po420 - Honda Civic Forum - Threads Tagged with po420

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Honda Civic Forum

91, acceleration, cat, civic, clogged, honda, p0420, po420, slow, start

CEL P0420, cat clogged or below efficiency?

got2run5 on Jun 4, 2013

Jun 4, 2013
by got2run5

2

2,281

Mechanical Problems/Vehicle Issues and Fix-it Forum

01, 2005, 2007, civic, code, codes, engine, honda, o2, obd, obd2, p0420, pics, po420, sensor

P0420 and P0420PD OBDII Codes

EarthCanBeMoved on Jul 9, 2009

Dec 21, 2012
by Rep da 808

7

13,552

7th Generation Civic 2001 - 2005

03, 10, 2002, 2004, 7th, change, civic, fine, gas, hight, honda, loss, mod, noise, octane, p0420, po420, power, problem, runs

P0420 - What is the next step?

Phizy on Oct 16, 2012

Oct 17, 2012
by Phizy

7

2,391

Mechanical Problems/Vehicle Issues and Fix-it Forum

2003, 2008, cat, catalytic, civic, code, converter, fouler, honda, magnaflow, mahnaflow, o2, p0420, po420, problems

Dreaded P0420 Code with new Magnaflow Cat. Converter!

WKD DRGN on Aug 7, 2012

Aug 12, 2012
by asianboy781

4

7,170

Mechanical Problems/Vehicle Issues and Fix-it Forum

check, civic, engine, homemade, inspection, light, magnaflow, massachusetts, o2, po420, robearracing, sensor, spacer

Hello...

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1 2)

GreenMachineDX on Jun 14, 2011

Aug 1, 2012
by lowlife9

54

3,805

7th Generation Civic 2001 - 2005

2000, 99, cat, civc, civic, code, dx, eld, engine, honda, p0420, p1381, po420, stupid, tuneup, wont

Need some help with a 99 civic I bought.

hawkijustin on Feb 14, 2012

Feb 14, 2012
by hawkijustin

0

1,470

Mechanical Problems/Vehicle Issues and Fix-it Forum

07, 08, 2008, civic, code, coverage, engine, fuse, honda, light, p0420, po420, resets, si, warranty

2008 Civic P0420

giorgiolouis on Jan 17, 2012

Jan 21, 2012
by ezone

4

11,246

8th & 9th Generation Civic 2006 - 2015

157654, 2911bit, aftermarket, civic, code, error, heaterac, honda, id, o2, p0420, p420, po420, rid, sensors

p0420 code thrown

MelJ on Jan 7, 2011

Nov 11, 2011
by DavidRey

14

6,887

Mechanical Problems/Vehicle Issues and Fix-it Forum

1999, 99, bumper, cat, civic, civiv, fit, fix, fog, front, honda, light, p0420, party, po420, si

00' Si po420

Em1 Vtec on Feb 24, 2011

Mar 11, 2011
by Em1 Vtec

27

3,758

Mechanical Problems/Vehicle Issues and Fix-it Forum

00, 03, 2003, 2005, 2007, cel, check, civic, code, engine, honda, hybrid, p0420, po420, si, turbo

CEL with P0420.

kcanoy on Sep 28, 2010

Jan 18, 2011
by Squeeken

4

15,199

6th Generation Civic 1996 - 2000

2004, car, check, civic, code, damage, engine, fixing, fouler, honda, light, o2, p0420, po420, si

P0420 code with some history

brians02ex on Aug 30, 2010

Aug 30, 2010
by lazlong

4

10,522

Mechanical Problems/Vehicle Issues and Fix-it Forum

17, bank, check, civic, code, diy, engine, forums, honda, light, lightcost, liter, p0420, p420, po420, reader

P0420 code with some history

brians02ex on Aug 30, 2010

Aug 30, 2010
by brians02ex

0

1,802

Mechanical Problems/Vehicle Issues and Fix-it Forum

2000, 2001, bank, catalyst, catylist, ceck, check, civic, efficiency, engine, enging, fix, honda, po420, problem, threshold

bank one catalyst efficiency below threshold

himileage on Mar 28, 2010

Mar 29, 2010
by himileage

2

1,753

Mechanical Problems/Vehicle Issues and Fix-it Forum

what is the best catalytic for 01 LX

deadliner on Mar 18, 2010

Mar 20, 2010
by deadliner

4

1,154

7th Generation Civic 2001 - 2005

2003, 2004, change, check, civic, code, crv, engine, fixing, gas, honda, light, oil, overdue, overfilling, p0420, p1457, po420, si, tank

P0420 and P1457 Together?

pulloff on Nov 28, 2009

Jan 25, 2010
by gearbox

5

13,584

Mechanical Problems/Vehicle Issues and Fix-it Forum

02, 2002, 2003, bank1, cat, cataytic, civic, code, converter, dies, efficiency, engine, honda, low, lx, po420, si, starts

Codes P1361 & P0420

gettinthatfosho on Jan 14, 2010

Jan 14, 2010
by gearbox

1

5,895

Mechanical Problems/Vehicle Issues and Fix-it Forum

P0420

xChinox on Oct 30, 2009

Oct 30, 2009
by xChinox

0

2,265

6th Generation Civic 1996 - 2000

2001, bank, check, civic, code, codes, diagnosis, engine, fix, forums, honda, light, maintenace, po420, read, reset

Check engine light and AC

brent_01civic_e on Oct 6, 2009

Oct 6, 2009
by brent_01civic_e

0

5,831

Mechanical Problems/Vehicle Issues and Fix-it Forum

2000, 2001, 2004, 99, cat, catalytic, check, civic, code, converter, engine, honda, p0420, po420, returning

CEL P0420 after installing a Cat Converter

dazzy999 on Jan 14, 2008

Aug 31, 2009
by Scarecrow

1

3,432

Engine

06, 1997, 2001, 99, catalytic, civic, code, converter, honda, light, p0420, po420, problem, si, srs, stalling

Stalling problem, threw P0420 code., help?!

ffspiel on Apr 1, 2009

Apr 6, 2009
by ffspiel

8

21,535

Engine

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

2

1,462

Mechanical Problems/Vehicle Issues and Fix-it Forum

cel problem.help ...

Qthangcivic on Nov 9, 2006

Nov 9, 2006
by d17acivic

1

1,153

Mechanical Problems/Vehicle Issues and Fix-it Forum

10, bogging, cam, civic, d17, dyno, iac, po420, preparing, sec, sleeves, sparkplug, stall, turbo, valvetrain, y8

D17 weaker than I thought

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1 2 3)

ronaldo9 on Nov 6, 2006

Nov 8, 2006
by familycar

75

10,339

Bolt-on Engine Performance

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

1

1,332

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

0

1,074

Mechanical Problems/Vehicle Issues and Fix-it Forum

P0420

gillio215 on Jun 4, 2006

Jun 4, 2006
by gillio215

0

4,334

Mechanical Problems/Vehicle Issues and Fix-it Forum

08, 3rd, added, car, civic, code, cuts, cutting, fuel, gear, honda, injector, po420, shifting, si, turbo

Fuel cutting out when shifting from first (6000rpms) into second?

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1 2 3)

04_CIVIC_HFP on Apr 15, 2006

May 2, 2006
by familycar

75

6,302

Engine Swaps

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

6

1,145

Mechanical Problems/Vehicle Issues and Fix-it Forum

Catalitic Convertor is Toast. What are my options?

2000IndigoX on Jun 15, 2004

Jun 17, 2004
by 2000IndigoX

15

1,208

General Honda Civic Forum Archive.

2002, cap, catalyst, civic, code, efficiency, fuel, honda, indicator, lamp, loose, lx, malfunction, malfunctioning, po420, system, threshold

malfunction indicator lamp problem

fastcivic03 on May 1, 2004

Jun 1, 2004
by Vteced02civic

9

7,543

Mechanical Problems/Vehicle Issues and Fix-it Forum