Fuel Injector: Service and Repair
COMPONENTS
REMOVAL
1. REMOVE V-BANK COVER
2. REMOVE INTAKE AIR CONNECTOR
3. DISCONNECT ACCELERATOR CABLE
4. REMOVE FUEL PRESSURE PULSATION DAMPERS
5. DISCONNECT VVT SENSOR CONNECTORS
6. REMOVE VSV FOR EVAP
7. REMOVE ACCELERATOR CABLE BRACKET
Remove the 2 nuts and accelerator cable bracket.
8. REMOVE 3 V-BANK COVER BRACKETS
a. Disconnect the VSV connector for ACIS from the No.1 V-bank cover bracket.
b. Disconnect the noise filter connector from the noise filter on the No.3 V-bank cover bracket.
c. Remove the 4 bolts and 3 V-bank cover brackets.
9. DISCONNECT ENGINE WIRE FROM DELIVERY PIPE
a. Disconnect the 2 wire clamps from the wire clamp bracket on the RH delivery pipe.
b. Disconnect the 8 injector connectors.
10. REMOVE DELIVERY PIPES AND INJECTORS
NOTE:
- Be careful not to drop the injectors when removing the delivery pipes.
- Pay attention to put any hung load on the injector to and from the side direction.
a. Remove the 4 nuts holding the delivery pipe to the intake manifold.
b. Remove the 2 delivery pipes and 8 injectors assembly and 4 spacers.
c. Pull out the 8 injectors from the delivery pipes.
d. Remove the 2 O-rings, grommet and insulator from each injector.
INSTALLATION
1. INSTALL INJECTORS AND DELIVERY PIPES
NOTE:
- Be careful not to drop the injectors when installing the delivery pipes.
- Pay attention to put any hung load on the injector to and from the side direction.
a. Install a new grommet and new insulator to each injector.
b. Apply a light coat of gasoline to 2 new O-rings and install them to each injector.
c. While turning the injector clockwise and counterclockwise, push it to the delivery pipes. Install the 8 injectors
HINT: Install the injector with cover for No.5, 6, 7 and 8 cylinders
d. Position injector connector outward.
e. Place the 4 spacers on the intake manifold.
f. Place the 8 injectors and 2 delivery pipes assembly in position on the intake manifold.
g. Temporarily install the 4 nuts.
h. Check that the injectors rotate smoothly.
HINT: It injectors do not rotate smoothly, the probable cause is incorrect installation of O-rings. Replace the O-rings.
i. Position injector connector outward.
j. Tighten the 4 nuts holding the delivery pipes to the intake manifold.
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
2. CONNECT ENGINE WIRE TO DELIVERY PIPE
a. Connect the 8 injector connectors.
b. Connect the 2 wire clamps to the wire clamp bracket on the RH delivery pipe.
3. INSTALL VSV FOR EVAP
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
4. INSTALL ACCELERATOR CABLE BRACKET
Install the accelerator cable bracket with the 2 nuts.
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
5. INSTALL 3 V-BANK COVER BRACKETS
a. Install the 3 V-bank cover brackets with the 4 bolts.
Torque: 7.5 N.m (80 kgf.cm, 66 in.lbf)
b. Connect the VSV connector for ACIS to the No.1 V-bank cover bracket.
c. Connect the noise filter connector to the noise filter on the No.3 V-bank cover bracket.
6. CONNECT VVT SENSOR CONNECTORS
7. INSTALL FUEL PRESSURE PULSATION DAMPER
8. CONNECT ACCELERATOR CABLE
9. INSTALL INTAKE AIR CONNECTOR
10. INSTALL V-BANK COVER