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Threads Tagged with p0420

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Honda Civic Forum

2001, 7th, cel, civic, cold, cylinder, dtc, flashing, honda, misfire, multiple, p0300, p0302, p0303, p0420, seafoam

One last ditch effort to fix my '01 EX, any help is appreciated! FIXED!!!!

DannyK35 on Aug 26, 2008

Nov 7, 2008
by Krieger

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29

3,984

Mechanical Problems/Vehicle Issues and Fix-it Forum

2005, change, civic, flat, honda, light, mechanical, mod, motor, o2, p0420, rate, replaced, sensor, starter, wont

$500 to replace o2 sensor???

jester458 on Jan 16, 2007

Aug 17, 2008
by ugabuga

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13

2,351

Mechanical Problems/Vehicle Issues and Fix-it Forum

2001, 2002, 2006, 2007, catalytic, civic, converter, forum, honda, location, p0420, problems, sale, si, wanted

WTB: Catalytic Converter

xRiCeBoYx on Sep 18, 2007

Jan 29, 2008
by ultimatedbz

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5

1,800

Archive - Vehicles for Sale/Wanted

1999, 2002, 2008, 99, cat, catalyic, civic, code, converter, engine, honda, loud, noise, p0420, rattling, sound

rattling noise from cat converter

dazzy999 on Jan 8, 2008

Jan 14, 2008
by dazzy999

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15

6,663

Bolt-on Engine Performance

04, 0420, 05, 2000, 2004, cel, civic, code, fix, honda, mechanical, mil, p0420, po420, s2000

CEL on, P0420 Code threw

diskreet on Jan 4, 2007

Jan 8, 2007
by diskreet

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2

1,479

Mechanical Problems/Vehicle Issues and Fix-it Forum

body, car, civic, cleaning, clear, code, converter, fix, honda, o2, p0302, p0420, p0420code, po420, sensor, throtle, tune

P0420 CODE and O2 sensor conneced?

Boods on Jul 19, 2006

Jul 19, 2006
by streetglower

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1

1,336

Mechanical Problems/Vehicle Issues and Fix-it Forum

02, 96, body, civic, clean, cleaning, code, dirty, honda, o2, p0420, po420, sensor, si, spacer, throttle, throttlebody

P0420 CODE and O2 sensor conneced?

Boods on Jul 19, 2006

Jul 19, 2006
by Boods

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0

1,081

Mechanical Problems/Vehicle Issues and Fix-it Forum

01, 04, 1999, 2000, 2001, 2003, civic, code, cost, honda, lx, obd, p0420, po420, si

P0420

gillio215 on Jun 4, 2006

Jun 4, 2006
by gillio215

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0

4,347

Mechanical Problems/Vehicle Issues and Fix-it Forum

2004, catalyst, catalytic, civic, code, cure, dtc, efficiency, honda, jo, obd, obd2, p0420, picture, system, threshold

1 Attachment(s)

OBD2 code: P0420 Catalyst System Efficiency Below Threshold

04_CIVIC_HFP on Apr 30, 2006

May 15, 2006
by 04_CIVIC_HFP

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12

3,274

Mechanical Problems/Vehicle Issues and Fix-it Forum

02, buy, casper, caspers, civic, electronics, h22, honda, o2, p0420, sensor, si, sim, sims, simulator

What does the Caspers O2 sim do?

Hawaiian_Built on Sep 15, 2005

Sep 15, 2005
by ctv

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5

2,747

Bolt-on Engine Performance

1259, 1298, 2001, 2002, cel, civic, code, codes, error, fix, honda, mal, p0420, p1259, p1298, p1298p0420, system, vtec

three codes on 2001 civic ex

crizoss on Sep 4, 2005

Sep 4, 2005
by streetglower

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2

2,588

Mechanical Problems/Vehicle Issues and Fix-it Forum

Question

04, 2004, bank1, catalyst, civic, coroa, driving, efficiency, evo, honda, obd, p0420, procedures, readiness, system, threshold

2003 EX CP - P0420 Catalyst System Efficiency Below Threshold (Bank 1)????????

puffdaddy411 on Aug 24, 2005

Sep 1, 2005
by puffdaddy411

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18

15,795

Mechanical Problems/Vehicle Issues and Fix-it Forum

Cool

civic, code, hx, p0420

01 Civic HX

01hx5 on Aug 2, 2005

Aug 3, 2005
by robbclark1

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1

711

General Automotive Discussion

change, check, civic, code, exhaust, light, p0420, po420

Engine Light On with different Exhaust Tone

2000IndigoX on Jun 13, 2004

Jun 18, 2004
by 2000IndigoX

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6

1,156

Mechanical Problems/Vehicle Issues and Fix-it Forum

97, civic, honda, p0420, tec

Tech question on 97 civic

pdxbiker on Dec 19, 2002

Dec 20, 2002
by 666

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1

602

General Honda Civic Forum Archive.

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