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Monte Carlo Forum - Monte Carlo Enthusiast Forums
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Threads Tagged with
po420
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Forum
6th Gen ('00-'05):
Can't Get Rid of P0420 Code....
(
1
2
)
michelob
on Sep 24, 2014
Feb 11, 2015
07:47 AM
by
michelob
19
13,566
Monte Carlo Repair Help
Downpipes, DTC Codes & Anti-Foulers
(
1
2
)
03SSLE
on Jul 12, 2011
Jan 7, 2012
07:03 AM
by
03SSLE
10
3,249
Headers/Intake/Exhaust
Check Engine P0420 Code
MonteMan92
on Jan 4, 2012
Jan 5, 2012
12:13 PM
by
MonteMan92
6
6,577
Monte Carlo Repair Help
EGR Monitor, need emissions test
Dans97
on Sep 13, 2011
Sep 13, 2011
09:17 PM
by
Dans97
0
1,110
Headers/Intake/Exhaust
PO420 With fairly new cat
Overdose666
on Aug 17, 2011
Aug 17, 2011
11:24 PM
by
red04montels
7
2,409
Headers/Intake/Exhaust
5th Gen, 97 LS 3.1L sluggish on gas. Has PO420 and others
shineman08
on Apr 22, 2011
Apr 26, 2011
08:18 AM
by
bigcat24
2
2,553
Monte Carlo Repair Help
'02 LS with P0420
KJRich
on Oct 29, 2010
Oct 31, 2010
08:39 PM
by
KJRich
3
1,325
Headers/Intake/Exhaust
CEL P0420 01 monte carlo 125k
Pjw350
on Mar 23, 2010
Mar 24, 2010
09:00 AM
by
ChibiBlackSheep
4
4,764
Headers/Intake/Exhaust
PO420 Code
(
1
2
3
)
Lumpo
on Jul 3, 2009
Jul 16, 2009
03:18 PM
by
AwesomeSS
22
5,459
Headers/Intake/Exhaust
PO420
montecarlomike81
on Apr 1, 2008
Apr 3, 2008
06:13 PM
by
montecarlomike81
6
2,145
Monte Carlo Repair Help
CEL P0420
CHOWEE21
on Mar 18, 2008
Mar 18, 2008
08:08 PM
by
dustybird3
3
1,716
Monte Carlo Repair Help
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