Freestyle 2005-2007

Fuel Rail Pressure & Temperature Sensor

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Removal & Installation



  1. Release the fuel system pressure.
  2.  
  3. Disconnect the battery ground cable.
  4.  
  5. Disconnect the fuel rail pressure and temperature sensor electrical and vacuum connectors.
  6.  
  7. Remove the 2 bolts and the fuel rail pressure and temperature sensor.
  8.  

To install:

  1. To install, reverse the removal procedure. Lubricate the O-ring seal with clean engine oil.
  2.  

  1. Release the fuel system pressure.
  2.  
  3. Disconnect the battery ground cable.
  4.  
  5. Disconnect the fuel rail pressure and temperature sensor electrical and vacuum connectors.
  6.  
  7. Remove the 2 bolts and the fuel rail pressure and temperature sensor.
  8.  

To install:

  1. To install, reverse the removal procedure. Lubricate the O-ring seal with clean engine oil.
  2.  

Testing





Click image to see an enlarged view

Fig. Exploded view of the fuel pressure sensor electrical connector pin locations. Pin 1 is reference voltage and Pin 2 is the signal return



Click image to see an enlarged view

Fig. Exploded view of the fuel pressure sensor pin locations. Pin 2 is reference voltage and Pin 4 is the signal return

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Check all electrical connections are clean and tight. Repair and broken, cracked or loose connections or damaged wiring.
  4.  
  5. Turn the key on and let the engine idle for two minutes.
  6.  
  7. Inspect the fuel rail pressure sensor vacuum hose between the intake manifold and the fuel rail pressure sensor for air leaks and correct connection.
  8.  
  9. Turn the key off.
  10.  
  11. Remove the vacuum hose from the fuel rail pressure sensor. Inspect the fuel rail pressure sensor and vacuum hose for traces of fuel.
  12.  
  13. If fuel is found replace the fuel rail pressure sensor.
  14.  
  15. Turn the key off.
  16.  
  17. Connect a 5 amp fused jumper wire between the Pin 1 on the sensor harness side and Pin 3 on the harness side of the fuel rail pressure sensor.
  18.  
  19. If the voltage greater than 4.5 V- replace the fuel rail pressure sensor.
  20.  

 
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