Fuel Injector: Service and Repair

Fuel Injector Removal and Installation

Removal
1. Relieve fuel pressure.
2. Disconnect negative (-) cable from battery.
3. Remove engine cover.
4. Disconnect PCV valve hose.
5. Disconnect ignition coil connectors and fuel injector connectors.
6. Remove clamp of engine harness from fuel delivery pipe.
7. Remove fuel pipe stopper (1) and disconnect fuel feed pipe (3) from fuel delivery pipe (2).
8. Remove fuel delivery pipe (2).
9. Remove fuel injector(s) (4).






Installation
Reverse removal procedure, noting the following points.
- Replace injector O-ring (1) and cushion (2) with new one.
- Apply thin coat of fuel to O-rings (1), and then install injectors (3) into delivery pipe (4) and cylinder head.
- Tighten delivery pipe bolts (5) to specified torque.

Tightening torque
Fuel delivery pipe bolt (a): 25 N.m (2.5 kg-m, 18.5 lbf-ft)






- Make sure that injectors (1) rotate smoothly (2). If not, probable cause is incorrect installation of O-ring (3). Replace O-ring with new one.






- After installation, with engine stopped and ignition mode of keyless push start system in "ON", check for fuel leaks around fuel line connection.