Fuel Injector: Service and Repair

INJECTOR REMOVAL AND INSTALLATION
1. Release fuel pressure to zero.
2. Disconnect injector harness connectors.
3. Disconnect vacuum hose from pressure regulator.
4. Disconnect fuel hoses from fuel tube assembly.

Removing Fuel Rail:

5. Remove injectors with fuel tube assembly.

Removing Injectors:

6. Push out any malfunctioning injector from fuel tube assembly.

NOTE: Do not extract Injector by pinching connector.

7. Replace or clean injector as necessary.

8. Install injector to fuel tube assembly.

NOTE: Always replace O-rings and Insulators with new ones. Lubricate O-rings with a smear of silicone oil.

Installing Fuel Rail:

9. Install injectors with fuel tube assembly to intake manifold. Tighten fuel tube bolts to the specified torque (in sequence) as shown in image.

Tightening procedure:
1) Tighten all bolts to 9.3 to 10.8 Nm (6.9 to 8.0 ft-lb).
2) Tighten all bolts to 21 to 26 Nm (15 to 20 ft-lb).

10. Install fuel hoses to fuel tube assembly.

NOTE: Lubricate fuel hoses with a smear of silicone oil.

11. Reinstall any parts removed in reverse order of removal.

CAUTION: After properly connecting fuel hose to Injector and fuel tube assembly, check connection for fuel leakage.