p0420 - Honda-Tech - Honda Forum Discussion

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1298, 2001, 97, acura, causing, cel, check, civic, code, codes, engine, failure, honda, idm, p0420, p1298, rsx, trouble

trouble code p1298 idm failure <----WHAT DOES THIS MEAN???

ziggy2000one on 01-03-2007

03-03-2024 05:47 AM
by juniors

7

10,406

Honda Civic / Del Sol (1992 - 2000)

0420, 1998, 2001, 420, 98, civic, code, eraased, honda, lx, obd, p0420, p420, po, po0420, po420

98 civic with p0420 code

chinox2001 on 07-12-2007

12-22-2022 09:13 PM
by Mannyvtec805

2

8,350

Honda Civic / Del Sol (1992 - 2000)

1996, 1999, accord, check, civic, code, codes, engine, honda, light, odyssey, p0132, p0172, p0420, p1676, pretty, standard, trouble

Check Engine Light codes (CEL) Diagnostic Trouble Codes (DTC) Malfunction Indicator Light (MIL) and

(

1 2 3)

MuthaFodder on 01-11-2006

09-04-2019 10:34 AM
by rt56

57

993,962

Honda Accord (1990 - 2002)

0420, 1998, 2003, 99, accelerating, cat, cel, civic, code, converter, honda, hondatech, mdx, p0420, stumbling, tsb

99 Civic EX - P0420 Code

older_honda on 06-11-2009

07-10-2018 06:34 PM
by Ceabiskett

12

21,254

Honda Civic / Del Sol (1992 - 2000)

2003, accord, bad, cat, code, crv, driving, honda, hondatech, o2, p0420, po420, post, reading, sensor, thermostat, voltage

P0420 Code

jc007i on 01-20-2012

04-11-2017 08:35 PM
by cjay__19

17

43,836

Honda Accord & Crosstour (2003 - 2012)

1, 2003, accord, bank, catalyst, code, effeciency, efficiency, honda, honea, p0420, po420, system, sytstem, threshold

P0420 Catalyst system efficiency below threshold (bank1) o2 or cat?

(

1 2)

Integra_Boi on 02-19-2005

04-15-2016 04:22 AM
by RedTRex

48

472,062

Honda Accord (1990 - 2002)

04, 07012004, 2004, 2006, accord, code, crv, dtc, engine, honda, light, p0420, software, tsb, update

'04 Accord, DTC p0420, on....off

adorek24 on 03-26-2010

12-19-2014 01:35 PM
by DaddyMack2698

7

20,831

Honda Accord & Crosstour (2003 - 2012)

03, 99, cel, civic, crack, cracked, cvic, d16y7, exhaust, header, honda, icm, idle, manifold, p0420, rough

99 Civic d16y7 - cracked header, misfiring, and throwing CEL code P0420

720kev on 11-22-2010

11-29-2014 07:09 PM
by normanl2491

9

7,134

Honda Civic / Del Sol (1992 - 2000)

040, 0420, 2000, assembly, cap, catalytic, civic, code, converter, distributer, distributor, error, honda, installing, p0420, replace, replaced

Error code P0420 after install distributor cap assembly

frk040 on 01-09-2011

06-08-2014 06:32 AM
by Former User

5

9,169

Honda Civic / Del Sol (1992 - 2000)

2002, 98, accord, additives, catalytic, check, converter, cost, due, honda, obdii, p0420, pass, problems, smog, warranty

Write up - Dealer replaced catalytic converter 98 Accord OBD2 P0420...finally for free.

arielb1 on 11-29-2004

04-15-2014 10:02 PM
by MAD_MIKE

10

15,162

Honda Accord (1990 - 2002)

03, 0420, 1996, 2002, 24, accord, acord, code, gide, honda, lx, p0420, p420, po420, troubleshooting

Troubleshooting P0420 Code...

dlewis2583 on 01-03-2012

08-14-2013 01:16 AM
by Discosteak

11

20,429

Honda Accord (1990 - 2002)

1998, 2000, acura, check, civic, code, engine, error, fix, gsr, honda, light, p0420, po420, s2000

Code P0420 : Mechanic says:

seriot on 12-06-2007

05-12-2013 02:45 PM
by doctorake

21

78,459

Honda Civic / Del Sol (1992 - 2000)

P0420, P1164, P1167

Accord(ing)2me on 01-18-2012

07-11-2012 11:10 AM
by jdmcertified909

9

13,233

Honda Accord (1990 - 2002)

cat, check, civic, dont, fouler, honda, hondatech, locations, nuys, p0420, pass, pay, plug, smog, spark, test, van

The much dreaded P0420 :(

(

1 2)

Weewee on 05-04-2012

06-13-2012 08:57 AM
by portenio78

29

32,772

Honda Civic / Del Sol (1992 - 2000)

civic, computer, honda, p0420, ping, powered, rdx, vbulletin

P0420 code after I replaced exhaust manifold and cat

zackn8 on 05-21-2012

06-07-2012 03:53 PM
by zackn8

15

10,018

Honda Civic / Del Sol (1992 - 2000)

98, accord, code, fault, honda, obd, odb2, p0302, p0420, p1456

New Owner needs some help with diagnosing codes (98, 4cyl,5spd)

ajerman on 04-13-2012

04-24-2012 08:31 AM
by ajerman

10

2,516

Honda Accord (1990 - 2002)

99, accord, catalyst, check, code, cyl, efficiency, engine, honda, hondatech, light, p0420, system, threshold, turns

99 Accord Code P0420

trout63 on 03-25-2012

03-26-2012 03:31 PM
by Bad_dude

6

27,651

Honda Accord (1990 - 2002)

01, 2001, 2002, accord, code, codes, fault, google, honda, odyssey, p0420, trouble

P0420 Trouble Code

Accord(ing)2me on 03-09-2012

03-09-2012 09:40 AM
by GhostAccord

1

4,260

Honda Accord (1990 - 2002)

2000, cat, civic, code, cross, crossp0420, exhaust, honda, leak, leaking, manifold, number, o2, oem, oxygen, p0420, sensor, threads

CAT Conv., Pre & Post O2 Sensors ('98 Civic)

ejulson on 05-02-2011

03-05-2012 06:52 AM
by jaconlon1

5

3,511

Honda Civic / Del Sol (1992 - 2000)

2000, acura, burning, cat, code, defouler, honda, integra, oil, p0420, po420, replaced, replacement, rl, s2000, trick

P0420 coming on after cat replacement

ccrelan on 03-03-2012

03-03-2012 05:36 PM
by ccrelan

11

7,239

Honda Civic / Del Sol (1992 - 2000)

02, bad, cat, cel, civic, defouler, ep3, gas, honda, mileage, p0420, po420, poor, replaced, replacing

Replacing Cat in Cali + CEL P0420

Dangydang on 02-12-2012

02-17-2012 06:03 PM
by b_ron

5

2,629

Acura RSX DC5 & Honda Civic EP3

02, 90, 96, accord, anti, civic, code, degree, dx, fouler, honda, p0420, plug, po420, spark

02 Honda Civic P0420 code

jasrams on 02-06-2012

02-08-2012 05:22 AM
by Allboost18b

8

6,890

Honda Civic (2001 - 2005)

2000, 2005, bad, censor, civic, code, crv, ep3, honda, o2, p0420, po420, replace, sensor, tech, upstream

02 Honda Civic P0420 code

javiertololo on 01-05-2012

01-10-2012 03:26 AM
by It Wasn't Me

7

50,022

Honda Civic (2001 - 2005)

03, 2008, cat, civic, code, honda, o2, p0420, p1167, pilot, plugs, po420, sensors, si, spark

P0420, P1166 and P1167 after new cat, new plugs, new O2,

troybmm on 12-03-2011

12-06-2011 05:36 AM
by Type-Spaz

17

8,734

Acura RSX DC5 & Honda Civic EP3

0420, 06, 2006, catalytic, code, converter, honda, hondapilotbank1converterreplace, hondapilotcodes, odyssey, p0420, p0420hondapilot, pilot, po420, rearwutwc

Honda Pilot MIL on with P0420 code help

tshelton38 on 11-05-2011

11-05-2011 10:34 PM
by tshelton38

2

54,718

Honda Minivans, Crossovers, and Trucks

, 03, accord, acura, cel, civic, code, ep3, honda, mdx, p0420, po420, rl, rsx, tl

So just threw a P0420 code

02blackhatch on 10-28-2011

10-31-2011 04:04 AM
by rjmq06

2

6,307

Acura RSX DC5 & Honda Civic EP3

1509, 2000, 97, automatic, civic, code, crv, dx, honda, p0420, p1509, start, tech, time

2000 dx , p1509 start then die.

92DAIntegraXSI on 09-28-2011

09-28-2011 11:43 AM
by Former User

1

4,669

Honda Civic / Del Sol (1992 - 2000)

06, 2002, 96, 98, accord, acord, cel, code, codes, honda, p0420, p420, po0420, po420, reset

'98 Accord with P0420 code, please help...

travelin' man on 08-24-2011

08-24-2011 06:49 AM
by travelin' man

0

3,793

Honda Accord (1990 - 2002)

2000, 420, 97, civic, civil, cx, dies, gas, honda, p0420, po, po420, power, press, start

po420 and no power, it dies out

admess188 on 11-23-2010

08-13-2011 07:29 PM
by justinsbg

9

2,193

Honda Civic / Del Sol (1992 - 2000)

02, cat, code, d16y7, exhaust, fouler, manifold, o2, p0420, proble, recommend, replace, replacing, sensor, work

1998 d16y7 reading P0420 after replacing cat & exhaust manifold. O2 sensor problem?

socalrocks on 08-10-2011

08-10-2011 07:43 PM
by motegicivic

4

4,116

Honda Civic / Del Sol (1992 - 2000)

Threads Tagged with p0420