Honda Accord & Crosstour (2003 - 2012) 2003 - 2012 Honda Accord and Inspire

code P0420 help

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Old Sep 11, 2008 | 09:04 PM
  #1  
bryanj325's Avatar
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From: phoenix, az, maricopa
Default code P0420 help

does anyone how to test the 02 sensors on an 03 accord v6 and the code reader says bank 1 but the book says rear bank for that code ????? would be very thankfull for the help
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Old Sep 13, 2008 | 10:22 AM
  #2  
spoonfedcrx's Avatar
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Default Re: code P0420 help (bryanj325)

thats a cat code
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Old Sep 18, 2008 | 05:53 PM
  #3  
SFlCrx's Avatar
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From: Delray Honda, Florida, USA
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you might be able to fix it with a pcm update. but you need a hds computer to do so. cats are covered for 8/80,000 i beleive.
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Old Sep 19, 2008 | 11:11 AM
  #4  
RXPARTS's Avatar
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From: PHOENIX, AZ, USA
Default Re: code P0420 help (bryanj325)

YUP ITS PROBABLY THE CAT!
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