Fuel Injector Removal and Installation

Fuel Injector Removal and Installation

Fuel Injector On-Vehicle Inspection

Removal

CAUTION:

A small amount of fuel may be released when it is removed from delivery pipe.

Place a shop cloth under delivery pipe so that released fuel is absorbed in it.

1) Relieve fuel pressure according to Fuel Pressure Relief Procedure Fuel Pressure Relief Procedure.
2) Remove engine cover referring to Engine Cover Removal and Installation.
3) Disconnect couplers from each injector.
4) Remove delivery pipe from cylinder head.
5) Remove fuel injector.

Installation

Fuel Injector Inspection
1) Replace injector O-ring (3) with new one using care not to damage it. Install grommet (2) to injector.
2) Check if insulator (1) is scored or damaged. If it is, replace with new one.

Install insulators and cushions (4) to cylinder head.





3) Apply thin coat of fuel to O-rings (1) and then install injectors into delivery pipe and cylinder head.

Make sure that injectors rotate smoothly. If not, probable cause is incorrect installation of O-ring. Replace O-ring with new one.
4) Tighten delivery pipe bolts (3) to specified torque and make sure that injectors rotate smoothly.

Tightening torque
Fuel delivery pipe bolts (a): 25 Nm (2.5 kgf-m, 18.0 lbf-ft)









5) Connect couplers to injector securely and clamp injector wire.
6) Install engine cover referring to Engine Cover Removal and Installation.
7) With engine "OFF" and ignition switch "ON", check for fuel leaks around fuel line connection.