Lexus LX470 2002-06

Fuel Rail (Supply Manifold) & Injectors

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Removal & Installation



  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Engine appearance cover
     
    Air intake tube
     
    Fuel lines
     
    Fuel pulsation damper
     
    Fuel pressure regulator vacuum line
     
    Accelerator cable and bracket
     
    Positive Crankcase Ventilation (PCV) valve and hose
     
    Evaporative Emissions (EVAP) vacuum switching valve
     
    Engine appearance cover brackets
     
    Fuel injector harness connectors
     
    Engine harness protector
     
    Fuel supply manifold crossover pipe
     
    Fuel supply manifolds with injectors attached
     
    Fuel injectors
     

  6.  

To install:

  1. Install the fuel injectors to the supply manifold with new O-ring seals and new grommets.
  2.  
  3. Install new injector insulators to the intake manifold.
  4.  
  5. Install or connect the following:

    Fuel supply manifolds with injectors attached. Tighten the bolts to 66 inch lbs. (7.5 Nm).
     
    Fuel supply manifold crossover pipe. Tighten the bolts to 29 ft. lbs. (39 Nm).
     
    Engine harness protector
     
    Fuel injector harness connectors
     
    Engine appearance cover brackets
     
    EVAP vacuum switching valve
     
    PCV valve and hose
     
    Accelerator cable and bracket
     
    Fuel pressure regulator vacuum line
     
    Fuel pulsation damper
     
    Fuel lines
     
    Air intake tube
     
    Engine appearance cover
     
    Negative battery cable
     

  6.  
  7. Start the engine and check for leaks.
  8.  

 
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