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 01-27-2011

02-03-2020 11:28 AM
by ALEMIKA

28

99,400

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

djpinoy on 03-31-2015

12-26-2016 02:04 PM
by netsx04

3

5,485

p0420 code on my '05 tsx with 144k miles

spsharp12 on 01-21-2015

08-24-2015 11:31 AM
by TexasHonda

4

6,353

P0420 code

nickjohnson93 on 03-04-2015

04-01-2015 11:02 AM
by HEAVY_RL

9

3,059

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 05-27-2011

03-02-2015 10:30 AM
by 01tl4tl

13

17,802

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

Crap! P0420 & P0430 codes

slper on 10-01-2014

12-03-2014 10:15 PM
by yungone501

7

8,256

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

P0420 caused bu sea foam?

nikkwins on 09-16-2012

09-19-2014 02:41 PM
by YeuEmMaiMai

15

21,122

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

P0430 and P0420 Codes + bad MPG

marcelft on 05-27-2014

05-29-2014 09:51 AM
by 01tl4tl

8

7,292

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

p0420 p0430 p0171 p0174

Chans on 03-09-2014

04-27-2014 10:13 AM
by Chans

17

9,781

3G TL Performance Parts & Modifications

Codes p0420, p430

Pablobeltran on 03-10-2014

03-11-2014 02:11 PM
by Pablobeltran

7

2,797

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

Help Needed:

P0420 error code & lower mpg

mjchacko on 01-22-2014

01-22-2014 02:24 PM
by Ron A

1

3,117

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 05-09-2013

05-10-2013 11:40 PM
by carz0159

6

6,829

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

Fawking car!!! P1706, what next?

sbuswell on 03-10-2008

03-06-2013 04:26 PM
by spydercatt

11

6,334

Code P0420, my options ?

madison87 on 01-27-2013

01-28-2013 11:50 AM
by madison87

2

2,176

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 08-24-2012

08-24-2012 02:11 PM
by Stephen00TL

1

3,264

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 11-30-2006

07-11-2012 02:51 PM
by dghokie

22

30,204

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 06-06-2012

06-20-2012 08:56 PM
by Woofer

18

2,021

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

P0420 P0430 codes thrown ...

3GTLCHICK on 06-05-2012

06-15-2012 12:03 AM
by DANELSON

6

5,196

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

Code Issues P0420!

Njr7988 on 06-12-2012

06-13-2012 06:52 PM
by yungone501

2

2,894

2G CL (2001-2003)

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

Cel p0420

DANELSON on 05-31-2012

06-04-2012 11:36 PM
by DANELSON

5

2,628

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

P0420?? Need help.

sqranks on 04-22-2011

04-26-2012 06:32 PM
by phishfood

13

25,230

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 04-09-2012

04-26-2012 11:03 AM
by closetprisoner

25

11,833

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

Change 02 when changing Cat ?

zryde on 12-28-2006

04-09-2012 05:17 PM
by 01tl4tl

13

2,370

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

P420 Error Code

Jhaas07 on 01-14-2012

03-12-2012 04:37 PM
by closetprisoner

14

5,800

2 CEL codes

glenawill on 02-23-2012

03-10-2012 11:56 AM
by scottn3

3

998

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

CEL issues

BlacAc06 on 02-03-2012

02-04-2012 11:30 AM
by BlacAc06

10

1,721

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

New TL owner list of issues.

jacksonmullet on 01-31-2012

02-01-2012 11:37 AM
by TLer trash

6

2,618

fongz on 12-01-2011

12-01-2011 08:10 PM
by HEAVY_RL

4

5,495

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

2004 MDX O2 Sensor Code - Need Help

golfjwr on 04-04-2011

10-28-2011 04:02 PM
by jt1010

2

7,089

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 09-16-2011

09-29-2011 12:43 PM
by PaHonda

11

6,100

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

VSA Check Engine - Code: P2138

zookie on 07-01-2011

08-09-2011 07:57 PM
by 04WDPSeDaN

5

54,714

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

05 RL 95K miles P0420

Dopes6070 on 01-06-2010

07-07-2011 09:37 PM
by jbirch2000

7

10,017

I need help please

tlv on 06-22-2010

07-06-2011 10:35 PM
by danpetrideanu

3

1,283

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

check engine light with po420

max1995 on 01-11-2010

05-27-2011 10:58 AM
by 01tl4tl

11

6,624

Replace catalytic convertors

duckengine on 05-14-2011

05-15-2011 12:18 PM
by I hate cars

7

1,629

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

Pulled Error codes P0420, P0430

PeteThaPitbull on 08-18-2009

04-17-2011 03:11 PM
by PeteThaPitbull

8

27,896

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

P0420 code need cat replacement

hjsmear on 01-12-2011

01-12-2011 01:11 PM
by SharksBreath

1

2,032

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

TCS Light came on???

(

1 2 3)

pzhoward on 08-22-2010

11-30-2010 05:24 PM
by 01tl4tl

106

13,427

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 11-15-2010

11-17-2010 06:30 AM
by totaledTL

13

1,350

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

Aftermarket Cat & code P0420

fuzzy02CLS on 10-18-2010

11-12-2010 12:25 PM
by civicdrivr

8

2,908

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 10-04-2010

10-28-2010 07:56 AM
by karcich

3

26,899

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

Catalytic converter on 2000 RL

Eljefe1981 on 10-06-2010

10-06-2010 11:43 AM
by Eljefe1981

0

967

1G RL (1996-2004)

P0420 & p0430

gnuts on 01-26-2010

08-31-2010 09:43 AM
by gnuts

14

12,772

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 08-20-2010

08-26-2010 10:17 PM
by 97BlackAckCL

7

4,509

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 05-20-2006

08-20-2010 05:21 PM
by spineman

18

19,907

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 07-16-2010

07-17-2010 10:16 AM
by bertyboy69

6

5,729

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 05-01-2010

05-18-2010 11:43 PM
by 07lightning

12

2,335

Car Parts for Sale

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

its always something

p.diddy on 04-30-2010

04-30-2010 03:23 PM
by brian6speed

5

1,247

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 03-09-2010

03-10-2010 12:23 PM
by 01tl4tl

5

2,639