p0420 - Hummer Forums - Enthusiast Forum for Hummer Owners - Threads Tagged with p0420

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Threads Tagged with p0420

Threads Tagged with p0420

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02, bypass, chip, error, forum, h2, hummer, long, module, o2, oxygen, p0420, reading, sencers, sensor, simulator

O2 simulator

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1 2)

Trailermedic on Aug 13, 2011

Jul 30, 2014 12:59 PM
by Astro5169

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12

12,018

2008, catalyst, efficiency, fuel, h3, hummer, o2, p0420, readings, sensor, system, threshold, trim, values

Need to know O2 Sensor normal values for 2008 H3

CJI on Dec 1, 2013

Dec 1, 2013 10:51 PM
by CJI

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4,210

PRIVATE For Sale / Trade Classifieds

2006, 2007, catalytic, code, converter, dtc, h2, h3, hummer, p0420, po420, replaces, retard, spark, timing

P0420 Code thrown. Help!

NA-Stang on Oct 18, 2012

Oct 27, 2012 11:43 AM
by nelsontj

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5

24,257

PRIVATE For Sale / Trade Classifieds

02, 2008, catalytic, code, converter, covered, escalade, h2, h3, hummer, knock, p0420, restriction, sensor, sut, video, warrantyfor

P0420 code.

AndyMac on Jun 6, 2010

Jun 6, 2010 11:12 PM
by VegasGuy

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3

20,624

PRIVATE For Sale / Trade Classifieds

0420, 2008, code, coolant, engine, escalade, esclade, h2, h3, hummer, normal, operating, p0420, po420, sensor, specs, temp, temparture

P0420 code

pteam on Sep 15, 2008

Sep 15, 2008 07:39 PM
by pteam

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7,539

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