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Recent questions tagged p0420

0 like 0 dislike

1 answer 501 views

P0420 Dodge - I reset the check engine light and it would run almost all day with out it on

asked Sep 25, 2017 by anonymous

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1 answer 635 views

P0420 Cadillac - 2004 Deville

asked Sep 24, 2017 by Mike

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1 answer 449 views

new exhaust applied week ago on my town and country, p0420 still?

asked Sep 24, 2017 by jalal

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2 answers 888 views

I have a code P0420 on my 1998 Honda Civic 1.8L, what could possibly be?

asked Sep 23, 2017 by anonymous

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1 answer 745 views

P0430 HYUNDAI -

asked Sep 21, 2017 by anonymous

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1 answer 428 views

why check engine light on after removing the catalyst converters?

asked Sep 20, 2017 by MAT

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1 answer 581 views

P0430 Chevrolet - Changed both O2 sensors and Cat

asked Sep 18, 2017 by Tony

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1 answer 535 views

P0420 2010 Nissan Rogue. Replaced converter, service light still on.

asked Sep 17, 2017 by Darlene

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1 answer 513 views

I am getting codes P0430, P0420, P0138 on my 2007 Ridgeline, should I replace my cat?

asked Sep 11, 2017 by dan

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1 answer 1.1k views

Toyota Tacoma 2.4L with obd codes, p0420, p0442, p0456. could all three be because of the same leak?

asked Sep 10, 2017 by anonymous

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1 answer 200 views

4P0420service engine soon is blinking

asked Sep 9, 2017 by francisco

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1 answer 659 views

05 xterra codes p1148 & p0420

asked Sep 9, 2017 by Sergio

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0 answers 367 views

I'm receiving multiple codes. p1110, p0420, p0302.

asked Sep 6, 2017 by anonymous

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1 answer 249 views

1997 Ford Taurus ??

asked Sep 6, 2017 by Gordon

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1 answer 748 views

P0420 Subaru - What should next step be?

asked Sep 4, 2017 by anonymous

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1 answer 424 views

can replacing the o2 senser help fix code po401 and code po420

asked Sep 2, 2017 by anonymous

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1 answer 1.0k views

P0430 Nissan -will adding fuel injector cleaner temporarily cause p0420 and p0430m

asked Aug 28, 2017 by rich

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1 answer 825 views

P0420 Pontiac - G6 2.4L Air Filter

asked Aug 28, 2017 by anonymous

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1 answer 386 views

Code p0420, does that mean a/f or o2 on bank 1 for a murano 2006 rhd

asked Aug 27, 2017 by Hobby.03.

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1 answer 514 views

i have a 2001 gmc 1500 5.3 it is giving codes P0135 and P0420

asked Aug 26, 2017 by Steve

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