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01-22-2007, 07:15 PM
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#1 | |
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AF Enthusiast
Join Date: Mar 2005
Location: Rochester, New York
Posts: 738
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Code p0420
I just got a code p0420 on my 04 Legacy (86,000 miles). I know this points to the cat but is that definitive? Could it be a bad O2 sensor or something else? What are my options here? This is an unmodified daily driver, by my wife, so major mods are out of the question.
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2004 Explorer XLT 4.0L 4x4 1998 Ranger Supercab 4x2 3.0L Anyone who said There Is No Such Thing As A Stupid Question never worked in a grocery store! Come visit me on www.faceforums.com |
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01-22-2007, 09:36 PM
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#2 | |
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Horizontally Opposed
 Join Date: Mar 2001
Location: Las Vegas, Nevada
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Re: Code p0420
Ouch. I just got a new cat with that code under the federal emissions warranty, which goes to 80,000 miles. So you just missed that.
The cats just burn out after a while, and our smart friends at Subaru (and most other car makers, too) made them just good enough to get past the mark. When it's cool, reach under and bang on it and see if there's anything rattling in the pipes. When they go bad, the guts degrade and flow downstream. How's your gas mileage? |
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