Fuel Injector: Service and Repair

REMOVAL

1. Relieve the fuel pressure.

2. Disconnect the negative battery cable.

3. Disconnect the fuel injector wiring harness.

4. Disconnect fuel lines.

5. Disconnect fuel pressure regulator vacuum line.

6. Remove the fuel line mounting bracket bolt.

Supply Manifold:

7. Remove the fuel rail attaching bolts, spacers, insulators and fuel injection supply manifold with the injectors and fuel pressure regulator attached.

Fuel Injection Supply Manifold and Fuel Injectors:

8. Remove the fuel injectors, grommets and O-rings from the fuel rail.

9. Remove the O-rings from the fuel injectors.

INSTALLATION

Injector and Grommet Position:

1. Position the grommets and new O-rings onto the fuel injectors. Apply a small amount of clean engine oil to the O-rings during installation.

Injector:

2. Position the insulators and fuel injectors in the intake manifold.

3. Position the grommets and fuel rail on the injectors.

4. Install the fuel rail attaching bolts and torque to 19-25 Nm (14-18 lb in).

5. Connect the fuel pressure regulator vacuum line.

6. Connect the fuel lines to the pressure regulator and the fuel injection supply manifold and torque to 8-11 Nm (71-97 lb in).

7. Install the fuel line mounting bracket.

8. Connect the fuel injector wiring harness.

9. connect the negative battery cable.