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Recent questions tagged p0420

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1 answer 390 views
P0402 Mercury - 2003 Grand Marquis
asked Jun 18, 2018 by
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1 answer 1.3k views
P0420 TOYOTA tacoma
asked Jun 17, 2018 by
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2008 Volvo V50 2.4L with engine code P0420, what is the meaning?
asked Jun 14, 2018 by
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P0420 and p0420 p
asked Jun 12, 2018 by
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1 answer 267 views
P0420 2006 Nissan Maxima -
asked Jun 10, 2018 by
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1 answer 651 views
Have Codes PO146 andPO420 Replaced 1 Oxygen Sensor Lite is Still On
asked Jun 8, 2018 by
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1 answer 603 views
Nissan says I need to replace my catalytic converter code P0420 for $986 help?
asked Jun 5, 2018 by colleen101 (101 points)
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1 answer 774 views
P0420 2003 Toyota Highlander -
asked Jun 4, 2018 by
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1 answer 393 views
P0420 Buick - Allure
asked Jun 3, 2018 by
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1 answer 278 views
i have a p0420 followed by p0172 c0de
asked Jun 2, 2018 by
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1 answer 433 views
P0455, P0420-Toyota sienna
asked Jun 1, 2018 by
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1 answer 297 views
P0420 GMC -
asked May 31, 2018 by
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2 answers 691 views
What is code p0001 on 2004 Nissan Sentra 2.5L SE R spec 5?
asked May 30, 2018 by
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1 answer 405 views
2011 lincoln MKT code po430 and somtimes it smells like diesel
asked May 29, 2018 by
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2 answers 901 views
What does the code PCM P0420 for a 1998 Cadillac Deville?
asked May 29, 2018 by
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1 answer 332 views
P0420 2007 JEEP 2.4L
asked May 28, 2018 by Snackman1973 (101 points)
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1 answer 317 views
Cadillac deville dts 2002 p0420
asked May 28, 2018 by
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Code 430 keeps appearing in my 1999 Camaro SS. I have new cats, what gives
asked May 27, 2018 by
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