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Threads Tagged with p0420

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98, check, civic, code, engine, forums, fuel, honda, light, p0420, phantom, problem, pump

Need Help! Phantom P0420

joker2498 on Jul 25, 2010

Jul 25, 2010 06:44 PM
by joker2498

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0

1,832

Mechanical Problems & Technical Chat

2002, 4dr, cel, civic, code, codep0420, honda, overheating, p0420

Cooling Problems, now cel is on w/code P0420

dtrscivic on Jul 19, 2010

Jul 19, 2010 08:09 AM
by dtrscivic

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0

1,615

Mechanical Problems & Technical Chat

96, car, cat, cel, civic, code, cx, efficiency, honda, low, p0420, thowing

car throwing new code

faifu27 on May 31, 2010

May 31, 2010 07:28 PM
by 94civichatchback

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1

929

Mechanical Problems & Technical Chat

1997, 420, car, civic, code, codes, days, hoda, honda, hx, p0420, po420, rainy, stall, troubleshooting

PO420 trouble code help

shahanaz on May 23, 2010

May 23, 2010 08:46 PM
by RonJ

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1

1,811

Mechanical Problems & Technical Chat

98, changing, civic, code, engine, fix, forum, honda, o2, p0420, po420, primary, secondary, sensor, war

p0420

az321 on May 5, 2010

May 6, 2010 06:31 AM
by RonJ

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4

3,460

Mechanical Problems & Technical Chat

Angry

01, 2000, bogging, car, cel, civic, code, cold, honda, p0132, p0420, stalling, symptoms, turns, unlisted, weather

2 Attachment(s)

01 civic bogging/stalling

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Multi-page thread

1 2)

unlisted on Sep 25, 2008

Dec 9, 2009 02:18 AM
by unlisted

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15

6,848

Mechanical Problems & Technical Chat

Question

2000, civic, honda, p0420

p0420

pennyloafer on Dec 8, 2009

Dec 8, 2009 11:39 AM
by pennyloafer

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0

918

Mechanical Problems & Technical Chat

1998, 420, 98, catalyst, civic, code, diagnostic, dx, efficiency, fix, honda, manual, obd, p0420, reset

98 civic obd code po420

dctaz37 on Nov 8, 2009

Nov 10, 2009 05:35 AM
by dctaz37

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5

4,046

Mechanical Problems & Technical Chat

1997, 97, blown, check, civic, degreaser, engine, gasket, honda, hx, leak, light, p0420, p1259, solenoid, vtec

1 Attachment(s)

1997 HX head gasket (possibly)

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Multi-page thread

1 2)

longdrive352 on Jul 22, 2009

Jul 29, 2009 09:05 AM
by 94civichatchback

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12

5,941

Mechanical Problems & Technical Chat

1998, bad, civic, honda, icm, idle, low, noise, p0420, po420, start

Help: P0420

michael.allen on Apr 8, 2009

Apr 16, 2009 05:50 PM
by michael.allen

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9

1,193

Mechanical Problems & Technical Chat

99, bad, cat, civic, civics, clear, code, conv, crv, error, fuse, honda, p0420, po420, signs

Cat Conv error code Help

dkyer420 on Oct 23, 2008

Apr 12, 2009 12:56 PM
by bradf_nc

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6

1,479

Mechanical Problems & Technical Chat

1, bank, cat, catalyst, civic, efficiency, effieciencey, emission, honda, p0420, po420, sys, system, test, threshold

P0420 - Catalyst System Efficiency Below Threshold (Bank 1) help

DannyLB on Mar 17, 2009

Mar 17, 2009 03:59 PM
by lowlife9

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3

14,347

Header, Intake, & Exhaust

0420, 2001, car, civic, code, engine, fuel, honda, humming, ignition, noise, p0420, po420, pump, rear, sparkplug, stalls, start, wont

P0420 help

slkric on Jan 15, 2009

Jan 16, 2009 12:33 PM
by slkric

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4

2,551

Mechanical Problems & Technical Chat

Smile

15, 97, cat, civic, fuse, honda, intake, manifold, o2, oxygen, p0420, picture, sensor, size, socket, wrench

CAT Replacement/intake manifold

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Multi-page thread

1 2 3)

maverick0923 on Oct 27, 2008

Oct 28, 2008 12:19 PM
by brutekiller787

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20

6,192

Header, Intake, & Exhaust

actron, autoscanner, car, civic, communicate, computer, cp9145, d16y7, ecm, ecmpcm, fails, fitv, honda, p0420, p0505, pcm, procedure, reset, troubleshooting

3 Attachment(s)

Please watch this video!!

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Multi-page thread

1 2 3)

davidt222 on Sep 23, 2008

Oct 4, 2008 06:44 AM
by RonJ

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29

5,381

General Civic Talk

03, 2008, 99, aftermarket, civic, code, exhaust, honda, p0420, p420

Help! P0420 code

ducci on Sep 15, 2008

Sep 15, 2008 04:00 PM
by RonJ

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3

1,356

Header, Intake, & Exhaust

Unhappy

02, 2001, 96, civic, code, cycle, defouler, drive, fix, honda, o2, p0420, p420, po420, simulator, trick

P0420 is driving me nuts

MoMoney on Aug 24, 2008

Aug 24, 2008 08:46 PM
by MoMoney

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0

1,007

Mechanical Problems & Technical Chat

97, civic, code, honda, lx, p0420

1 Attachment(s)

Dreaded P0420

protegechris on Aug 20, 2008

Aug 22, 2008 09:14 AM
by protegechris

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4

910

Mechanical Problems & Technical Chat

00, 05, 98, bad, catalytic, civic, code, gas, im, leak, mileage, mitsubishi, muffle, oem, p040, p0420, si

HELP....question about emission????

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Multi-page thread

1 2)

Civic Si 00 on Jan 17, 2008

Jan 21, 2008 01:54 PM
by Civic Si 00

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19

2,270

Mechanical Problems & Technical Chat

2004, 99, aftermarket, cat, catalytic, cel, civic, converter, converters, ecm, ecu, honda, p0420, replaced, reset

CEL P0420 after installing a Cat Converter

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Multi-page thread

1 2)

dazzy999 on Jan 14, 2008

Jan 16, 2008 07:52 AM
by dazzy999

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11

5,025

Mechanical Problems & Technical Chat

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