Fuel Injector: Service and Repair
Injector Replacement1. Relieve fuel pressure.
2. Remove the intake manifold covers and the intake manifold.
Injector Replacement:
3. Disconnect the connectors from the injectors (A).
4. Remove the retainer bolts (D) from the fuel rails (C) and harness holders (E), then replace the O-rings (F).
5. Disconnect the fuel rails.
6. Remove the injectors from the fuel rails.
7. Slide new cushion rings (A) onto the injectors (B).
8. Coat new O-rings (C) with clean engine oil, and put them on the injectors.
9. Insert the injectors into the fuel rails (D).
10. Coat new seal rings (E) with clean engine oil, and press them into the intake manifold.
11. Install the fuel injectors into the intake manifold.
12. Install and tighten the bolts.
13. Install the connectors on the injectors.
14. Install the intake manifold and the intake manifold covers.
15. 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 2 or 3 times, then check for fuel leakage.