Threads Tagged with p0420

2000, 2006, acura, bank, check, clear, code, engine, light, mdx, opel, p0420, p420, rl, rsx, tl

check engine light P0420

libert69 on Oct 2, 2009

Oct 21, 2009 09:21 PM
by libert69

20

16,437

3G TL 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

18

12,585

3G TL (2004-2008)

acura, acurazine, cat, cel, cl, engine, enxaust, excellerate, flow, high, magnaflow, marble, p0420, rsx, rt, sound, streetka, xlr8

I need to replace my Cat..

fuzzy02CLS on Aug 22, 2009

Aug 24, 2009 07:27 PM
by Excelerate

15

2,112

2G CL (2001-2003)

1998, 1999, 420, 97, acura, cat, catalyst, cl, code, effic, p0420, p1519, p4020, restrictor, rl, rsx, seafoam, thresholdbank1, tl

Catalyst fail

(

1 2)

winhansse on Sep 11, 2008

Jul 11, 2009 12:06 PM
by winhansse

42

6,683

1G TSX Performance Parts & Modifications

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

6

5,502

3G TL (2004-2008)

30cl, 98, acura, bypass, catalytic, cl, converter, delete, exhaust, greddy, p0420, removal, rsx, sp2

Converter removal + o2fouler installation.

Josh99CL on Mar 29, 2009

May 22, 2009 12:38 AM
by dm8701

11

2,307

1G CL DIY & FAQ

200, adapter, antifoul, cats, cell, flow, high, magnaflow, p0420, pipe, power, prelude, random, raspy, spun, technology, test

Getting a stright story on aftermarket cats - Random, Fastline, etc...

feuss2 on Dec 13, 2008

May 10, 2009 05:52 PM
by carmagnut

20

22,942

31369, cat, dealers, flo, flow, gap, high, modaway, napa, numbers, o2, p0420, part, random, tech, tsx

Random Tech High Flow Cat Owners: Did you get a CEL?

(

1 2 3)

Tsx536 on Jan 23, 2006

May 8, 2009 10:33 AM
by DiaBando

115

7,687

1G TSX Performance Parts & Modifications

1998, acura, acurazine, bad, cat, catalytic, cl, cloged, clogged, clogging, converter, navigator, p0420, rsx, sensor

Catalytic Converter is clogged again!!!

champstar on May 1, 2009

May 3, 2009 07:49 PM
by xdaex

18

7,365

P0401 + P0420 (p)

payyourtoll on Mar 13, 2006

Apr 10, 2009 04:38 PM
by Larry1030

26

8,733

1997, acura, acurazine, catalytic, clogged, code, converter, egr, honda, integra, mdx, p0420, rsx, simulation, trick

Check Engine Light Code P0420 Catalytic converter Egr

chitownRLer on Jan 15, 2009

Mar 23, 2009 09:12 AM
by chitownRLer

9

20,823

1G RL (1996-2004)

1998, 2000, acura, bank, bearings, carrier, cl, code, p0420, p0730, po730, rsx, tl, trans, transmission

Codes P0420 and P0730. Need help

twiskus on Mar 4, 2009

Mar 7, 2009 01:23 PM
by winhansse

3

9,082

99, acura, appears, california, cl, cold, creaking, hot, p0420, problems, rsx, suspension, tl, weather

From Hot Weather To Cold Now I Got Problems Help

lely09 on Feb 18, 2009

Mar 3, 2009 01:01 PM
by acutee

4

1,354

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

5

1,462

acura, anti, cat, cel, codes, defouler, gasket, installed, maryland, p0420, random, rsx, rt, technology, throw, tsx

To All that has RT Cat. Any of you getting CEL recently?

(

1 2)

PearlWhite05 on Jul 20, 2006

Nov 20, 2008 06:24 AM
by Audioserf

50

3,608

1G TSX Problems & Fixes

2000, acura, bad, cat, catalyst, dtc, efficiency, injector, low, open, p0134, p0420, rl, rsx, stuck, type

check engine light

OctoberFestFan on Oct 19, 2008

Nov 8, 2008 01:40 AM
by BoxOn20s

29

3,457

3G TL 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

3

2,080

23, 23cl, 98, accord, acura, catalytic, cl, converter, eastern, fouler, honda, mod, nonfouler, p0420, seafoam, work

Noises

Master Bill Flex on May 26, 2008

Oct 2, 2008 12:37 PM
by TexasHonda

14

1,950

30, 99, acura, blow, car, cat, catalytic, check, cl, eastern, engine, gutted, light, motor, p0420, talk

Check Engine Light

champstar on Sep 5, 2008

Sep 24, 2008 10:31 PM
by Master Bill Flex

12

1,974

1998, 23, 99, acura, cl, clean, cleaning, egr, exhaust, f23, f23a, gas, p0420, port, ports, recirculation

99 2.3 egr port locations

bRunCL on Aug 9, 2008

Aug 27, 2008 06:00 PM
by smoky14

7

3,215

23, 9497, accord, acura, cel, cl, code, codes, p0171, p0420, p0500, rich, rsx, tsx, vss

Please help with CEL codes

kj98ac on Jul 1, 2008

Jul 3, 2008 10:16 AM
by kj98ac

4

1,752

0420, 2001, 2007, acura, acurazine, catalyst, cl, code, efficiency, mdx, nsx, p0420, rsx, system, threshold, tl

P0420 CODE catalyst system

meks85 on May 23, 2008

Jun 15, 2008 12:26 AM
by Dan3952

2

2,283

2G CL 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

3

2,482

1G TSX Problems & Fixes

1999, 2000, 401, 420, acura, catalyst, cl, code, codes, egr, p0420, p401, po401, rl, tl

401, 1457 and 420; can't get rid of them

tltoledo on Apr 13, 2008

Apr 14, 2008 10:43 AM
by phee

10

1,305

2001, acura, backup, cat, clock, code, codes, continue, continuing, drive, engine, eraes, fuse, mdx, p0420, tl, warning

Code P0420 with new catalytic converter

bmullahy on Mar 28, 2008

Mar 29, 2008 12:30 PM
by timberland73

12

16,014

2004, 2005, 500, acura, code, drops, engine, idle, oxygen, p0135, p0420, rpm, scan, sensor, tl, tsx

'04 Engine Light / 500rpm Idle

Rocklobster on Jul 6, 2007

Mar 21, 2008 12:48 PM
by castillo183

16

6,269

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

6

1,984

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

8

1,487

1999, 2005, 420, actron, acura, bank, code, codes, diagnostic, engine, light, p0420, rjaai001mode, rjaai001modeasp, tl

(Question)Check Engine Light Code P0420

y2kardell on Jan 12, 2008

Jan 28, 2008 11:02 AM
by elproducto

21

6,294

Please need help

Ava99 on Jan 11, 2008

Jan 12, 2008 06:52 PM
by Ava99

7

817

2G TL Performance Parts & Modifications

2007, acura, acurazine, location, mdx, nonfouler, o2, p0136, p0136p0138, p0138, p0420, plug, rsx, sensor, spark, tl

o2 sensor

2ndgentl on Dec 9, 2007

Dec 13, 2007 01:07 PM
by 2ndgentl

10

3,229

CEL & P0420

Manus99 on Dec 10, 2007

Dec 10, 2007 11:30 PM
by 2ndgentl

2

1,005

141, 2007, acura, catalyst, check, checkenginelight, code, efficiency, engine, fix, irving, issue, light, mdx, p0420, seafoam

HELP! check engine light code P0420

johnnir3volution on Nov 5, 2007

Nov 8, 2007 09:24 AM
by fsttyms1

11

3,888

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

10

2,387

1997, accord, acura, calgary, celica, cl, eliminator, integra, mdx, o2, p0420, rear, simulator, simulators, toyota

O2 simulator

qsgreencl on Apr 13, 2007

Apr 17, 2007 11:32 AM
by 732xghost

15

3,278

acura, booster, check, cl, code, engine, gas, light, lucas, malfunction, obd2, octane, p0420, regular, tl

Check Engine Light P0420 OBDII Code Regular Gas

Brewgod23 on Mar 21, 2007

Mar 24, 2007 02:37 AM
by 01tl4tl

9

11,184

2000, 2002, 99, acura, bank, bank1, located, locations, o2, obd, oxygen, p0420, rl, sensor, tl

Where is the Bank 1 O2 Sensor?

cam99 on Mar 18, 2007

Mar 22, 2007 05:00 PM
by cam99

3

7,693

03006, 2001, 32tl, acura, acurazine, cl, misfire, misfiring, p0300, p0420, p1399, problems, random, rsx, tsb, v6

HELMS HELP!!! random misfire all 6 cylinders... plus

(

1 2)

typeR on Apr 15, 2005

Jan 2, 2007 08:39 AM
by phipark

49

6,391

2G CL (2001-2003)

2004, acura, cl, code, damaged, ecu, exhaust, gt, manifold, mdx, mustang, p0420, put, tsx, voltage

ECU will not go out! Please help.

RCB1701A on Nov 13, 2006

Nov 30, 2006 09:38 AM
by RCB1701A

14

1,056

1999, 2000, 2002, 2004, acura, code, codes, cost, httpwwwacuraclcomforumsshowthreadphpt598140, mdx, p0400, p0420, p1739, switch, tl

P1739 (3rd cluch switch) an P0400

ezekielj007 on Jun 12, 2006

Jun 14, 2006 01:40 PM
by fsttyms1

9

16,816

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

0

1,069

1G TSX Performance Parts & Modifications

42002, 42009, cel, integra, mods, o2, p0420, rsx, scooby, sensor

new racing pipe for cat replacement

kendroz on Aug 26, 2005

Sep 13, 2005 10:58 PM
by jonnerd154

35

2,165

18160p8c305, 18160p8fj00, 18182p8cl00, 2000, 99, acura, code, fix, gunk, honda, p0420, p1709, part, pn, service, tl

P0420 and P1709 codes

ezekielj007 on Jul 3, 2005

Aug 14, 2005 12:25 PM
by pdprich

5

3,929

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

2

1,179

23, 98, acura, catalyst, catalytic, cl, codes, obd, p0420, rdx, threshhold, threshold, tl, tsx

Promblem with OBD code Catalyst below threshold

DuGlaX on Sep 12, 2004

Sep 14, 2004 02:43 PM
by keith3CL

3

1,148

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

3

1,852

Obdii

cscottyr on Aug 2, 2004

Aug 2, 2004 07:38 PM
by cscottyr

4

2,502

0420, 32, 99, acura, bad, cl, cleaner, code, fuel, injector, obd2, p0420, pcv, tl, valve

OBDII help. What kind to buy and code P0420

Shelbydog25 on Jun 11, 2004

Jun 12, 2004 08:24 PM
by Shelbydog25

2

1,674

funky idling

fortunate on Jun 30, 2003

Jul 27, 2003 03:42 PM
by PeterUbers

10

1,164