Threads Tagged with p0420

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

Help with P0420 code

kmk42019 on Jan 27, 2011

Feb 3, 2020 11:28 AM
by ALEMIKA

28

126,827

Diagnosing P0420 DTC w/ Torque - Question about Bank 1, Sensor 1

djpinoy on Mar 31, 2015

Dec 26, 2016 02:04 PM
by netsx04

3

6,836

p0420 code on my '05 tsx with 144k miles

spsharp12 on Jan 21, 2015

Aug 24, 2015 11:31 AM
by TexasHonda

4

7,006

P0420 code

nickjohnson93 on Mar 4, 2015

Apr 1, 2015 11:02 AM
by HEAVY_RL

9

3,488

1999, 32, 99, acura, acurazine, cat, code, codes, computer, engine, p0401, p0420, po401, scan, tl, walker

engine codes p0420 and p0401 on 1999 tl

cat8lady on May 27, 2011

Mar 2, 2015 10:30 AM
by 01tl4tl

13

18,495

04, acura, check, code, codes, engine, mdx, p0420, p0430, seafoam

Crap! P0420 & P0430 codes

slper on Oct 1, 2014

Dec 3, 2014 10:15 PM
by yungone501

7

9,112

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

15

24,122

06, 2009, acurs, bad, cat, causing, jaguar, mpg, p0420, p0430, rsx, tl, type

P0430 and P0420 Codes + bad MPG

marcelft on May 27, 2014

May 29, 2014 09:51 AM
by 01tl4tl

8

8,393

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

17

11,446

3G TL Performance Parts & Modifications

Codes p0420, p430

Pablobeltran on Mar 10, 2014

Mar 11, 2014 02:11 PM
by Pablobeltran

7

2,965

04, 62, acurazine, cid, low, mpg, p0420, tid

Help Needed:

P0420 error code & lower mpg

mjchacko on Jan 22, 2014

Jan 22, 2014 02:24 PM
by Ron A

1

3,346

AcuraZine Member Help, Support & Suggestions Area

acura, check, code, dakota, engine, home, limp, mdx, mode, nsx, p0420, tsx

Really need help Code P0420 & Limp/Home mode

a3scobar on May 9, 2013

May 10, 2013 11:40 PM
by carz0159

6

7,689

1706, 2002, acura, at, cl, code, codes, dtc, gear, mdx, mdxdtc, p0420, p1706, position, rsx

Fawking car!!! P1706, what next?

sbuswell on Mar 10, 2008

Mar 6, 2013 04:26 PM
by spydercatt

11

7,475

Code P0420, my options ?

madison87 on Jan 27, 2013

Jan 28, 2013 11:50 AM
by madison87

2

2,312

2000, 2001, acura, cl, code, codes, cross, failed, mdx, number, obd, oem, p0420, p0740, rsx, tl

OBD codes P0420 and P0740 2001 CL

Njr7988 on Aug 24, 2012

Aug 24, 2012 02:11 PM
by Stephen00TL

1

3,643

2G CL Problems & Fixes

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

22

33,413

1G CL Problems & Fixes

106k, 1079, 2002, 2006, 87, acura, check, code, engine, light, mdx, octane, p0420, rsx, wrong

check engine light again!!

sf_rsx-s on Jun 6, 2012

Jun 20, 2012 08:56 PM
by Woofer

18

2,265

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

6

5,835

2003, 420, acura, cl, code, engine, fix, mdx, p0420, rdx, remove, rl, rsx, tl, tsx

Code Issues P0420!

Njr7988 on Jun 12, 2012

Jun 13, 2012 06:52 PM
by yungone501

2

3,039

2G CL (2001-2003)

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

5

2,847

07, 18290ryea00, 2005, 2007, acura, acurazine, cl, code, emission, mdx, p0420, part, rl, tl, type

P0420?? Need help.

sqranks on Apr 22, 2011

Apr 26, 2012 06:32 PM
by phishfood

13

29,101

1999, acura, cl, code, coil, emissions, emition, faild, failed, p0401, p0420, pack, seafoam, test, tl

'99 TL Failed Emissions - P0420, P0401, and P1457 OBD codes

DaHadster on Apr 9, 2012

Apr 26, 2012 11:03 AM
by closetprisoner

25

12,313

2002, 2003, catalytic, cats, change, changing, chevy, code, converter, engine, impala, o2, p0420, replaced, sluggish

Change 02 when changing Cat ?

zryde on Dec 28, 2006

Apr 9, 2012 05:17 PM
by 01tl4tl

13

2,487

1999, 420, 99, accura, acrua, acura, code, codes, error, mdx, p0420, p420, tl, trouble, tsx

P420 Error Code

Jhaas07 on Jan 14, 2012

Mar 12, 2012 04:37 PM
by closetprisoner

14

6,190

2 CEL codes

glenawill on Feb 23, 2012

Mar 10, 2012 11:56 AM
by scottn3

3

1,168

2004, 98, aa3, acura, af, air, cl, code, concern, ho2s, leak, mdx, p0420, ratio

CEL issues

BlacAc06 on Feb 3, 2012

Feb 4, 2012 11:30 AM
by BlacAc06

10

1,878

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

6

2,800

fongz on Dec 1, 2011

Dec 1, 2011 08:10 PM
by HEAVY_RL

4

5,786

02, 04, 2004, acura, bank, check, codes, engine, light, mdx, o2, oxygen, p0420, sensor, sensors

2004 MDX O2 Sensor Code - Need Help

golfjwr on Apr 4, 2011

Oct 28, 2011 04:02 PM
by jt1010

2

7,712

1/2G MDX (2001-2013)

02, acura, continue, drive, emissions, fuel, inspection, mdx, p0420, pass, premium, rsx, sensor, spacer, techron, test

Help passing an emissions test

kmk42019 on Sep 16, 2011

Sep 29, 2011 12:43 PM
by PaHonda

11

7,414

accelerate, acura, acurazine, check, code, codes, engine, light, mdx, p0420, p2138, rl, tl, tsx, vsa

VSA Check Engine - Code: P2138

zookie on Jul 1, 2011

Aug 9, 2011 07:57 PM
by 04WDPSeDaN

5

61,883

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

7

10,239

I need help please

tlv on Jun 22, 2010

Jul 6, 2011 10:35 PM
by danpetrideanu

3

1,424

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

11

6,821

Replace catalytic convertors

duckengine on May 14, 2011

May 15, 2011 12:18 PM
by I hate cars

7

1,768

2006, acura, check, code, engine, error, light, mdx, means, obd2, p0420, p0430, replacement, reset, tl

Pulled Error codes P0420, P0430

PeteThaPitbull on Aug 18, 2009

Apr 17, 2011 03:11 PM
by PeteThaPitbull

8

28,624

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

1

2,150

0420, acurazine, candy, car, code, cost, diabetic, fixed, ky, light, louisville, p0420, p0740, pd, tcs

TCS Light came on???

(

1 2 3)

pzhoward on Aug 22, 2010

Nov 30, 2010 05:24 PM
by 01tl4tl

106

13,986

35, acura, catalytic, check, cl, converter, converters, engine, light, middle, p0420, rl, rsx, smoke, temp, vsa, white

hi, new here and need some advice

wphan on Nov 15, 2010

Nov 17, 2010 06:30 AM
by totaledTL

13

1,476

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

8

3,069

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

3

27,234

2000, 35, acura, bad, cat, catalytic, changing, converter, converters, oxygen, p0420, replace, rl, sensor, tl

Catalytic converter on 2000 RL

Eljefe1981 on Oct 6, 2010

Oct 6, 2010 11:43 AM
by Eljefe1981

0

1,044

1G RL (1996-2004)

P0420 & p0430

gnuts on Jan 26, 2010

Aug 31, 2010 09:43 AM
by gnuts

14

13,343

2G CL 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

7

4,689

1G CL Problems & Fixes

1998, 2002, 32tl, 99, acura, catalyst, check, cl, code, engine, mdx, p0420, p1676, po138, system, tl

Pulled Code P1676 & P0420

Dumbgunji on May 20, 2006

Aug 20, 2010 05:21 PM
by spineman

18

20,472

05, 2004, 2005, 2006, acura, code, codes, gear, out, overheat, p0420, slip, slipping, tl, tranny, transmission

2005 5AT base TL transmission slipping but no code ! HELPPPPP!

bertyboy69 on Jul 16, 2010

Jul 17, 2010 10:16 AM
by bertyboy69

6

6,256

2005, 3g, acura, acurazine, cat, cats, code, gerzand, hollowed, oem, p0420, pre, thesandhugmailcom, tl

3rd Gen TL OEM Pre-Cats and OEM 3rd Cat

gerzand on May 1, 2010

May 18, 2010 11:43 PM
by 07lightning

12

2,449

Car Parts for Sale

acura, catalyst, cl, defouler, efficiency, excelerate, o2, obd, p0420, rsx, system, threshold, type

its always something

p.diddy on Apr 30, 2010

Apr 30, 2010 03:23 PM
by brian6speed

5

1,392

2G CL (2001-2003)

2000, 2003, acura, cat, catalytic, cats, cl, code, codes, converter, eastern, false, flow, high, mdx, p0420, rl

Help with P0420 - off market catalytic converter

acura1999tl on Mar 9, 2010

Mar 10, 2010 12:23 PM
by 01tl4tl

5

2,850