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  1. 2009-2011 Pilot
    Honda Pilot 2009 with 217xxx miles on it. Both P0420 and P0430 codes got shown yesterday. Researched a lot and figured I should buy OBD2 scanner with live data to see the output of downstream O2 sensors. Bank 1 sensor had a perfect flat line around 700-ish mV (don't know why P0420 showed up)...
  2. 2003-2008 Pilot
    My check engine light just came on right after I had the oil pan resealed, the valve cover gaskets replaced, and the oil filter housing. I don't know if there is any relation. I got Code P0137 Oxygen Sensor Low Voltage Bank 1 Sensor 2. I have a 2006 Honda Pilot LX with 157,000 miles on it...
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