p0420 - Chevrolet Forum - Chevy Enthusiasts Forums - Threads Tagged with p0420

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Threads Tagged with p0420

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1500, 1999, 53, 99, chevy, code, fix, o2, p0171, p0174, p0420, po420, sensor, silverado, threads

1999 chev silverado 5.3 code P0171, P0172 and P0420

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Multi-page thread

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MinnesotaBum on September 10th, 2009

October 21st, 2020 9:18 PM
by Zwingsterboss

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10

42,686

Silverado & Fullsize Pick-ups

catalytic converter, p0101, p0404, p0420

Have 3 new codes...are they related?

Hopwall765 on April 8th, 2018

April 11th, 2018 11:55 AM
by Hopwall765

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4

1,189

bad, carlo, catalytic, chevrolet, chevy, code, converter, express, graph, monte, o2, p0420, p0430, p420, sensor, sonic

P0420/P0430 OBD code - what a bad catalytic converter looks like

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CableSux on September 8th, 2013

August 10th, 2017 10:28 PM
by ajmboy

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10

74,482

Express & G-Series Vans

Exclamation

2015, catalytic converters, chevy tahoe, p0420, p0430

2015 Chevrolet Tahoe LT P0430 Diagnostic Code

SalStone on May 25th, 2017

May 25th, 2017 12:50 PM
by SalStone

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0

2,293

Tahoe & Suburban DIY and Useful Threads

check engine light., mil, p0341, p0420

MIL on: codes P0420 and P0341

malibuboo on August 22nd, 2015

August 22nd, 2015 10:25 AM
by malibuboo

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0

4,350

catalytic converter, new exhaust, p0420

Popped P0420 Code After New Exhaust Installed

Drugar123 on April 13th, 2015

April 13th, 2015 9:09 PM
by Drugar123

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4

5,087

Tahoe & Suburban

Exclamation

p0230, p0420, wipers

09 p0230 and p0420 codes + wiper issue

Carve on April 9th, 2015

April 10th, 2015 7:21 AM
by tech2

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1

2,841

p0102, p0103, p0420, p0430, suburban

99 Suburban p0102, 0103, 0420, 0430

robsonak on December 19th, 2014

December 23rd, 2014 7:39 AM
by in2pro

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3

4,641

Tahoe & Suburban

0420, chevy, code, p0410, p0420, solutions, suburban, trigger

Air pump and p0410 & p0420

WBrosVenture01 on March 2nd, 2013

October 26th, 2013 7:50 PM
by WBrosVenture01

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2

5,834

2007, aveo, chevy, codes, p0420

2007 Aveo code p0420 HELP!!!!

zombiebanana88 on September 15th, 2013

September 15th, 2013 5:13 PM
by zombiebanana88

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0

20,121

2002, 98, c1500, catalyst, chevy, efficiency, low, p0420, po200, silverado

2 Attachment(s)

$50 2002 silverado c1500

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Mikereynolds9 on April 2nd, 2013

April 4th, 2013 3:11 PM
by Mikereynolds9

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4,026

Silverado & Fullsize Pick-ups

2005, 99, carlo, chevrolet, chevy, code, codes, dose, ls, lumina, monte, p0171, p0420, p171, ss

Code p0171

Brian99_03 on February 20th, 2013

February 20th, 2013 8:29 PM
by tech2

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1

7,485

Monte Carlo & Lumina

Cool

02, 2002, catalytic, chevy, clogged, converter, cost, install, p0420, recalls, replace, sensor, suburban, tahoe, threshold

2002 Suburban LS - Catalytic Converter

Delray1969 on March 21st, 2012

January 19th, 2013 10:57 AM
by markonion7989

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7

19,868

Tahoe & Suburban

02, 03, 0420, 09, 2003, 2008, 31, aftermarket, chevrolet, chevy, code, converter, malibu, p0420, po420

P0420 Code 4th Converter

franke on December 13th, 2012

December 14th, 2012 3:50 PM
by franke

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4

6,988

Question

actual, code, data, delays, fault, frame, freeze, gm, mastertech, p0420, recording, set, stored, tech, truck

ODB II Freeze Frame Data Help

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Multi-page thread

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Tegnus on July 31st, 2012

September 6th, 2012 12:17 PM
by Tegnus

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13,323

0420, 2003, 38, cap, dies, filler, impala, ls, oil, p0420, pcv, removed, solutions, valve

Stumped!

Dazed & Conused on September 3rd, 2012

September 5th, 2012 5:26 AM
by junkman104

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1

1,940

1500, 1998, c1500, chevy, code, full, p0420, silverado, size

p0420

Rick Blackburn on April 2nd, 2012

April 2nd, 2012 9:01 PM
by MDTAHOE

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1

2,841

Silverado & Fullsize Pick-ups

07, 1999, 2007, chevy, ckt, code, misfire, miss, p0420, pickup, plugs, po420, position, rangeperf, sensor, silverado, spark, tpspedal

2 Attachment(s)

miss and a po420 code on a 07 newstyle silverado

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Multi-page thread

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94racing on February 6th, 2012

February 22nd, 2012 7:38 AM
by 94racing

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16

38,770

Silverado & Fullsize Pick-ups

2001, acceleration, blinks, cableado, chevrolet, chevy, code, de, egr, engine, light, p0420, service, ses, sluggish, time, valve, venture

2001 Venture is Sluggish

cfdengineer on June 24th, 2011

June 26th, 2011 9:34 PM
by my3girlz

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1

4,757

98, chevorlet, chevy, code, dtc, dtcp0420, k1500, mac, p0420, p420, po420, silverado, superchips, tahoe, truck

Dtc p0420

Starboy on May 14th, 2011

May 18th, 2011 10:12 AM
by Starboy

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2

4,746

Silverado & Fullsize Pick-ups

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