Fuel Injector: Service and Repair

COMPONENTS

REMOVAL STEPS

1. INJECTOR CONNECTOR
2. HIGH-PRESSURE FUEL HOSE CONNECTION
3. O-RING
4. FUEL RETURN HOSE CONNECTION
5. VACUUM HOSE CONNECTION
6. FUEL PRESSURE REGULATOR
7. O-RING

8. FUEL RAIL

CAUTION: Do not drop the injector.

Remove the fuel rail with the injectors attached to it.

9. INSULATORS
10. INSULATORS

11. INJECTORS

CAUTION: Do not drop the injector.

Remove the fuel rail with the injectors attached to it.

12. O-RINGS
13. GROMMETS

INSTALLATION STEPS
Installation is in the reverse order of Removal.
1. INJECTOR CONNECTOR

2. HIGH-PRESSURE FUEL HOSE CONNECTION

CAUTION: Do not let the engine oil get into the fuel rail will be damaged.

1. Apply a drop of new engine oil to the O-ring.
2. Turn the injector. To the right and left to install to the fuel rail. Repeat for fuel pressure regulator and high-pressure fuel hose.
Be careful not to damage the O-ring. After installing, check that the item turns smoothly.
3. If it does not turn smoothly, the O-ring may be trapped, remove the item, re-install it into the fuel rail and check again.
4. Tighten the fuel pressure regulator and high-pressure fuel hose to the specified torque.

Tightening torque:
8.8 Nm (78 in-lb)
4.9 Nm (43 in-lb)

3. O-RING
4. FUEL RETURN HOSE CONNECTION
5. VACUUM HOSE CONNECTION
6. FUEL PRESSURE REGULATOR

1. Apply a drop of new engine oil to the O-ring.
2. Turn the injector. To the right and left to install to the fuel rail. Repeat for fuel pressure regulator and high-pressure fuel hose.
Be careful not to damage the O-ring. After installing, check that the item turns smoothly.
3. If it does not turn smoothly, the O-ring may be trapped, remove the item, re-install it into the fuel rail and check again.
4. Tighten the fuel pressure regulator and high-pressure fuel hose to the specified torque.

Tightening torque:
8.8 Nm (78 in-lb)
4.9 Nm (43 in-lb)

7. O-RING
8. FUEL RAIL
9. INSULATORS
10. INSULATORS
11. INJECTORS

1. Apply a drop of new engine oil to the O-ring.
2. Turn the injector. To the right and left to install to the fuel rail. Repeat for fuel pressure regulator and high-pressure fuel hose.
Be careful not to damage the O-ring. After installing, check that the item turns smoothly.
3. If it does not turn smoothly, the O-ring may be trapped, remove the item, re-install it into the fuel rail and check again.
4. Tighten the fuel pressure regulator and high-pressure fuel hose to the specified torque.

Tightening torque:
8.8 Nm (78 in-lb)
4.9 Nm (43 in-lb)

12. O-RINGS
13. GROMMETS