For 1990-2009 cars only
Removal Procedure
- Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
- Disconnect the negative battery cable.
- Remove the fuel pressure regulator. Refer to Fuel Pressure Regulator Replacement .
- Disconnect the fuel feeding pipe from the fuel rail.
- Remove the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical.
- Disconnect the fuel injector wiring harness connector.
- Remove the fuel rail assembly.
- Remove the fuel injector retainer clip.
- Remove the fuel injectors by pulling them down and out.
Caution: Refer to Fuel Pressure Notice in the Preface section.
Caution: Refer to Battery Disconnect Caution in the Preface section.
Installation Procedure
- Lubricate the new fuel injector O-rings with engine oil.
- Install the new O-rings on the fuel injectors.
- Install the fuel injectors into the fuel rail sockets with the fuel injector terminals facing outward.
- Install the fuel injector retaining clips onto the fuel injector and the fuel rail ledge.
- Ensure that the clips are parallel to the fuse injector harness connector.
- Install the fuel rail assembly into the cylinder head.
- Connect the fuel injector wiring harness connector.
- Install the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical - 2.5L.
- Connect the fuel feeding pipe to the fuel rail.
- Install the fuel pressure regulator. Refer to Fuel Pressure Regulator Replacement .
- Connect the negative battery cable.
- Perform a leak check of the fuel rail and fuel injectors.
Important: Different injectors are calibrated for different flow rates. When ordering new fuel injectors, be certain to order the identical part number that is inscribed on the old injector.
Notice: Refer to Fastener Notice in the Preface section.
Tighten
Tighten the fuel pressure regulator retaining bolts
to 12 N·m (106 lb in).
