Fuel Injector: Service and Repair
Injector Replacement1. Relieve the fuel pressure.
2. Remove the air cleaner.
3. Disconnect the connectors from the injectors (A), the manifold absolute pressure (MAP) sensor (B), the evaporative emissions (EVAP) canister purge valve (C), and the throttle position (TP) sensor (D).
4. Disconnect the quick-connect fittings (E).
5. Disconnect the hoses from the fuel rail (F).
6. Remove the fuel rail mounting nuts (G) from the fuel rail.
7. Remove the injector clip (H) from the injector.
8. Remove the injector from the fuel rail.
9. Coat the new O-rings (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).
10. Install the injector clip (D).
11. Coat the injector O-ring (E) with clean engine oil.
12. Install the injectors into the injector base.
13. Install the fuel rail mounting nuts.
14. Connect the connectors on the injectors, the MAP sensor, the EVAP canister purge valve, and the TP sensor.
15. Connect the quick-connect fittings.
16. Install the air cleaner.
17. Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel pressure in the fuel line rises. Repeat this two or three times, then check for fuel leakage.