p0420 - Honda-Tech - Honda Forum Discussion - Threads Tagged with p0420

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acura, catalytic, code, converter, gsr, honda, integra, miles, p0420, tech

P0420 code at 160K+ miles

thewrai6th on Nov 13, 2008

Nov 14, 2008 06:51 PM
by HondaLove517

3

1,041

Acura Integra

1998, 96, 98, accelerating, civic, code, flooded, honda, inectors, ipb, map, p0420, power, sensor, sign

Problem with 1998 Honda Civic EX (Video inside)

invision on Nov 8, 2008

Nov 10, 2008 03:05 PM
by invision

12

1,076

Honda Civic / Del Sol (1992 - 2000)

auto, honda, p0420, troubleshooting, zone

Check Engine Light

axshnjxsn on Nov 8, 2008

Nov 9, 2008 07:04 PM
by dk4ever

2

1,780

Honda Prelude

16, 2000, 93, bolt, break, civic, codes, crank, crankshaft, crhankshaft, del, honda, loose, p0420, shaft, snap, sol

crank bolt 2000 1.6LX

zx12ryder on Oct 21, 2008

Nov 6, 2008 06:19 AM
by yoffer

22

1,541

Honda Civic / Del Sol (1992 - 2000)

2001, acura, b18c, code, ej1, gsr, integra, p0420, type

New to honda-tech

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1 2)

mugenEJ1_777 on Oct 26, 2008

Nov 5, 2008 04:45 PM
by esean93

42

2,301

Honda Civic / Del Sol (1992 - 2000)

04, 2002, cases, cat, catalic, catalytic, cel, civic, code, coming, converter, odyssey, p0420, pcv, po420

Dealing with P0420 code, civic catalytic converter

Atomic1 on Nov 4, 2008

Nov 4, 2008 07:39 PM
by Atomic1

2

1,440

Tech / Misc

01, 98, acura, catalyst, celica, code, computer, crv, honda, odyssey, p0420, po420, rsx, system, toyota

Computer code P0420, catalyst system efficiency below threshold

janek on Oct 11, 2008

Nov 3, 2008 02:25 AM
by janek

14

8,185

Honda Prelude

anaheim, cat, chipped, ecu, engine, experts, failed, fuel, good, hondatech, p0420, ref, smog, state, unburned

Failed state ref. experts needed.

mdj_ge on Oct 9, 2008

Oct 10, 2008 11:51 PM
by EvilPhu

9

1,335

Honda Civic / Del Sol (1992 - 2000)

cat, civic, clean, code, coupe, cracked, element, fouler, honda, honeycomb, lx, manifold, p0420, temp, test

Before I replace my cat P0420 code.

kieranmullen on Sep 24, 2008

Sep 25, 2008 08:45 PM
by angel_i

23

2,035

Honda Civic / Del Sol (1992 - 2000)

2000, 99, air, cap, cat, check, code, crv, engine, filter, gas, gut, honda, p0420, po420

98 CRV need P0420 help

shooter0577 on Jul 3, 2006

Sep 25, 2008 08:55 AM
by shaggyeg6si

7

13,786

Honda Minivans, Crossovers, and Trucks

1992, 96, civic, hondabond, oil, oilpan, p0420, pan, removal, replacement, rsx, sealant, stuck, taking, tighten

oil pan removal questions.....

kaychi on Sep 17, 2008

Sep 19, 2008 11:37 AM
by obuhmyuh

14

1,155

Honda Civic / Del Sol (1992 - 2000)

1999, 2003, accord, acura, code, codes, honda, p0420, rsx, v6

code P0420 help

bryanj325 on Sep 11, 2008

Sep 19, 2008 11:11 AM
by RXPARTS

3

1,692

Honda Accord & Crosstour (2003 - 2012)

2000, catalyst, civic, defouler, efficiency, honda, long, mod, o2, oe, p0420, po420, simulator, system, threshold

did defouler mod for P0420, how long before I can expect the CEL to come back if its going to?

EJ8_Enthusiast on Sep 18, 2008

Sep 18, 2008 07:05 PM
by geebs

1

2,162

Honda Civic / Del Sol (1992 - 2000)

00, 10, 15, 2003, del, honda, inch, oem, p0420, prelude, rim, rims, sale, si, sol, spoke

10 spoke 15 inch OEM rims (used, A- rating) - located three, worth $80 a piece?

EJ8_Enthusiast on Sep 18, 2008

Sep 18, 2008 09:38 AM
by Vindicator9000

4

840

Honda Civic / Del Sol (1992 - 2000)

2002, 99, acura, civic, code, defouler, honda, integra, o2, p0420, permanently, po420, rid, sensor, tsx

Thinking of defouler mod to rid P0420 - How can I check that the O2 sensor is working?

EJ8_Enthusiast on Sep 16, 2008

Sep 16, 2008 03:55 PM
by slowcivic2k

3

4,601

Honda Civic / Del Sol (1992 - 2000)

2000, 2001, armrest, broken, civic, door, ek, hole, neon, p0420, panel, panels, plastic, plymouth, recover, repair

Have you repaired the elbow hole in your door panel?

specoperformance on Sep 15, 2008

Sep 15, 2008 06:56 PM
by EJ8_Enthusiast

9

8,212

Honda Civic / Del Sol (1992 - 2000)

2001, airfilter, b16, bay, code, degreaser, engine, honda, is300, lexus, p0420, properly, tech, wash, washing

Searched/Checked FAQ's section. How do you properly wash your engine + Engine bay???

Juan_Mitosis on Aug 23, 2008

Aug 24, 2008 12:41 PM
by LextasyIS300

13

1,147

Honda Civic / Del Sol (1992 - 2000)

1998, 2000, 98, check, civic, defouler, del, forums, honda, invision, motor, oil, p0420, problems, sale, sol

1998 Honda Civic, consuming oil?

invision on Aug 20, 2008

Aug 21, 2008 05:46 PM
by invision

4

1,233

Honda Civic / Del Sol (1992 - 2000)

2002, 2003, 420, check, civic, code, crv, engine, extender, honda, location, o2, p0420, po420, primary, sensor

2002 CRV Code PO420

neckman on Jun 18, 2008

Aug 7, 2008 09:30 AM
by shaggyeg6si

11

33,163

Honda Minivans, Crossovers, and Trucks

420, acura, code, dtc, honda, ii, list, obd, odb, p0420, p420, pass, prelude, smog, tl

420 (Throttle Control) code for 97 accord SE

phobin1 on Jul 21, 2008

Jul 30, 2008 11:04 AM
by bseriescrxsi

12

1,702

Honda Accord (1990 - 2002)

1996, 1999, 2001, 2004, acura, cheap, civic, code, fixes, honda, odyssey, p0420, po420, problem, tsx

First time civic owner- P0420 with background on car...

00_Civic_EX_Newb on Jul 17, 2008

Jul 22, 2008 09:00 PM
by speedracer9k

10

2,536

Honda Civic / Del Sol (1992 - 2000)

2002, 95, aftermarket, changed, civic, code, honda, labor, light, o2, oem, p0420, sell, sensor, si

$1500 sound right for new OEM cat and o2 sensor with tax and labor?

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1 2)

00_Civic_EX_Newb on Jul 21, 2008

Jul 22, 2008 07:55 PM
by Sterlinghondahatch

40

1,931

Honda Civic / Del Sol (1992 - 2000)

1998, air, civic, clogged, code, filter, fuel, honda, p0420, repair

P0420 CODE HELP....

KrazyK_20 on Jul 21, 2008

Jul 21, 2008 09:13 PM
by KrazyK_20

3

652

Honda Civic / Del Sol (1992 - 2000)

1997, 2000, accel, booster, brake, civic, failures, integra, p0420, p28, po420, seafoam, si, stutter, stuttering, stutters, toyota

why is my engine stuttering/hesitating?!?

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1 2)

typeR#338 on Jun 24, 2008

Jul 18, 2008 08:34 AM
by Devon M

45

3,813

Acura Integra Type-R

2000, 2001, 2003, accord, auto, burning, civic, code, honda, obd, obd2, obdii, oil, p0420, po420, scanner

OBD2 CODE P0420

JDMPHILEP91 on Jul 13, 2008

Jul 15, 2008 07:49 PM
by JDMPHILEP91

18

6,793

Honda Civic / Del Sol (1992 - 2000)

1996, 99, accord, catalyst, catalytic, cell, civic, code, converter, efficiency, honda, p0420, pd, s2000, system, threshold

HELP!!!! Code P0420 Catalyst System Efficiency Below Threshold

1SloNeon on Jul 3, 2008

Jul 5, 2008 09:45 AM
by Frozen E

11

5,794

Honda Civic / Del Sol (1992 - 2000)

67, 6th, 6thgen, accord, catalyst, cel, check, code, codes, engine, gen, honda, light, manual, p0420, service

CEL code 67 - 6th gen accord-

Nathan007 on May 6, 2008

May 31, 2008 04:34 AM
by b18crx

4

3,501

Honda Accord (1990 - 2002)

2000, 2001, 2002, 2004, accord, acura, after, aftermarket, catalyst, code, honda, number, oem, p0420, tsx, warranty

Troubleshooting P0420 Catalyst efficiency

reneejenk99 on Dec 28, 2007

May 24, 2008 01:47 PM
by someone else

6

4,394

Honda Accord & Crosstour (2003 - 2012)

1998, 2002, accord, check, code, codes, color, engine, honda, lx, p0420, po420, recall, tech, warranty

Honda Accord LX 1998, P0420 Code

tomasbermeo85 on Jan 4, 2008

May 24, 2008 06:18 AM
by b18crx

3

1,895

Honda Accord (1990 - 2002)

0420, 1298, 2000, 2002, acura, civic, code, ep3, honda, p0420, p1298, pass, rsx, smog, types

p0420 code but no cel

MONSTERek4 on Apr 17, 2008

Apr 19, 2008 01:29 AM
by MONSTERek4

3

2,032

Acura RSX DC5 & Honda Civic EP3