po420 - AcuraZine - Acura Enthusiast Community - Threads Tagged with po420

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Threads Tagged with po420

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0420, 2005, acura, aftermarket, cleaner, clear, code, converter, flow, fuel, gas, high, higher, injector, octane, p0420, po420, quality, spec, tsx

1 Attachment(s)

Help with P0420 code

kmk42019 on Jan 27, 2011

Feb 3, 2020 11:28 AM
by ALEMIKA

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28

129,009

1G TSX Problems & Fixes

14, 96, acura, additives, check, engine, fix, gal, gasoline, integra, light, p0420, po420, seafoam, tank, tl, treatment

P0420 caused bu sea foam?

nikkwins on Sep 16, 2012

Sep 19, 2014 02:41 PM
by YeuEmMaiMai

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15

24,345

3G TL Problems & Fixes

07, 2004, 2005, 35l, accord, acura, code, mdx, p0171, p0174, p0420, p0430, po171, po420, tl

p0420 p0430 p0171 p0174

Chans on Mar 9, 2014

Apr 27, 2014 10:13 AM
by Chans

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17

11,660

2G RL (2005-2012)

Exclamation

2000, 2002, acura, celica, cl, code, exhaust, gt, leak, p0420, po420, reflashing, rsx, subaru, tl

P0420 will not clear. Need major help please.

RCB1701A on Nov 30, 2006

Jul 11, 2012 02:51 PM
by dghokie

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22

33,645

1G CL Problems & Fixes

03, 1999, 430, acura, acurazine, code, foam, kn, mdx, p0420, p0430, po420, po430, sea, seafoam, tl

P0420 P0430 codes thrown ...

3GTLCHICK on Jun 5, 2012

Jun 15, 2012 12:03 AM
by DANELSON

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6

5,877

3G TL Problems & Fixes

2004, 2006, acura, acurazine, cel, code, crv, decipher, honda, mdx, p0420, po420, radio, rsx, tl

Cel p0420

DANELSON on May 31, 2012

Jun 4, 2012 11:36 PM
by DANELSON

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5

2,862

3G TL Problems & Fixes

Unhappy

02, 98, acura, cat, cl, p0141, p0420, po420, power, pre, recline, rl, seat, tl, type

New TL owner list of issues.

jacksonmullet on Jan 31, 2012

Feb 1, 2012 11:37 AM
by TLer trash

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6

2,834

2G TL (1999-2003)

Unhappy

03, 420, acura, cel, check, cl, code, codes, engine, inspection, light, o2, pass, po420, rdx, rsx, simulators

The dreaded PO420 Check engine light

yankeeacura on Aug 20, 2011

Aug 23, 2011 02:04 PM
by alexh1266

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3

3,807

2G TL (1999-2003)

1999, 2000, 23, 420, 98, acura, cl, code, control, idle, integra, ls, malfunctio, po420, po505, system

Code PO420 & PO505 1999 acura cl 2.3

lulu10 on Aug 10, 2011

Aug 10, 2011 11:45 AM
by civicdrivr

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2

3,794

2G CL Problems & Fixes

01, 0420, 2000, 2005, acura, bank, catalytic, code, converter, dopes6070, expensive, location, p0420, po420, rl, rsx, sensor

05 RL 95K miles P0420

Dopes6070 on Jan 6, 2010

Jul 7, 2011 09:37 PM
by jbirch2000

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7

10,279

2G RL (2005-2012)

06, 1999, 99, acura, acurazine, check, code, dtc, engine, light, mdx, nissan, p0420, po420, tl

check engine light with po420

max1995 on Jan 11, 2010

May 27, 2011 10:58 AM
by 01tl4tl

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11

6,856

2G TL Problems & Fixes

04, acura, cleaning, codes, fuel, injector, o2, p0138, p0139, po139, po420, rsx, sensor, tl, upstream

P0420, p0138, p0139

Toddy on Jan 31, 2011

Feb 19, 2011 11:40 AM
by mrdrdtl

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8

17,223

3G TL Problems & Fixes

2005, 2007, acura, cat, cats, code, mdx, p0420, po420, rdx, replacement, rl, rreplacement, tl, tsx

P0420 code need cat replacement

hjsmear on Jan 12, 2011

Jan 12, 2011 01:11 PM
by SharksBreath

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1

2,166

3G TL Problems & Fixes

420, acura, cl, code, codes, de, driller, fouler, install, mdx, plug, po, po420, spark, trick

PO420 code. De-fouler install

jims3.0 on Nov 30, 2010

Dec 5, 2010 10:08 PM
by jims3.0

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3

10,467

1G CL Problems & Fixes

2001, 2002, 2003, acura, aftermarket, cat, cl, code, codes, defouler, mdx, ntegra, p0420, po420, rl, tl, type

Aftermarket Cat & code P0420

fuzzy02CLS on Oct 18, 2010

Nov 12, 2010 12:25 PM
by civicdrivr

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8

3,095

2G CL (2001-2003)

06, 2006, acura, acure, autozone, check, code, engine, light, p0420, po420, rdx, sensor, ses, tl

2006 Acura TL Check Engine Light p0420

karcich on Oct 4, 2010

Oct 28, 2010 07:56 AM
by karcich

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3

27,271

3G TL Problems & Fixes

2004, 23, 98, acura, aftermarket, bank, cat, cl, defouler, degouler, integra, location, o2, p0420, po420, sensor, tl

PO420 - Bank 1....already replaced cat

noobiecl on Aug 20, 2010

Aug 26, 2010 10:17 PM
by 97BlackAckCL

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7

4,761

1G CL Problems & Fixes

1996, 2006, acura, catalyst, code, efficiency, failure, integra, mdx, nissan, p0420, po420, system, threshold, tl

p0420 Catalyst System Efficiency Below Threshold

lankanboy1 on Sep 16, 2009

Sep 21, 2009 09:10 PM
by lankanboy1

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18

12,590

3G TL (2004-2008)

00420, 04, 06, 1078, 2004, 2005, 99, acura, code, codes, needed, p0420, pd, po420, tl, tsx

code p0420 2005 Tl :<

lankanboy1 on Jun 1, 2009

Jun 1, 2009 09:09 AM
by Tumbleweed13

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6

5,503

3G TL (2004-2008)

1999, 23, 99, accura, acura, cl, code, ep3, exhaust, headers, p0420, po420

code po420

checkmate01 on Dec 29, 2008

Jan 6, 2009 09:38 PM
by CelestialRL05

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5

1,467

1G CL Problems & Fixes

0420, 1998, 1999, 2004, acura, acuracl, cl, code, egr, honda, mdx, p0420, po420, rsx, seafoam, tl

code p0420

JeniferluvsAcuras on Oct 14, 2008

Oct 14, 2008 10:19 PM
by sbuswell

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3

2,082

2G TL Problems & Fixes

04, 2004, acura, acurazine, aftermarket, alarm, cat, code, false, mdx, p0420, pipes, po420, test, testpipes, tsx

P0420 + aftermarket cat

lcrazyaznl on May 16, 2008

May 17, 2008 09:41 AM
by dBski11

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3

2,484

1G TSX Problems & Fixes

1999, 99, acura, cat, cleaner, dtc, fuel, gumout, installation, p0420, po420, regane, rt, system, tl

P0420 code 800 miles after RT Cat install

sbuswell on Feb 25, 2008

Feb 26, 2008 09:52 PM
by sbuswell

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6

1,987

2G TL (1999-2003)

Thumbs up

2002, acura, boys, carbon, celica, code, dodge, eclipse, mdx, neon, p0420, pep, po420, toyota, vacuum

2 different answers from 2 mechanics

GUnitHonda on Feb 15, 2008

Feb 17, 2008 10:03 AM
by bRunCL

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8

1,490

1G CL (1997-1999)

2000, 99, acura, cat, cats, code, p0420, po420, pops, random, replaced, tech, technology, tl, vibrate

99 TL changed out Cat - still getting P0420

zboys on Feb 9, 2007

Aug 28, 2007 02:21 AM
by Gfaze

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10

2,391

2G TL (1999-2003)

1996, 2004, acura, code, eliminator, integra, mil, o420, po420, tl

Code PO420

RhInoSpOrt on Oct 10, 2006

Oct 11, 2006 06:23 PM
by KrayzieDxC

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2

1,181

1G TL (1996-1998)

027, 03027, 1999, 2004, acura, check, cl, engine, honda, light, mdx, p0420, po420

SB#03-027: Check Engine Light- P0420

loud_whispers on Jan 4, 2006

Jan 4, 2006 06:56 PM
by loud_whispers

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0

1,071

2G TL Problems & Fixes

Exclamation

2005, acura, acurazine, diagnostic, obd, obdp0420, odb, p0420, po420, rsx, tl, tsx

Engine light: OBD P0420

AcuraTL99 on May 7, 2005

May 7, 2005 03:09 PM
by Street Spirit

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2

1,193

2G TL (1999-2003)

199, 1999, 2004, 420, acura, catalytic, code, converter, error, fault, p0420, po, po420, rsx, tl

199 TL P0420 Error Code Question.

nicksan on Aug 4, 2004

Aug 5, 2004 12:59 PM
by TLgunner

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3

1,852

2G TL (1999-2003)

Angry

04, 2004, 420, acura, code, engine, light, mdx, po4020, po420, tl

Check Engine Light Scan Said PO420

em17henry on May 26, 2004

May 27, 2004 02:03 PM
by fsttyms1

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8

1,631

2G TL (1999-2003)

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