p0420 - RX8Club.com - Threads Tagged with p0420

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2000, backfire, bank, catalyst, clears, code, efficiency, engine, giuffre, grand, lawsuit, mazda, p0420, po420, rx8, threshold

P0420 Cataclyst System Efficiency Below Threshold (Bank 1)

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1 2)

bugster on 08-07-2008

10-09-2019 01:29 PM
by Imgunnaownu

44

84,659

Series I Trouble Shooting

Whole slew of problems and some more newbie questions.

MarkX on 07-22-2015

07-31-2015 07:50 AM
by Steve Dallas

3

9,594

New Member Forum

P0420 CAT System Below Threshold - Options?

johnrellis on 06-02-2015

06-03-2015 03:09 AM
by johnrellis

4

4,837

New Member Forum

CEL, P0420 on RX8 series 1 2005

Iceman808 on 04-26-2014

04-26-2014 11:29 PM
by BigCajun

17

11,384

Series I Trouble Shooting

bad, cat, compression, fire, front, idling, low, misfire, p0301, p0420, pam, rebuild, reset, rotor, rx8, rx8club

P0301 after rebuild please help

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1 2)

cbmdj13b on 04-07-2012

09-27-2013 02:34 PM
by Fazil Malik

34

9,260

Series I Tech Garage

2004, 30, a4, audi, catalytic, catlytic, chrysler, converter, covers, mazda, p0420, powertrain, rx8, warranty, warraty

Code P0420... covered under powertrain warranty?

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1 2)

Hercules on 06-05-2008

05-20-2013 10:42 AM
by j9fd3s

34

41,837

Series I Tech Garage

2004, beat, cat, cel, code, de, mazda, midpipe, p0420, pipe, racing, rx7, rx8, screw, sound, test

P0420 CEL W/Racing Beat Test Pipe

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1 2)

1990 GT-X on 01-26-2013

01-28-2013 09:31 AM
by RIWWP

32

8,372

Series I Tech Garage

carolina, cel, code, inspection, labs, lacquer, north, p0420, pass, quickfix, rid, rx8, rx8club, test, thinner, turboxs, wont

CEL p0420 quick fix please.

Rx8manRich on 06-07-2012

12-17-2012 07:42 PM
by splinter

12

16,874

Series I Tech Garage

04, 2005, cap, cel, clear, code, gas, mazda, open, p0420, p0456, po456, rx8, rx8club, shooting, trouble

Cel code p0456?????

bmarrs on 12-08-2009

12-04-2012 06:39 PM
by j9fd3s

7

10,705

Series I Tech Garage

bank, bhr, catalyst, check, efficiency, engine, long, mazda, midpipe, p0420, rp, rx8, sitting, supercat, threshold, time

P0420 error; Thinking about replacing CAT

TRIGG3R12 on 05-18-2012

11-18-2012 02:01 PM
by TeamRX8

13

7,846

Series I Aftermarket Performance Modifications

acceleration, audi, brian, cams, crower, low, mark, mazda, missfires, p0302, p0420, possibly, power, rx8, shutter

P0302 Missfire and Power Low (-60BHP) - Help Please

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1 2)

Mr Stu on 10-10-2012

10-26-2012 11:31 AM
by Mr Stu

27

4,402

Series I Tech Garage

bad, bolt, broken, cat, catalytic, clogged, code, ess, mazda, p0420, reason, rx8, symptoms

catalytic convertor

671rx8 on 07-31-2012

08-29-2012 09:04 PM
by wcs

10

2,817

Series I Trouble Shooting

accelerating, code, exhast, gurgling, leak, leaking, noise, oil, open, p0420, rpm, run, rx8, ss, ssv, stuck, twins

Could this be my SSV??

LBrown8 on 07-06-2012

07-13-2012 08:16 AM
by DarkBrew

20

6,162

Series I Trouble Shooting

25, accountlogoutreason, car, cel, code, codes, computer, drove, error, happen, mybb, numbers, p0139, p0420, powered, rx8, skype

Error Codes P0139, 02512, P0420

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1 2)

Alkal1ne on 07-09-2012

07-11-2012 04:30 PM
by fyrstormer

25

9,897

Series II Technical and Trouble shooting

100, code, failed, inspection, mazda, miles, nc, p0420, p0420rx8club, rx8, rx8club, wont

P0420 catylist code..

Rx8manRich on 06-14-2012

06-14-2012 06:28 PM
by RIWWP

1

2,430

Series I Tech Garage

burning, burnt, car, cat, catalytic, catylic, change, code, coming, conver, converter, converters, installation, p0420, smell

New Catalytic Converter

coach mike on 07-29-2010

05-20-2012 07:04 AM
by nycgps

6

10,626

Series I Tech Garage

420, big, cat, catalytic, code, converter, deal, diagnosis, diagnostic, effen, emissions, federal, p0420, po, rx8, warranty

Diagnostic Fee on P0420

Polish Person on 05-03-2012

05-10-2012 07:03 PM
by ShellDude

8

2,409

General Automotive

aacatalyst, bank, efficiency, malfunction, mazda, monitor, p0420, rx8

Help with CEL Codes!

iMotoPilot on 05-09-2012

05-09-2012 03:49 PM
by iMotoPilot

19

1,106

Series I Trouble Shooting

02, 0420, bad, baro, engine, gas, miles, o2, p0420, reading, replacement, reset, response, rx8club, sensor, slow

P0420, o2 sensor, & gas choices o.O

zoomeight on 02-12-2012

02-14-2012 07:49 PM
by zoomeight

11

2,744

Series I Trouble Shooting

2000, kn, mazda, miata, p0420, p0420rx8club, yep

Bit by P0420

RadRedR3 on 02-09-2012

02-10-2012 08:42 AM
by RadRedR3

6

1,562

RX-8 Discussion

P0420/p0301

kathykat0710 on 06-19-2011

01-14-2012 09:09 AM
by Mazurfer

13

8,071

Series I Trouble Shooting

cel, code, p0420, po420, rx8, troubleshooting

Cel p0420

Ndsully on 10-19-2011

10-19-2011 01:01 PM
by Ndsully

10

1,726

Series I Trouble Shooting

{ FS }

2004 RX8 GT Package

silkd on 01-10-2011

07-17-2011 04:11 AM
by Dark_Horse88

6

1,981

RX-8's For Sale/Wanted

05, california, cel, emission, emissions, mazda, miles, ohio, p0420, premix, premixing, rx8, void, warranty, warrenty

Premix and emissions warranty

myzon26 on 04-12-2011

04-18-2011 01:41 PM
by myzon26

13

3,427

RX-8 Discussion

04, cat, club, code, data, delete, mazda, mode, oxygen, p0420, p420, problems, rx, rx8, sensor

P0420 Help

silkd on 03-10-2011

03-18-2011 10:41 PM
by stvshaw

6

4,170

Series I Tech Garage

12w6, 2004, catalytic, code, converter, cost, epagovomsconsumerwarr95fstxt, mazda, p0420, pepboys, po420, ports, problems, replacing, rx8, rx8club

P0420 Catalytic Converter?

renaldo on 03-31-2009

02-25-2011 02:22 AM
by bumblebeerx8

17

9,780

Series I Trouble Shooting

badge, badges, black, diy, emblem, emblems, flying, make, mazda, p0420, rx8, rx8clum

Flying m badge issues

AJ312 on 02-13-2011

02-15-2011 03:24 PM
by AJ312

10

1,913

Series I Exterior Appearance and Body Kits

09, 2004, acadia, cel, code, codes, create, mazda, p0300, p0302, p0420, rx8, trouble, wrx

Cel p0420 p0302

shocktroop on 11-10-2010

11-10-2010 03:46 PM
by DarkBrew

1

2,073

Series I Trouble Shooting

, 82, bad, code, gas, overheating, p0420, po420, relay, rx7, rx8, shut, slightly, smell, sulphur, thermostat, wiring

P0420 and overheating

miya on 06-10-2009

09-13-2010 03:06 AM
by yiksing

14

10,184

Series I Trouble Shooting

catalyst, catback, check, code, efficiency, engine, exhaust, installing, light, p0240, p0420, po240, rx8, rx8clubnet, system, threshold

Help!..... please check engine light is on p0240

bkkkk93 on 01-23-2010

01-23-2010 08:42 PM
by bkkkk93

8

3,784

Series I Trouble Shooting

0355, 04, code, ecu, error, mazda, p0031, p0420, po420, rx8

ECU error Code help needed

Paul Woodsford on 12-08-2009

12-08-2009 01:18 PM
by kersh4w

1

1,538

Series I Tech Garage

2004, code, codes, coils, engine, error, fault, infamous, mazda, obd, p0420, p420, po420, rx, rx8

ah! the infamous P0420 code! what now

Xander on 06-04-2009

06-08-2009 02:54 PM
by NotAPreppie

5

3,360

Series I Trouble Shooting

1985, 2004, bad, catalytic, check, converter, covered, empty, engine, grand, light, p0420, rx, rx7, rx8, warranty

P0420 and Catalytic converter that empty inside!!!

stask1 on 01-15-2009

03-19-2009 01:39 PM
by Ceez76

7

12,089

Series I Trouble Shooting

aftermarket, bank, cat, catalyst, efficiency, evo, exhaust, ftc, nc, p0420, rx8, rx8club, stock, system, threshold

Help with Cat please ! P0420 Catalyst system efficiency below threshold

Sheehan on 02-18-2009

02-22-2009 03:12 PM
by Easy_E1

24

9,590

Series I Trouble Shooting

2007, code, fault, gauge, installing, leading, location, mazda, o2, p0420, po420, rx8, sensor, sensors, stock, troubleshooting, wwwp0420com

P0420 Code, odd

L337fpc on 02-15-2009

02-15-2009 05:31 PM
by L337fpc

5

7,873

Series I Trouble Shooting

2003, 5500, 6k, cel, civic, fc, hesitates, hesitation, limp, mode, p0420, rx7, rx8, si, surges

Hesitation at 6K plus

Scorpio8 on 11-11-2008

11-14-2008 09:55 AM
by Scorpio8

9

1,619

Series I Trouble Shooting

2003, 2007, accessport, accesstuner, catless, cobb, corolla, efficiency, frost, mazdaspeed, nick, p0420, plug, race, requirements, scca, spark, threshold, toyota, tuning, turn

AccessPORT Alpha test started

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huzer21 on 02-16-2008

10-10-2008 03:55 PM
by edfred

662

47,829

Series I Engine Tuning Forum

What's up with the weather lately!!!!

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1 2)

ChristInBen on 02-06-2008

02-06-2008 10:55 PM
by Footman

25

2,162

Canada Forum

4020, catalytic, check, code, converter, engine, failed, fix, light, mazda, obd, p0420, p420, plug, po420, rx8, spark

Check engine light P0420

u1cracka on 04-08-2007

04-13-2007 02:23 PM
by u1cracka

7

6,176

Series I Tech Garage

catalyst, cell, efficiency, p0420, rx, rx8, system, threshold

Any Ideas for a P0420 cell?

rx8guy86 on 12-05-2006

01-31-2007 07:00 PM
by rx8guy86

16

2,332

Series I Aftermarket Performance Modifications