Corolla 2006-2007

Fuel Rail (Supply Manifold) & Injectors

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Removal & Installation



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

    Negative battery cable
     
    Air cleaner
     
    Accelerator cable bracket from the throttle body
     
    Throttle body from the air intake chamber
     
    Engine hanger and air intake chamber stay
     
    EGR vacuum modulator if so equipped
     
    EGR valve and pipe if so equipped
     
    Air intake chamber cover and gasket
     
    Injector electrical connections
     
    Fuel inlet hose from the delivery pipe
     
    Fuel return hose from the fuel pressure regulator
     
    Fuel delivery pipe (rail)
     
    The 4 insulators and 2 collars from the intake manifold
     
    Injectors
     

  6.  

To install:

  1. Install or connect the following:
    NOTE
    Before installing the injectors back into the fuel rail, install a NEW O-ring on each injector, coated with a light coat of gasoline (NEVER use oil of any sort).


    NOTE
    Make certain each injector can be smoothly rotated. If they do not rotate smoothly, the O-ring is not in its correct position.



    Injectors
     



    Insulators into each injector hole
     
    The two spacers on the delivery pipe mounting holes in the intake manifold
     

  2.  
  3. Place the delivery pipe and injectors on the intake manifold and again check that the injectors rotate smoothly. Position the injector connector upward. Install the two bolts and tighten them to 11 ft. lbs.
  4.  
  5. Install or connect the following:

    Electrical connectors to each injector
     
    Gaskets, the inlet pipe and fuel union bolt. Bolt to 22 ft. lbs.
     
    Air intake chamber cover with a NEW gasket. Torque the retaining bolts in steps to 14 ft. lbs.
     
    All necessary hoses and electrical connections
     
    EGR valve and pipe if so equipped
     
    Engine hanger and air intake chamber stay
     
    EGR vacuum modulator if so equipped
     
    Throttle body. Torque the bolts evenly (in a X-pattern) to 16 ft. lbs.
     
    Accelerator cable bracket to the throttle body
     
    Air cleaner hose and cap
     
    Negative battery cable
     

  6.  

 
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