Threads Tagged with p0420

1996, 96, accord, cat, code, codep0420, converter, genuine, honda, lx, number, oem, p0420, part, parts, po420

1996 Accord with code p0420- cat converter...help

deblas66 on Mar 19, 2008

Mar 19, 2008 10:32 AM
by deblas66

0

1,050

00, 2003, 240sx, 96, accord, check, civic, code, codehonda, engine, fix, honda, light, p0420, po420, prelude

CHECK ENGINE LIGHT, need help quick. P0420 is the code

96hatchy on Nov 2, 2007

Mar 15, 2008 03:02 PM
by 1990_integra_DA9

9

5,915

bank, bank1, cat, catalyst, civic, code, crb, efficiency, honda, located, p0420, po420, s2000, threshhold, threshold

code p0420 catalyst systen efficiency below threshold [bank 1 ]

poorhonda on Feb 25, 2008

Feb 25, 2008 08:30 PM
by My JDM EJ8

4

3,052

code p0420 help!

v8hnta on Feb 24, 2008

Feb 24, 2008 04:33 PM
by v8hnta

0

543

2000, accord, check, civic, code, engine, honda, light, o2, obd2, p0420, po240, ridgeline, sensor, throw

will this throw a p0420?

spray_bombed on Feb 18, 2008

Feb 18, 2008 03:02 PM
by spray_bombed

6

1,342

Acura RSX DC5 & Honda Civic EP3

2000, buy, cure, dcrh, defouler, defoulers, ep3, make, o2, obdii, p0420, plug, rsx, rsxs, si, spark

Spark plug defoulers!

iVteCmMdc5 on Jan 26, 2008

Jan 27, 2008 02:22 PM
by iVteCmMdc5

5

2,471

05027, 2000, cel, civic, connections, cylinder, detected, distributor, honda, lx, misfire, number, oasis, p0420, pinging, po420, recrimp, tsb

2000 civic 1.6L pings, CEL p0420

thetmaxx on Dec 24, 2007

Dec 24, 2007 01:47 PM
by thetmaxx

3

3,637

All Motor / Naturally Aspirated

car, code, fuel, happenins, highway, honda, integra, kia, lean, misfires, odyssey, p0420, sporadic, stalls, whats

HELP! Engine misfires, stalls out on highway or at idle, no one knows why!!

lemondriver on Nov 23, 2007

Nov 25, 2007 09:39 AM
by PyroProblem

6

3,894

b16a2, cel, honda, odyssey, p0420, po0420

cel p0420 (i think i know)

nixcite on Nov 9, 2007

Nov 10, 2007 03:51 PM
by nixcite

3

1,730

1998, 2001, 98, accord, cap, cat, code, efficiency, fuel, gas, honda, loose, p0420, p1456, po420, v6

1998 Accord gas cap / P0420 code??

northworm on Nov 9, 2007

Nov 10, 2007 09:24 AM
by Chiovnidca

7

8,154

02, back, bad, cat, catalytic, converter, converters, flow, good, high, honda, inspection, nj, p0420, replace, smog

How do I know if my catalytic converter is bad or ok?

ShinotakuX on Nov 5, 2007

Nov 5, 2007 01:25 PM
by Padawan

9

13,273

accord, cold, honda, o2, p0420, sensor, stalling

stalling, rouff driving p0420

bougie_44 on Oct 24, 2007

Oct 24, 2007 09:34 AM
by sony224422

1

1,604

1990, 2344601, 36532p0aa01, accord, bank, connection, crx, denso, honda, location, number, oxygen, p0420, part, prelude, sensor

oxygen sensor!

chibiko on Aug 5, 2007

Aug 5, 2007 09:02 PM
by GhostAccord

7

1,462

accord, cat, code, codes, diagram, engine, fix, h22, honda, p0132, p0420, p1259, po132, prelude, service, vtec

trouble codes P1259, P0132, and P0420

Pussy_magnet_00 on Jul 16, 2007

Jul 25, 2007 03:19 PM
by Pussy_magnet_00

6

12,329

Honda Prelude

2003, accord, catalyst, code, efficiency, efficirncy, honda, p0420, system, thread

P0420 Catalyst System Efficiency Below Efficiency

scott1ct on Jul 11, 2007

Jul 11, 2007 10:45 AM
by scott1ct

0

734

220, b16, b20vtec, cams, crazy, head, hp, hsl, integra, mans, na, p0420, poor, sentra, type, whp

best for 220 whp NA Integra

(

1 2 3)

zigg_1311 on Jul 3, 2007

Jul 6, 2007 08:03 AM
by CleanLikeJdm

70

4,270

2000, code, fix, gsr, honda, mil, o2, p0420, pipe, rear, s2000, sensor, simulator, test, waveform

P0420 cat problem- test pipe?

rebuiltSI on Jun 29, 2007

Jun 29, 2007 05:56 AM
by rebuiltSI

6

10,244

Honda Civic (2006 - 2015)

02, 2003, 2006, acura, cat, catalyst, civic, defouler, dtc, efficiency, p0420, si, simulator, threshold, tsx

DTC P0420 catalyst efficiency below threshold

FG_Coupe on Jun 21, 2007

Jun 22, 2007 09:03 AM
by MonkeyConQueso

7

2,386

2004, accord, bank1, cats, highflow, honda, hondadude, nsx, o2, p0135, p0420, p0430, picture, po13502, sensor, sensor1

Just replaced O2 sensor - STILL have CEL - P0135

98savage on Jun 14, 2007

Jun 15, 2007 09:35 PM
by 98savage

9

29,714

2000, 98, 98acura, acura, cel, code, gsr, integra, p0420, po420

CEL Code : P0420

Frostwhite_DB8 on Apr 14, 2007

Jun 2, 2007 09:33 AM
by ForceFed Motorsports

14

1,870

EM1SiR85 on May 26, 2007

May 26, 2007 05:15 PM
by Eran

6

895

104, 99, b18c5, cat, civic, eliminator, flow, high, honda, mil, obx, p0420, pipe, rid, test

OBX high flow cat

sickofitall1113 on Apr 23, 2007

May 14, 2007 12:03 AM
by 1.8L_allmotormilitia

13

5,376

Honda Civic (2001 - 2005)

02, 0420, 2001, 240, camshaft, car, catalytic, civic, code, converter, crv, honda, location, md, o420, p0420, sensor, toyotas

Code P 0420?? Is it an 02 sensor or catalytic converter?

hondagal07 on Apr 1, 2007

Apr 2, 2007 10:13 AM
by skipbarber

5

3,348

0420, 2007, accord, code, codes, honda, p0420, po420

the accord is throwning p0420 code.

accordinglyevil on Mar 30, 2007

Mar 30, 2007 04:54 PM
by accordinglyevil

0

737

1992, accord, denso, honda, o2, oxygen, p0420

ok, i ordered my new denso O2's (because of P0420), now what...

361 accord on Mar 12, 2007

Mar 15, 2007 04:17 PM
by 361 accord

8

747

1999, 1999honda, accord, codes, emission, honda, p0401, p0420, p1259, p1491, pressure, problems, solenoid, trouble, vtec

1999 honda Accord, many trouble codes

coopdawg1979 on Mar 6, 2007

Mar 6, 2007 07:02 PM
by Mr Yamada

1

5,300

1999, accord, code, codes, honda, low, obd, obd2, oil, p0171, p0401, p0420, p1259, p1491, prelude

Having troubles....PLEASE HELP

coopdawg1979 on Mar 5, 2007

Mar 6, 2007 04:37 PM
by Twixle

5

2,008

2002, 67, catalyst, cel67, check, civic, code, defective, efficiency, engine, honda, integra, p0420, si, system, threshold

CEL 67? Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system

xunkn0vvnx on Feb 23, 2007

Feb 24, 2007 12:07 AM
by Stein

3

2,756

Acura Integra Type-R

00, 02, 0420, 2000, 2001, acura, civic, code, error, fault, honda, insight, odyssey, p0420, si

error code p0420

SIvic2000 on Feb 20, 2007

Feb 20, 2007 03:10 PM
by SIvic2000

0

1,087