Nissan Frontier, Xterra 1998-05

Multi-Port Fuel Injection System (MFI)

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Fuel Rail (Supply Manifold) & Injectors



Removal & Installation
2.4L Engine
  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
     
    Air cleaner assembly
     
    Fuel lines
     
    Fuel pressure regulator vacuum line
     
    Fuel injector connectors
     
    Fuel supply manifold with the injectors attached
     
    Fuel injector caps
     
    Fuel injectors
     

  6.  

To install:


NOTE
Use new insulators and O-ring seals for assembly.

  1. Install or connect the following:

    Fuel injectors
     
    Fuel injector caps. Tighten the screws to 26-34 inch lbs. (3-4 Nm).
     
    Fuel supply manifold with the injectors attached. Tighten the bolts to 96-132 inch lbs. (11-15 Nm).
     
    Fuel injector connectors
     
    Fuel pressure regulator vacuum line
     
    Fuel lines
     
    Air cleaner assembly
     
    Negative battery cable
     

  2.  
  3. Start the engine and check for leaks.
  4.  

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

    Negative battery cable
     
    Air cleaner assembly
     
    Fuel lines
     
    Fuel pressure regulator vacuum line
     
    Fuel injector connectors
     
    Fuel supply manifold with the injectors attached
     
    Fuel injector caps
     
    Fuel injectors
     

  6.  

To install:


NOTE
Use new insulators and O-ring seals for assembly.

  1. Install or connect the following:

    Fuel injectors
     
    Fuel injector caps. Tighten the screws to 26-34 inch lbs. (3-4 Nm).
     
    Fuel supply manifold with the injectors attached. Tighten the bolts to 96-132 inch lbs. (11-15 Nm).
     
    Fuel injector connectors
     
    Fuel pressure regulator vacuum line
     
    Fuel lines
     
    Air cleaner assembly
     
    Negative battery cable
     

  2.  
  3. Start the engine and check for leaks.
  4.  

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

    Negative battery cable
     
    Air cleaner assembly
     
    Fuel lines
     
    Fuel pressure regulator vacuum line
     
    Fuel injector connectors
     
    Fuel supply manifold with the injectors attached
     
    Fuel injector caps
     
    Fuel injectors
     

  6.  

To install:


NOTE
Use new insulators and O-ring seals for assembly.

  1. Install or connect the following:

    Fuel injectors
     
    Fuel injector caps. Tighten the screws to 26-34 inch lbs. (3-4 Nm).
     
    Fuel supply manifold with the injectors attached. Tighten the bolts to 96-132 inch lbs. (11-15 Nm).
     
    Fuel injector connectors
     
    Fuel pressure regulator vacuum line
     
    Fuel lines
     
    Air cleaner assembly
     
    Negative battery cable
     

  2.  
  3. Start the engine and check for leaks.
  4.  

  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
     
    Air cleaner assembly
     
    Fuel lines
     
    Fuel pressure regulator vacuum line
     
    Fuel injector connectors
     
    Fuel supply manifold with the injectors attached
     
    Fuel injector caps
     
    Fuel injectors
     

  6.  

To install:


NOTE
Use new insulators and O-ring seals for assembly.

  1. Install or connect the following:

    Fuel injectors
     
    Fuel injector caps. Tighten the screws to 26-34 inch lbs. (3-4 Nm).
     
    Fuel supply manifold with the injectors attached. Tighten the bolts to 96-132 inch lbs. (11-15 Nm).
     
    Fuel injector connectors
     
    Fuel pressure regulator vacuum line
     
    Fuel lines
     
    Air cleaner assembly
     
    Negative battery cable
     

  2.  
  3. Start the engine and check for leaks.
  4.  

 
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