Fuel Injector: Service and Repair

REMOVAL

1. DISCONNECT CABLE FROM NEGATIVE TERMINAL OF BATTERY.

2. REMOVE COLD START INJECTOR PIPE.

3. DISCONNECT VACUUM SENSING HOSE FROM FUEL PRESSURE REGULATOR.

4. DISCONNECT INJECTOR CONNECTORS.






5. DISCONNECT HOSE FROM FUEL RETURN PIPE.

6. REMOVE FUEL PRESSURE PULSATION DAMPER.
Remove the pulsation damper and two gaskets.






7. REMOVE DELIVERY PIPE AND INJECTORS.
a. Remove the two bolts and delivery pipe together with the four injectors.

CAUTION: Be careful not to drop the injectors, when removing the delivery pipe.

b. Remove the four insulators and two spacers from the cylinder head.
c. Pull out the four injectors from the delivery pipe.


INSTALLATION

1. INSTALL INJECTORS AND DELIVERY PIPE.






a. Install a new grommet to the injector.
b. Apply a light coat of gasoline to a new 0-ring and install it to the injector.






c. While turning the injector left and right, install it to the delivery pipe. Install the four injectors.






d. Place the four insulators and two spacers in position or the cylinder head.






e. Place the injectors together with the delivery pipe in position on the cylinder head.
f. Check that the injectors rotate smoothly.

NOTE: If injectors do not rotate smoothly, the probable cause is incorrect installation of 0-rings. Replace the 0- rings.

g. Position the injector connector upward.






h. Install and torque the two bolts.

Torque: 130 kg-cm (9 ft-lb, 13 N.m)






2. INSTALL FUEL PRESSURE PULSATION DAMPER.
Install a new gasket, the hose, a new gasket and the pulsation damper.

3. CONNECT FUEL RETURN HOSE.

4. CONNECT INJECTOR CONNECTORS.

5. CONNECT VACUUM SENSING HOSE.

6. INSTALL COLD START INJECTOR PIPE.

7. CONNECT CABLE TO NEGATIVE TERMINAL OF BATTERY.