Thread: Help me w/OBD II codes 161,173
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  #5  
Old 03-30-2007, 03:16 PM
manny manny is offline
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
Sounds like a problem in the 12 volt ( O2 sensor heating circuit ).
Turn the ignition on & see if you have 12 volts on one of the terminals of the sensor connector.
If you do, I suspect there is an intermittent " Open " in the sensor.
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2007 C 230 Sport.
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