California Models

PROCEDURE

1. Verify the battery voltage is above 12 volts.
2. Disconnect negative (-) terminal cable from the battery.

CAUTION: Work must be started after 90 seconds from the time the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery.

3. Remove the union bolt holding the left hand delivery pipe to the rear fuel pipe. Remove the 2 gaskets.

CAUTION: Put a shop towel under the delivery pipe. Slowly loosen the union bolt.





4. Install the rear fuel pipe and pressure gauge to the left hand delivery pipe with 3 new gaskets and the union bolt. (SST 09268-45012)

Torque: 39 Nm (29 ft lb)

5. Wipe off any splattered gasoline.
6. Install the filter to the vacuum switching valve for exhaust gas recirculation.





7. Using jumper, connect terminals B and FP of the data link connector 1. (SST 09843-18020)
8. Reconnect the cable to the negative (-) terminal of the battery.
9. Turn the ignition switch ON.





10. Measure the fuel pressure.

Fuel pressure: 265 - 304 kPa (38 - 44 psi)

If pressure is high, replace the fuel pressure regulator. If pressure is low, check the following parts:
- Fuel hoses and connections.
- Fuel pump.
- Fuel filter.
- Fuel pressure regulator.





11. Remove the jumper from the data link connector 1. (SST 09843-18020)
12. Start the engine.





13. Disconnect the vacuum sensing hose from the fuel pressure regulator, and plug the hose end.
14. Measure the fuel pressure at idle.

Fuel pressure: 265 - 304 kPa (38 - 44 psi)





15. Reconnect the vacuum sensing hose to the fuel pressure regulator.
16. Measure the fuel pressure at idle.

Fuel pressure: 196 - 235 kPa (28 - 34 psi)

If pressure is not as specified, check the vacuum sensing hose and fuel pressure regulator.
17. Stop the engine. Check that the fuel pressure remains 147 kPa (21 psi) or more for 5 minutes after the engine is turned off.
- If pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
18. After checking fuel pressure, disconnect the battery negative (-) cable carefully remove the fuel pressure gauge to prevent gasoline from splashing.
19. Connect the rear fuel pipe to the delivery pipe with 2 new gaskets and the union bolt.

Torque: 39 Nm (29 ft lb)

20. Reconnect negative (-) terminal cable to the battery.
21. Check for fuel leaks.