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Honda Civic Forum
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Threads Tagged with
p0420
Thread / Thread Starter
Last Post
Replies
Views
Honda Civic Forum
One last ditch effort to fix my '01 EX, any help is appreciated! FIXED!!!!
DannyK35
on Aug 26, 2008
Nov 7, 2008
by
Krieger
29
3,984
Mechanical Problems/Vehicle Issues and Fix-it Forum
$500 to replace o2 sensor???
jester458
on Jan 16, 2007
Aug 17, 2008
by
ugabuga
13
2,351
Mechanical Problems/Vehicle Issues and Fix-it Forum
WTB: Catalytic Converter
xRiCeBoYx
on Sep 18, 2007
Jan 29, 2008
by
ultimatedbz
5
1,800
Archive - Vehicles for Sale/Wanted
rattling noise from cat converter
dazzy999
on Jan 8, 2008
Jan 14, 2008
by
dazzy999
15
6,663
Bolt-on Engine Performance
CEL on, P0420 Code threw
diskreet
on Jan 4, 2007
Jan 8, 2007
by
diskreet
2
1,479
Mechanical Problems/Vehicle Issues and Fix-it Forum
P0420 CODE and O2 sensor conneced?
Boods
on Jul 19, 2006
Jul 19, 2006
by
streetglower
1
1,336
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
1,081
Mechanical Problems/Vehicle Issues and Fix-it Forum
P0420
gillio215
on Jun 4, 2006
Jun 4, 2006
by
gillio215
0
4,347
Mechanical Problems/Vehicle Issues and Fix-it Forum
OBD2 code: P0420 Catalyst System Efficiency Below Threshold
04_CIVIC_HFP
on Apr 30, 2006
May 15, 2006
by
04_CIVIC_HFP
12
3,274
Mechanical Problems/Vehicle Issues and Fix-it Forum
What does the Caspers O2 sim do?
Hawaiian_Built
on Sep 15, 2005
Sep 15, 2005
by
ctv
5
2,747
Bolt-on Engine Performance
three codes on 2001 civic ex
crizoss
on Sep 4, 2005
Sep 4, 2005
by
streetglower
2
2,588
Mechanical Problems/Vehicle Issues and Fix-it Forum
2003 EX CP - P0420 Catalyst System Efficiency Below Threshold (Bank 1)????????
puffdaddy411
on Aug 24, 2005
Sep 1, 2005
by
puffdaddy411
18
15,795
Mechanical Problems/Vehicle Issues and Fix-it Forum
01 Civic HX
01hx5
on Aug 2, 2005
Aug 3, 2005
by
robbclark1
1
711
General Automotive Discussion
Engine Light On with different Exhaust Tone
2000IndigoX
on Jun 13, 2004
Jun 18, 2004
by
2000IndigoX
6
1,156
Mechanical Problems/Vehicle Issues and Fix-it Forum
Tech question on 97 civic
pdxbiker
on Dec 19, 2002
Dec 20, 2002
by
666
1
602
General Honda Civic Forum Archive.
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