Fuel Injector: Service and Repair

FUEL INJECTOR
Removal / Installation

Warning: Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "Fuel Line Safety Procedures".

1. Disconnect the negative battery cable.
2. Remove in the order shown in the figure.
3. Install in the reverse order of removal, referring to Installation note.




1. Air intake hose
2. Fuel injector connector
3. Fuel hose and fuel pipe
4. Fuel distributor (RH)
5. Fuel distributor (LH)
6. Insulator
7. Accumulated connector
8. Spacer
9. Fuel injector
10. Pressure regulator

Installation note
Fuel injector




1. Apply a small amount of clean engine oil to the new 0-rings, and install them.
2. Verify that the fuel injector holder is clean.
3. Clean the holder with gasoline, if necessary.
4. Install the fuel injector squarely into the distribution pipe while turning it back and forth.

Aligning Injector Tab With Key-Way (Notch) In Fuel Rail:

5. Fit the fuel injector tab into the notch in the distribution pipe.
6. When installing accumulated harness, install the fuel injector as shown in the figure.

Tightening torque:
2.5-3.5 N-m (25-36 kg-cm, 22-31 in-lb)

Fuel injector fitting (Fuel leakage test)

Connect Fuel Hoses As Shown:

1. After installation of the fuel injector, connect fuel hoses as shown in the figure.

View: How To Run Fuel Pump With Jumper Wire:

2. Connect the data link connector terminals F/P and GND with a jumper wire.
3. Turn the ignition switch to ON and check for fuel leaks from the fuel distributor assembly.
4. If leaks are found, reinstall the fuel injector.

Fuel distributor assembly




1. Install new fuel injector insulators.
2. Install the insulators, making sure that each insulator is pressed in fully, and that it is not twisted or bent. Incorrectly installed insulators can cause rough idle.