Mazda MPV 1999-06

Fuel Injectors

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Removal & Installation



2.5L & 3.0L 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 housing and fresh air duct
     
    Mass Air Flow (MAF) sensor
     
    Intake manifold
     
    Fuel injector harness connectors
     
    Fuel lines
     
    Pressure regulator vacuum hose
     
    Fuel supply manifold with injectors attached
     
    Fuel injectors
     

  6.  

To install:

  1. Install or connect the following:

    Fuel injectors with new O-ring seals
     
    Fuel supply manifold with injectors attached. Tighten the bolts to 72-101 inch lbs. (8-11 Nm).
     
    Pressure regulator vacuum hose
     
    Fuel lines
     
    Fuel injector harness connectors
     
    Intake manifold
     
    MAF sensor
     
    Air cleaner housing and fresh air duct
     
    Negative battery cable
     

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

2.5L Engine
  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 housing and fresh air duct
     
    Mass Air Flow (MAF) sensor
     
    Intake manifold
     
    Fuel injector harness connectors
     
    Fuel lines
     
    Pressure regulator vacuum hose
     
    Fuel supply manifold with injectors attached
     
    Fuel injectors
     

  6.  

To install:

  1. Install or connect the following:

    Fuel injectors with new O-ring seals
     
    Fuel supply manifold with injectors attached. Tighten the bolts to 72-101 inch lbs. (8-11 Nm).
     
    Pressure regulator vacuum hose
     
    Fuel lines
     
    Fuel injector harness connectors
     
    Intake manifold
     
    MAF sensor
     
    Air cleaner housing and fresh air duct
     
    Negative battery cable
     

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

3.0L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Relieve the fuel system pressure.
  6.  
  7. Remove or disconnect the following:

    Negative battery cable
     
    Fresh air duct
     
    Air intake hose
     
    Air cleaner assembly
     
    Mass Air Flow (MAF) sensor
     
    Accelerator cable
     
    Cruise control cable
     
    Idle Air Control (IAC) valve connector and hoses
     
    Bypass air solenoid valve connector, if equipped
     
    Vacuum solenoid valve connectors
     
    Upper radiator hose
     
    Heater hose
     
    Bypass hose
     
    Intake manifold vacuum lines
     
    Upper intake manifold
     
    Fuel lines
     
    Fuel supply manifold with injectors attached
     
    Fuel injectors
     

  8.  

To install:

  1. Install or connect the following:

    Fuel injectors with new O-ring seals
     
    Fuel supply manifold. Tighten the nuts to 14-18 ft. lbs. (19-25 Nm).
     
    Fuel lines
     
    Upper intake manifold with injectors attached. Tighten the bolts to 70-95 inch lbs. (8-11 Nm).
     
    Intake manifold vacuum lines
     
    Bypass hose
     
    Heater hose
     
    Upper radiator hose
     
    Vacuum solenoid valve connectors
     
    Bypass air solenoid valve connector, if equipped
     
    IAC valve connector and hoses
     
    Accelerator cable
     
    Cruise control cable
     
    MAF sensor
     
    Air cleaner assembly
     
    Air intake hose
     
    Fresh air duct
     
    Negative battery cable
     

  2.  
  3. Fill the cooling system.
  4.  
  5. Start the engine and check for leaks.
  6.  

 
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