p0420
yea the dealer said moisture geting through the k&n but i called bs and the last time i took it to them they said i needed a cat which i already knew but they wont listen to me but anyways instead of replacing it with OEM they bought one from napa welded it on and didnt warranty it they internaled it to themselves
if you have this code you cat is gone and for the dealer welding in a cat thats BS they subcontract their weld jobs out to people like midas or meineke we used to do their work they need to put a new downpipe in for you end of story i would have never accepted that
orange yes you will have it from a highflow as well because your downstream o2 sensor isnt seeing what it wants have someone with HPT disable the code so it wont set ur CEL
orange yes you will have it from a highflow as well because your downstream o2 sensor isnt seeing what it wants have someone with HPT disable the code so it wont set ur CEL
Last edited by zrated89; Mar 25, 2009 at 10:40 PM. Reason: Automerged Doublepost
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SprChrg4Life
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Jun 20, 2010 03:15 PM



