE) REMOVAL/INSTALLATION.)

5. Turn the SST lever parallel to the hose as shown in the figure.

6. Insert the SST quick release connector into the fuel pipe until a click is heard.

7. Verify that the quick release connector is firmly connected by pulling it by hand.

8. Connect the disconnected connector.

9. Remove the air cleaner cover and put it out of the way.

10. Start the engine and idle it.

11. Measure the fuel line pressure after 2 min.

  • If not within the specification, perform the fuel line pressure inspection.

Fuel line pressure

  210-250 kPa {2.2-2.5 kgf/cm2, 31-36 psi}

12. Pull out the pressure regulator vacuum hose.

13. Measure the fuel line pressure.

  • If not within the specification, replace the pressure regulator.

Fuel line pressure

  274-304 kPa {2.8-3.0 kgf/cm2, 40-44 psi}

14. Disconnect the SST.

15. Connect the quick release connector. (See FUEL HOSE (ENGINE ROOM SIDE) REMOVAL/INSTALLATION.)

16. Complete the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE.)