Fuel Injector Removal and Installation

Fuel Injector Removal and Installation

Fuel Injector On-Vehicle Inspection

Removal

1) Relieve fuel pressure. Service and Repair
2) Disconnect negative (-) cable at battery.
3) Remove engine cover. Air Cleaner Assembly Removal and Installation
4) Disconnect fuel injector connectors.
5) Disconnect fuel feed hose (4) from fuel delivery pipe (1).
6) Remove fuel delivery pipe bolts (2).
7) Remove fuel injector(s) (3).






Installation

Fuel Injector Inspection

Reverse removal procedure for installation noting the following.

- Replace injector O-ring (1) with new one using care not to damage it.
- Check if cushion (2) is scored or damaged. If it is, replace 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 Nm (2.5 kgf-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 stationary and ignition switch in ON position, check for fuel leaks around fuel line connection. Fuel Leakage Check Procedure