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CorvetteForum - Chevrolet Corvette Forum Discussion
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Threads Tagged with
nox
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Last Post
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Forum
NOX too high on smog test?
Kale
on Dec 6, 2001
Oct 25, 2023
01:37 AM
by
Ricks94vette
11
1,927
C4 Tech/Performance
Failed Smog
DEJ08
on Jan 5, 2012
Jan 9, 2012
05:20 PM
by
Will's'74VetteL-82
7
7,633
C4 Tech/Performance
Emission Control System for the LT1
c92vette
on Oct 11, 2011
Oct 11, 2011
10:24 AM
by
1963SS
2
3,055
C4 Tech/Performance
Failed Emmissions test ?
daddysvet92
on May 15, 2011
May 21, 2011
11:48 PM
by
daddysvet92
11
1,906
C4 Tech/Performance
Failed Emmissions Test?
daddysvet92
on May 15, 2011
May 15, 2011
01:13 PM
by
mike100
1
829
C4 Tech/Performance
My ZR-1 failed smog
Bowtiefan
on Dec 28, 2010
Jan 11, 2011
03:13 PM
by
Bowtiefan
13
1,624
C4 ZR-1 Discussion
Smog Advice High NOX - Opinions Wanted
(
1
2
)
gambler669
on Dec 23, 2010
Dec 26, 2010
01:28 AM
by
PLRX
30
2,830
C4 Tech/Performance
FAILED CA. smog test. Suggestions on remedy?
(
1
2
3
...
Last Page
)
CorvetteMike2024
on Nov 22, 2010
Dec 18, 2010
01:52 PM
by
jeffp1167
138
10,509
C4 Tech/Performance
high nox on smog test
bobkart
on Aug 5, 2010
Aug 6, 2010
01:12 AM
by
BuzzinHornets
3
1,169
C4 Tech/Performance
VA emissions
(
1
2
)
Rkreigh
on Jun 16, 2010
Jul 27, 2010
01:05 AM
by
ßill
20
2,160
C4 ZR-1 Discussion
CA SMOG-Pass
PLRX
on Jun 1, 2010
Jun 7, 2010
01:01 AM
by
PLRX
18
1,535
C4 General Discussion
Houston guys--passing emmissions test--failed NOX
Jack Daniels
on Oct 2, 2009
Oct 2, 2009
07:23 PM
by
Jack Daniels
0
379
Southwest
1985 with high NOX
jaysteele
on Aug 16, 2009
Aug 17, 2009
12:25 PM
by
jaysteele
2
723
C4 Tech/Performance
So My car failed Emissions...
(
1
2
)
RandyJ75
on May 14, 2009
May 16, 2009
08:05 AM
by
ddahlgren
20
2,086
C4 Tech/Performance
Failed emissions.... Cats?
(
1
2
3
)
Umrswimr
on Mar 29, 2008
Apr 1, 2008
07:53 PM
by
SunCr
45
2,766
C4 General Discussion
Best way to lower nox emissions
95Torch
on Feb 11, 2008
Feb 13, 2008
08:42 PM
by
steve haverl
11
2,704
C4 General Discussion
Understanding the 3 cat L98 system and emissions
GREGGPENN
on Oct 30, 2007
Nov 1, 2007
10:55 AM
by
GREGGPENN
17
1,322
C4 Tech/Performance
fuel filter clogged
plaidside
on Aug 11, 2007
Aug 12, 2007
07:40 PM
by
mechron
4
703
C1 & C2 Corvettes
ok...i failed emissions..oxides of nitrogen failure
(
1
2
3
)
ittybittyfds
on Feb 26, 2007
Jul 14, 2007
07:32 PM
by
qwiketz
53
6,788
C4 Tech/Performance
Just failed emissions, NOx was way high and no HC.
1stvette94
on Dec 14, 2006
Feb 10, 2007
02:30 PM
by
Jim McCombe
18
5,256
C4 Tech/Performance
OBD2 Code P2001
kelp
on Aug 31, 2006
Sep 1, 2006
09:49 PM
by
kelp
7
1,704
C6 Tech/Performance
High NOx when smogging
qwiketz
on Aug 8, 2006
Aug 9, 2006
07:03 PM
by
qwiketz
2
709
C4 Tech/Performance
failed emissions again... suggestions?
(
1
2
3
)
Thrak
on Jul 29, 2006
Aug 5, 2006
07:54 PM
by
toptechx6
51
2,242
C4 Tech/Performance
Anyone from a tough Smog State...?
(
1
2
)
ETM
on Jul 20, 2006
Jul 31, 2006
04:31 AM
by
Kalway
37
1,171
C3 Tech/Performance
Failed emissions for NOX, rough idle....?
XtremeVette
on Jun 27, 2006
Jun 28, 2006
10:56 AM
by
Don in Vermont
12
1,409
C4 Tech/Performance
HELP! failed emissions (Nox reading)
WEH 2000C5
on Jun 8, 2006
Jun 8, 2006
08:07 PM
by
JoeF95
12
1,310
C4 Tech/Performance
HELP 91 ZR1 NOx too high
vetteboy78
on May 24, 2006
May 25, 2006
11:45 AM
by
vettl83
3
532
C4 ZR-1 Discussion
Failed Smog! Old cats, maybe? Any suggestions?
jcsr72
on Nov 8, 2005
Nov 10, 2005
11:13 AM
by
jcsr72
19
675
C4 Tech/Performance
Can a bad knock sensor cause poor emissions?
Stngray
on Oct 27, 2005
Oct 28, 2005
12:37 PM
by
Stngray
3
574
C4 Tech/Performance
Failed emissions, high NOx ('89 L98) - PLEASE HELP!
TheCorvetteKid
on Sep 11, 2005
Sep 11, 2005
09:33 PM
by
Aggravated4life
6
1,836
C4 Tech/Performance
Failed emissions / high Nox
SS409 425HP
on Aug 17, 2005
Aug 19, 2005
12:32 AM
by
SunCr
8
957
C4 Tech/Performance
Failed Inspection
delpa
on Mar 3, 2004
Mar 3, 2004
11:52 PM
by
zwede
4
797
C3 Tech/Performance
failed smog - high HC's - help please
martinsw
on Feb 10, 2004
Feb 12, 2004
03:24 PM
by
The Dude
9
2,812
C3 Tech/Performance
smog tests-What's the best way to drop nox?
GTR1999
on Jan 13, 2004
Jan 13, 2004
07:36 PM
by
zwede
11
2,509
C3 Tech/Performance
What did I do wrong?
(
1
2
)
oprahrider
on Jan 4, 2004
Jan 9, 2004
07:37 PM
by
jimgessner
30
1,981
C1 & C2 Corvettes
Emissions Test Failure - High CO
JackHutchison
on Dec 2, 2003
Dec 2, 2003
08:43 PM
by
AGENT 86
1
1,133
C4 Tech/Performance
How can I lower my NOx emissions?
DuceXcreW
on Oct 18, 2003
Oct 19, 2003
10:01 AM
by
DuceXcreW
8
1,310
C5 Tech
Would someone mind posting a few pics for me
69 N.O.X. RATT
on Sep 20, 2003
Sep 22, 2003
06:12 PM
by
69 N.O.X. RATT
19
705
C3 Tech/Performance
Failed emissions. Any ideas?
(
1
2
)
92TripleBlack
on Aug 29, 2003
Sep 7, 2003
09:55 PM
by
GS 163
24
1,443
C4 Tech/Performance
Octane boosters....any good?
vetteguy75
on Jun 24, 2003
Jun 26, 2003
02:22 PM
by
garagedweller2
17
970
C3 Tech/Performance
NOX high again...
Kale
on May 17, 2003
May 18, 2003
07:06 PM
by
CorvetteZ51Racer
5
637
C4 Tech/Performance
How much can you mill heads and not put things out of whack / compression increase ?
69 N.O.X. RATT
on Dec 9, 2002
Dec 10, 2002
08:11 PM
by
69 N.O.X. RATT
5
13,111
Engine Mods
Finally Passed Dyno Emissions Test..... Helpful Hints inside....
Marcho Polo
on Oct 3, 2002
Oct 5, 2002
01:03 AM
by
1SLO POK
11
2,076
C4 Tech/Performance
O2 sensor and high NOx reading
twotone82
on Oct 3, 2002
Oct 4, 2002
09:32 AM
by
BeaterShark
6
2,364
C3 Tech/Performance
Failed emissions because of high nox reading...whats the cause?
Vette9d1
on Jun 8, 2002
Jun 8, 2002
08:20 PM
by
PeteL
6
586
C4 Tech/Performance
how can i tell if my fuel pressure regulator is bad??
CDaniel525
on Mar 27, 2002
Mar 29, 2002
12:54 AM
by
69 N.O.X. RATT
5
1,635
Engine Mods
81 failed Emissions test
(
1
2
3
)
ksems
on Mar 14, 2002
Mar 17, 2002
01:38 PM
by
ksems
41
3,543
C3 Tech/Performance
Octane Booster Suggestions.
SprintCarDriver
on Feb 28, 2002
Mar 1, 2002
11:50 AM
by
SprintCarDriver
11
793
C3 Tech/Performance
Just failed IM240
(
1
2
)
91Yellow1
on Jan 28, 2002
Jan 29, 2002
07:10 PM
by
CFI-EFI
23
1,298
C4 Tech/Performance
NOX on L98
Finland
on Sep 18, 2001
Sep 29, 2001
02:24 PM
by
Finland
6
585
C4 Tech/Performance
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