Ridgeline 2007-2008

Manifold Absolute Pressure Sensor

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Operation



Specific to:

Honda Ridgeline 2006-2008

The manifold absolute pressure (MAP) sensor senses manifold absolute pressure (vacuum) and converts it into electrical signals. The MAP sensor outputs low signal voltage at high-vacuum (idling) and high signal voltage at low-vacuum (throttle valve wide open). The powertrain control module (PCM) compares a predetermined MAP value at a given throttle position and manifold absolute pressure to the output voltage value of the MAP sensor. If the MAP sensor outputs lower voltage than expected, the PCM detects a malfunction and stores a DTC.

Removal & Installation



Specific to:

Honda Ridgeline 2006-2008

  1. Before servicing the vehicle, refer to the precautions.
  2.  
  3. Remove the intake manifold cover.
  4.  
  5. Disconnect the MAP sensor connector.
  6.  
  7. Remove the screw.
  8.  
  9. Remove the MAP sensor.
  10.  

To install:

  1. Install the parts in the reverse order of removal with a new O-ring.
  2.  

Testing



Specific to:

Honda Ridgeline 2006-2008

  1. Connect an HDS or equivalent scan tool to the data link connector (DLC) located under the driver's side of the dashboard.
  2.  
  3. Turn the ignition switch ON .
  4.  
  5. Check the MAP SENSOR in the DATA LIST.

    Click image to see an enlarged view

    Fig. MAP sensor output voltage chart

  6.  
  7. If voltage is not as specified in the chart, inspect the connectors and wiring harness.
  8.  
  9. If no faults are found, replace the sensor.
  10.  

 
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