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Recent questions tagged p0420

+1 vote
1 answer 25 views
P0420P Code from 2011 Ford Fiesta S
asked Mar 2 by Karat367 (101 points)
+1 vote
1 answer 139 views
Code p0420 is it my o2 sensors
asked Jun 17, 2021 by Will57 (101 points)
0 votes
1 answer 151 views
2008 Toyota Prius, how do I fix fault code P0420 OBDII?
asked Feb 27, 2021 by Deraijo123 (101 points)
0 votes
0 answers 76 views
The car is slipping gears, it has no power, dim light is not working well
asked Jan 13, 2021 by B plus auto (101 points)
0 votes
1 answer 477 views
Code readings p0420 AND p0171 2005 Nissan Altima 2.5s?
asked Mar 15, 2019 by Jordan Berner (101 points)
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1 answer 593 views
Code P0420 on 2014 Nissan Versa Note?
asked Jan 1, 2019 by Lcowan (101 points)
0 votes
1 answer 161 views
2006 Dodge Durango Slt
asked Dec 17, 2018 by Julie Pruett (101 points)
0 votes
1 answer 164 views
can a bad o2 sensor throw a p0420 code in a 2004 beetle 2.0 ltr?
asked Dec 6, 2018 by anonymous
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1 answer 1.4k views
P0420 P0171 Toyota Corolla 2003
asked Dec 1, 2018 by anonymous
+1 vote
1 answer 5.5k views
Cause of (I suspect false) P0420 & P0430 codes in 2002 Toyota Rav4
asked Dec 1, 2018 by anonymous
0 votes
1 answer 1.8k views
P1259 Honda -
asked Dec 1, 2018 by William Prescott
0 votes
1 answer 180 views
P0420 Volkswagen -
asked Nov 25, 2018 by Doug
0 votes
1 answer 224 views
Could P0420 and P0171 be tied to a o2 sensor
asked Nov 25, 2018 by anonymous
0 votes
1 answer 142 views
P0420 Chevrolet -
asked Nov 24, 2018 by al
0 votes
1 answer 149 views
need to see bank one for toyota sianna 2003
asked Nov 23, 2018 by hamadi
0 votes
1 answer 225 views
P0430 Ford -how to replace oxygen 02 sensor
asked Nov 19, 2018 by jay
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