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Honda Civic Forum
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Honda Civic Forum
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
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
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
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
Hello...
(
1
2
)
GreenMachineDX
on Jun 14, 2011
Aug 1, 2012
by
lowlife9
54
3,805
7th Generation Civic 2001 - 2005
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
2008 Civic P0420
giorgiolouis
on Jan 17, 2012
Jan 21, 2012
by
ezone
4
11,246
8th & 9th Generation Civic 2006 - 2015
p0420 code thrown
MelJ
on Jan 7, 2011
Nov 11, 2011
by
DavidRey
14
6,887
Mechanical Problems/Vehicle Issues and Fix-it Forum
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
CEL with P0420.
kcanoy
on Sep 28, 2010
Jan 18, 2011
by
Squeeken
4
15,199
6th Generation Civic 1996 - 2000
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
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
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
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
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
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
CEL P0420 after installing a Cat Converter
dazzy999
on Jan 14, 2008
Aug 31, 2009
by
Scarecrow
1
3,432
Engine
Stalling problem, threw P0420 code., help?!
ffspiel
on Apr 1, 2009
Apr 6, 2009
by
ffspiel
8
21,535
Engine
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
D17 weaker than I thought
(
1
2
3
)
ronaldo9
on Nov 6, 2006
Nov 8, 2006
by
familycar
75
10,339
Bolt-on Engine Performance
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
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
Fuel cutting out when shifting from first (6000rpms) into second?
(
1
2
3
)
04_CIVIC_HFP
on Apr 15, 2006
May 2, 2006
by
familycar
75
6,302
Engine Swaps
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.
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
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