Ridgeline 2007-2008

Heated Oxygen Sensor

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Operation



Specific to:

Honda Ridgeline 2006-2008

The HO2S detects the oxygen content in the exhaust gas downstream of the warm up three way catalytic converter (WU-TWC), and sends signals to the PCM. To stabilize its output, the sensor has an internal heater. The PCM compares the HO2S output with the A/F sensor output to determine catalyst efficiency.

Removal & Installation



Specific to:

Honda Ridgeline 2006-2008


NOTE
O2 sensor socket wrench, Snap-on YA8875, SP Tools 93750, or equivalent is needed to perform this procedure.

  1. Before servicing the vehicle, refer to the precautions.
  2.  
  3. Disconnect the oxygen sensor connector.
  4.  
  5. Remove the oxygen sensor using the special tool.
  6.  

To install:

  1. Install the parts in the reverse order of removal.
  2.  
  3. Tighten to 33 ft. lbs. (44 Nm).
  4.  

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 HO2S SENSOR in the DATA LIST.
  6.  
  7. Start the engine and allow it to come to operating temperature.
  8.  
  9. If voltage is not within specification as shown in the chart, inspect the connectors and wiring harness.

    Click image to see an enlarged view

    Fig. HO2S sensor voltage chart

  10.  
  11. If no faults are found, replace the sensor.
  12.  

 
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