Mitsubishi Outlander 2003-06

Fuel Injector Rail (Fuel Supply Manifold)


Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions Section.
  3. Relieve the fuel system pressure.
  5. Disconnect the negative battery cable.
  7. Wrap the connection with a shop towel and disconnect the high pressure fuel line at the fuel rail.
    Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion.

  9. Remove or disconnect the following:

    Air cleaner
    Positive Crankcase Ventilation (PCV) hose
    Capacitor connector
    Ignition coil connectors
    Electrical connector from each injector, label for reference
    Exhaust Gas Recirculation (EGR) valve connector
    Rocker arm (valve) cover bracket bolts
    High pressure fuel hose
    Bolt(s) holding the fuel rail to the manifold. Carefully lift the rail up and remove it with the injectors attached. Take great care not to drop an injector. Place the rail and injectors in a safe location on the workbench; protect the tips of the injectors from dirt and/or impact.
    Injector insulators from the intake manifold, and discard


To install:

  1. Install the fuel rail.
    Make certain that each injector fits correctly into its port and that the rubber insulators for the fuel rail mounts are in position.

  3. Install or connect the following:

    Engine oil to a new O-ring and install on the high pressure fuel line
    High pressure fuel line to the fuel rail. Tighten to 44 inch lbs. (5 Nm).
    Rocker arm (valve) cover bracket bolts
    EGR valve connector
    Fuel injector connectors
    Ignition coil connectors
    Capacitor connector
    PCV hose connector
    Negative battery cable

  5. Pressurize the fuel system and inspect all connections for leaks.

    Click image to see an enlarged view

    Fig. Fuel injector rail and related components