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EvolutionM - Mitsubishi Lancer and Lancer Evolution Community
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Threads Tagged with
p0420
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Threads Tagged with
p0420
Thread / Thread Starter
Last Post
Replies
Views
Forum
P0420 cel
(
1
2
3
)
Raikiri
on May 3, 2009
Dec 21, 2009
10:41 PM
by
Raikiri
43
6,379
04-06 Ralliart General
check engine light comes on sometimes?
speedfreak24
on Dec 5, 2009
Dec 6, 2009
12:44 AM
by
SmurfZilla
7
3,546
Evo General
Cobb AP: Best way to solve this without Custom Tune
(
1
2
)
evoxkrazy
on Nov 15, 2009
Dec 2, 2009
05:34 PM
by
darthvader
24
4,453
Evo X Engine Management / Tuning Forums
Miss firing in multiple cyclinders
(
1
2
)
DC2toEVO8
on Nov 27, 2007
Nov 23, 2009
08:37 PM
by
huevosrancheros
28
2,567
Evo Engine / Turbo / Drivetrain
Can P0420 error code be caused by air/fuel ratio gauge?
(
1
2
)
dvd_mi
on Oct 26, 2009
Nov 5, 2009
09:41 AM
by
EVOGXR
17
4,264
Evo Engine / Turbo / Drivetrain
P0420 antifouler question & code clearing?
(
1
2
)
goofygrin
on Sep 15, 2008
Oct 4, 2009
06:05 PM
by
atduly
20
5,219
Evo X Engine / Turbo / Drivetrain
cel codes p0300 and p0420
vassago
on Sep 24, 2009
Sep 26, 2009
07:05 AM
by
delongedoug
2
1,662
Evo Engine / Turbo / Drivetrain
Anyone Have any trouble with UR Test pipe with the wideband blug?
chris1012008
on Sep 4, 2009
Sep 8, 2009
01:45 PM
by
Euripides
5
792
09+ Ralliart Engine/Turbo/Drivetrain
HELP!!!! ECU code: p0420
MicRX
on Aug 13, 2009
Aug 14, 2009
06:09 AM
by
zeus1
4
2,474
Evo General
P0420 after running race gas mix...
raasfaas
on Jun 24, 2009
Jun 24, 2009
10:02 PM
by
raasfaas
5
1,065
Evo Engine / Turbo / Drivetrain
P0420 Code with Speed Circuit Test Pipe??
criptballer
on Apr 26, 2009
May 11, 2009
10:43 AM
by
Boostd4
5
3,925
Evo X Engine / Turbo / Drivetrain
P0171=help!
(
1
2
3
)
SRT-TO-EVO
on Dec 16, 2008
May 11, 2009
08:15 AM
by
SuperchargedGTZ
39
5,776
Evo Engine / Turbo / Drivetrain
Pic Request of Stock Evo IX exhaust
(
1
2
)
icrnk
on Apr 6, 2009
Apr 10, 2009
05:45 PM
by
icrnk
24
7,697
Evo General
could these four codes be related?
blackblaze427
on Feb 22, 2009
Feb 23, 2009
04:37 PM
by
boosstboy
3
1,252
Evo Engine / Turbo / Drivetrain
How to fix p0420 code
monkeyevo
on Feb 20, 2009
Feb 20, 2009
02:47 AM
by
mitdrx
5
9,210
Evo Engine / Turbo / Drivetrain
code P0420 Catalyst System Efficiency Below Threshold (Bank 1)
gqcode
on Jan 27, 2009
Jan 29, 2009
05:11 AM
by
gqcode
4
14,961
EvoM New Member / FAQs / EvoM Rules
P0420 And Emissions Testing
chmodlf
on Dec 14, 2008
Dec 14, 2008
09:42 AM
by
burninrubb24
5
2,408
Evo Engine / Turbo / Drivetrain
P0420 code.....possible causes?
(
1
2
)
Dr.Sound
on Jun 7, 2006
Nov 5, 2008
09:45 AM
by
Julian
23
16,102
Evo Engine / Turbo / Drivetrain
attn: Ultimate Racing Metal HFC owners!
antics22
on Aug 18, 2008
Sep 15, 2008
07:30 AM
by
goofygrin
8
2,341
Evo X Engine / Turbo / Drivetrain
question ne3d help
(
1
2
)
ym3n3
on May 24, 2008
May 25, 2008
08:29 AM
by
ym3n3
15
1,482
Evo General
200 miles on my new Evo X --- now needs a new catalytic converter
(
1
2
3
)
zarl
on Mar 21, 2008
Mar 23, 2008
08:56 PM
by
zarl
44
5,034
Evo X General
Test Pipe On Stock car?
TwistedEvo8
on Dec 14, 2007
Feb 8, 2008
01:02 AM
by
TwistedEvo8
12
1,386
Evo Engine / Turbo / Drivetrain
P0401 and p0420
(
1
2
)
20Grockit
on Jan 19, 2008
Jan 26, 2008
07:20 PM
by
20Grockit
23
3,185
Evo Engine / Turbo / Drivetrain
CHeck Engine Light.
FloopyDisk
on Sep 10, 2007
Sep 10, 2007
09:14 PM
by
sikrsix
6
753
Evo Engine / Turbo / Drivetrain
Help Diagnose my Daily Driver
(
1
2
)
dridge11
on May 16, 2007
May 22, 2007
08:15 AM
by
cfdfireman1
20
1,058
The Loft / EvoM Car Talk Corner
P0420 code?
(
1
2
)
dbdude
on Sep 26, 2005
May 2, 2007
03:24 AM
by
oneguy
18
11,230
Evo Engine / Turbo / Drivetrain
any got a cat??
apevo8
on Apr 26, 2007
Apr 28, 2007
04:30 AM
by
LoCo4
11
761
Midwest Region
P0420 doesn't effect performance my a$$
smp3000
on Mar 30, 2007
Mar 30, 2007
09:36 AM
by
smp3000
13
8,363
Evo Engine / Turbo / Drivetrain
P0420 with stock exhaust?
Rnm
on Mar 18, 2006
Mar 21, 2006
05:49 PM
by
Rnm
5
2,247
Evo General
FS: Perrin O2 Simulator CEL Fix
PapitoEVO8
on Jan 24, 2006
Jan 25, 2006
07:45 PM
by
PapitoEVO8
3
591
For Sale/WTB - Engine / Drivetrain / Power
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