Fuel Injector: Service and Repair

Injector Replacement

1. Relieve fuel pressure Service and Repair.

2. Remove the charge air cooler Service and Repair.

3. Disconnect the throttle body 6P connector, then remove the injector cover (A).

4. Disconnect the connectors (B) from the injectors, then remove the harness holder (C) from the fuel rail (D).





5. Disconnect the quick-connect fitting (E).

6. Remove the fuel rail mounting nuts (F), then remove the fuel rail.

7. Remove the injector clips (G) from the injectors.

8. Remove the injectors from the fuel rail.

9. Coat the new O-rings (black) (A) with clean engine oil, then insert the injectors (B) into the fuel rail (C).





10. Install the injector clips (D).

11. Coat the new O-rings (green) (E) with clean engine oil, then install the fuel rail and injectors in the injector base (F).

12. Install the fuel rail mounting nuts (G).

13. Connect the connectors on the injectors, and install the harness holder on the fuel rail.

14. Connect the quick-connect fitting.

15. Turn the ignition switch to ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel rail will be pressurized. Repeat this two or three times, then check for fuel leakage.

16. Reinstall the injector cover, and connect the throttle body 6P connector.

17. Reinstall the charge air cooler Service and Repair.

18. Clear any stored DTCs with the HDS.