po420 - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community

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catalytic, delete, enable, erase, erasing, evo, evo8, fix, monitoring, p0420, patch, po420, remedy, remove, spacer

p0420 delete/fix???!!!!

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bulhas on Jul 8, 2010

Mar 15, 2015 10:54 AM
by robyn402

24

7,566

09+ Ralliart Engine/Turbo/Drivetrain

2006, back, buschur, cat, evo, hfc, ix, p0420, pipe, po420, racing, stock, test, testing, ur, vcds

UR Test Pipe P0420 Fix?

ExtremeDSM on Feb 10, 2012

Feb 23, 2012 06:40 AM
by rjsdxm

14

5,118

Evo X Engine / Turbo / Drivetrain

02, cel, code, evo, evolution, fix, ix, lancer, mitsubishi, o2, p0420, po420, rear, sensor, wrx

P0420 CEL fix rear 02 sensor

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rewindnottm on Jan 23, 2010

Oct 9, 2011 06:02 PM
by NateDaJew

85

35,076

ECU Flash

p0420

EvoOtto on Jun 21, 2011

Jun 28, 2011 11:20 AM
by EvoOtto

6

1,659

09+ Lancer Ralliart General

53050012, disable, evo, evom, fix, fixes, p0420, po420, turn

How To Fix P0420

jamie_v1 on Oct 27, 2010

Mar 27, 2011 06:16 PM
by jd888jd

14

3,140

Evo X Engine Management / Tuning Forums

0420, check, code, engine, evo, evox, fuel, li, light, p0420, p1870, po420, pulled, service, solutions

NEED HELP FOR P1870 and P0420

jackfrog on Mar 5, 2011

Mar 7, 2011 06:54 AM
by jackfrog

2

1,869

Evo X General

cats, cel, clear, cod, code, emission, engine, fouler, lancer, light, mitsubishi, p0420, p0421, po420, trick

CEL with OBDII code P0420 or P0421

Hitnrun on Feb 22, 2011

Mar 5, 2011 09:27 PM
by sioux90

1

5,716

Lancer Troubleshooting

02, 2008, ams, code, evo, evo8, evolutionm, fix, lancer, o2, p0420, po420, removal, spacer, spacers, trick, x

Solutions for eliminating P0420 with AMS O2 spacer on?

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1 2)

evoyao on Dec 5, 2009

Dec 5, 2010 06:21 PM
by Bighec

28

9,643

Evo X Engine / Turbo / Drivetrain

04, 2000, 2005, check, chevy, code, engine, evolutionm, lancer, light, p0420, po420, ralliart, s10, vortex

P0420 code

Antonovich on Oct 10, 2010

Oct 26, 2010 07:07 PM
by lanzerralliart

11

3,489

04-06 Ralliart General

2004, catalyst, chevy, code, defouler, driving, evo, hfc, ix, p0420, plug, po420, problem, silverado, spark

Driving with P0420 code

modetm on Jul 2, 2010

Jul 3, 2010 08:30 AM
by modetm

13

6,198

Evo General

2004, 335i, drive, evo, grand, gtp, long, p0300, p0420, p0420 p0300, po300, po420, prix

Throwing P0420 and p0300 Brand New off lot!

SilverOZrally on Mar 17, 2010

Mar 21, 2010 05:14 PM
by Brokenevo

11

1,329

Evo X Engine Management / Tuning Forums

03, 2nd, catalytic, code, converter, lancer, oz, ozrally, po420, rally, replace, troubleshooting

Exhaust help

Jogenmaru on Feb 11, 2010

Feb 13, 2010 10:00 AM
by Jogenmaru

3

851

Lancer Troubleshooting

boost, cobb, code, cost, custom, disabling, ecuflash, evo, overboosting, p0420, pill, po420, removal, solve, tune

Cobb AP: Best way to solve this without Custom Tune

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1 2)

evoxkrazy on Nov 15, 2009

Dec 2, 2009 05:34 PM
by darthvader

24

4,228

Evo X Engine Management / Tuning Forums

2003, 2004, 3, code, ecu, evo, evolution, exhaust, fix, forum, lancer, mitsubishi, p0420, po420, viii

HELP!!!! ECU code: p0420

MicRX on Aug 13, 2009

Aug 14, 2009 06:09 AM
by zeus1

4

2,322

Evo General

code, disable, evo, evom, gas, ix, leaded, occasional, p0420, po420, racing, running

P0420 after running race gas mix...

raasfaas on Jun 24, 2009

Jun 24, 2009 10:02 PM
by raasfaas

5

921

Evo Engine / Turbo / Drivetrain

circuit, cobb, engine, evo, gsr, net, p0420, pipe, po420, service, speed, speedcircuit, stage, test, uicp

P0420 Code with Speed Circuit Test Pipe??

criptballer on Apr 26, 2009

May 11, 2009 10:43 AM
by Boostd4

5

3,811

Evo X Engine / Turbo / Drivetrain

2006, bank1, code, evo, evolution, fix, gsr, how, ix, mitsubishi, o2, p0420, po420, rear, sensor

How to fix p0420 code

monkeyevo on Feb 20, 2009

Feb 20, 2009 02:47 AM
by mitdrx

5

8,868

Evo Engine / Turbo / Drivetrain

1, altima, bank, catalyst, code, efficiency, evo, ix, nissan, p0420, po420, sentra, system, threshhold, threshold

code P0420 Catalyst System Efficiency Below Threshold (Bank 1)

gqcode on Jan 27, 2009

Jan 29, 2009 05:11 AM
by gqcode

4

13,345

EvoM New Member / FAQs / EvoM Rules

11, 1999, 2002, 2008, catalyst, code, efficiency, fix, focus, ford, galant, gts, lancer, level, mitsubishi, p0420, po420, required, srt4

P0420 code?

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1 2)

dbdude on Sep 26, 2005

May 2, 2007 03:24 AM
by oneguy

18

9,371

Evo Engine / Turbo / Drivetrain

po420 code *no exhaust work

lilnaz on Jun 23, 2006

Jun 24, 2006 12:30 AM
by SiCKlEyWiKeD

4

954

Evo Engine / Turbo / Drivetrain

cat, code, evo, exhaust, loose, p0420, po420, stock

P0420 with stock exhaust?

Rnm on Mar 18, 2006

Mar 21, 2006 05:49 PM
by Rnm

5

1,964

Evo General

anti, cel, eliminator, fix, fouler, lancer, mechanical, mil, o2, perrin, po420, sensor, simulator, temple, vtec

My experience with O2 fixes/simulators

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1 2)

JuancaROD on Feb 20, 2006

Feb 21, 2006 01:12 PM
by mchuang

19

9,756

Evo General

Buschur TBE with hi flow cat and po420 code help

nbpal4000 on Dec 1, 2005

Dec 1, 2005 07:50 PM
by nbpal4000

3

529

Evo Engine / Turbo / Drivetrain

bar, buschur, bushur, catalyst, downpipe, dsm, exhaust, fit, gains, inch, po420, power, stock, tie, virtex

Buschur Exhaust

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Aux. on Sep 15, 2005

Sep 19, 2005 04:18 PM
by justchil

69

7,475

Evo General

0420, 420, code, codes, lancer, mitsubishi, p0420, p0420pd, p420, pd, po, po420, solution, spearate

Two P0420 Codes? Is this normal?

vicbdn on Feb 21, 2005

Feb 21, 2005 10:14 PM
by simevo

1

2,023

Evo General

05, code, evom, mitsubishi, po420, po506, sti, troubleshooting

Having Problem with stage 1 (codes)

808silverevo8 on Dec 19, 2004

Dec 19, 2004 01:30 PM
by 808silverevo8

3

652

Vishnu Performance - California

code, engine, evo, evolution, lexus, light, mitsubishi, po420, rs300, service

Service Engine Soon

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1 2)

caymandiver75 on Sep 5, 2004

Nov 22, 2004 06:51 PM
by JTB

20

2,572

WORKS - California

P0420 = Catalyst Below Threshold

SuperchargedGTZ on Nov 7, 2004

Nov 7, 2004 01:52 PM
by plokivos

4

620

Evo Engine / Turbo / Drivetrain

2002, antifoul, cat, code, efficiency, evo, flow, high, lancer, mitsubishi, o2, p0420, plug, po420, simulator, spark

code P0420: Cat Efficiency

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1 2)

JaReDbOy on Jul 29, 2004

Sep 12, 2004 01:10 PM
by JaReDbOy

19

3,576

Evo Engine / Turbo / Drivetrain

2004, cat, cats, cel, code, evo, flo, flow, flowing, gto, high, lancer, pipe, po420, random, technologie, technology, test

Random Technology 3" High Flow cat & CEL?

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1 2 3)

TURBODAWG on May 2, 2004

Jul 8, 2004 09:52 PM
by NOVA EVO

30

4,756

Evo Engine / Turbo / Drivetrain

Threads Tagged with po420