Threads Tagged with nox

Honda CRX / EF Civic (1988 - 1991)

1987, 89, accord, carbuated, carburated, egr, hc, high, honda, level, nox, ppm, reaching, thermovalve, vacuum, valve

HELP!! - 87' Accord - NOx too high but passes HC and CO fine - EGR valve tested

Ardfarkle on May 6, 2004

Jun 15, 2024 11:11 AM
by KentK

11

3,421

Classic Hondas

02, aftermarket, civic, crx, due, fix, header, high, honda, integra, nox, sensor, si, smog, test89, turbo

High NOX! New CAT, New O2 Sensor...Still no pass

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1 2)

IIDIEIV619 on Oct 28, 2008

Jun 19, 2014 10:28 PM
by acmoc

42

28,108

1420, 2002, adsorptive, catalyst, catalytic, civic, code, converter, efficiency, honda, hybrid, nox, p0134, p1420, system, threshold

OBD2 Codes P1420 and P0134

DCWOOD on Aug 2, 2010

Nov 7, 2013 11:48 AM
by Civic1969

4

9,981

Honda Civic (2001 - 2005)

1992, 92, 93, 95, accord, emission, emissions, fail, failed, high, honda, hydrocarbons, lowering, nox, test

1992 Accord Failed Emissions High NOX

Happs on Jul 30, 2011

Jul 7, 2013 12:19 AM
by MAD_MIKE

17

19,986

017, 1990, 1997, 86, air, carbs, civic, emissions, fail, fix, gas, high, honda, nox, tank

Failed for NOx again 86 civic carb

letank on Feb 3, 2011

Nov 8, 2012 01:04 PM
by letank

16

4,523

Classic Hondas

15, 15mph, 25, acura, car, fail, failed, high, integra, issues, mph, nox, passed, prelude, smog

Smog Issue. Failed NOx 15 mph..

tegradb7 on Apr 5, 2012

Apr 5, 2012 06:44 PM
by tegradb7

0

1,362

2006, 94, accord, california, capacity, emission, fail, h22, h22a, high, honda, laws, nox, oil, smog

h22 accord failed smog

90cb7lx on Mar 28, 2012

Mar 29, 2012 07:54 PM
by MAD_MIKE

6

2,435

15, 1994, 88, acura, check, emissions, failed, high, honda, lower, nox, nsx, ppm, prelude, reading, smog, test

Failed Smog Test. NoX Too High.

Cjlarson14 on Feb 4, 2012

Mar 19, 2012 05:22 AM
by Imp-tuner

7

6,426

98, california, civic, cracked, emissions, exhaust, fixed, high, honda, hondatech, manifold, misfire, nox, partial, throttle

Misfire, high NOx

Ash J. Williams on Mar 10, 2012

Mar 17, 2012 10:11 AM
by Ash J. Williams

8

2,919

91, 92, 93, b18b1, civic, failing, gtp, honda, nox, o2, octane, sensor, smog, swap, vx

93 VX B18B1 Swap - Failed NOx @ Referee

WallaceB18 on Feb 21, 2012

Feb 26, 2012 10:16 PM
by WallaceB18

11

2,824

cat, civic, code, emissions, emissons, failed, flow, hc, high, honda, misfire, nox, pass, vx, wont

'92 Civic VX won't pass emissions - high HC reading and NOx

PePe240sx on Feb 7, 2012

Feb 15, 2012 12:25 PM
by 93delsold16z6

3

3,960

1996, 87, 94, 96, accord, adding, have, honda, it, knock, location, nox, problems, sensor, wagon

does 96 accord lx have a knock sensor

tomtom211 on Sep 20, 2004

Feb 9, 2012 03:36 PM
by holmesnmanny

12

8,306

1991, acura, b18a1, egr, egrv, high, integra, manual, nox, nsx, ppm, size, stock, valve, valves

Stock b18a1 egr?

Da_1991 on Feb 6, 2012

Feb 7, 2012 04:56 PM
by b20bFourDoorCivicLX

5

1,863

1992, 99, accord, acura, airmass, civic, fail, header, honda, illegal, lean, legal, nox, running, smog, tl, tsa

Failed CA smog NOx too high..

reyrey2006 on Jan 14, 2012

Feb 4, 2012 12:11 PM
by Cjlarson14

14

15,956

93, be, brakes, civic, co2, del, emissions, fix, honda, inspection, nox, pass, reading, rear, sol

My 1993 Civic didn't pass inspection. Nox reading.

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1 2)

Shade93 on Dec 5, 2011

Dec 13, 2011 09:09 PM
by Shade93

43

12,758

15mph, california, do, failed, failure, fuel, honda, nox, pass, premium, ruckus, running, smog, test, testno

failed CA smg test, Nox too high!!! need help

jdmcivic2fast on Oct 18, 2011

Nov 14, 2011 06:52 PM
by jdmcivic2fast

20

4,731

92, 95, accord, civic, common, didnt, fail, heet, high, honda, iso, nox, noxreductioncarsbtdchondacivic, past, resin, siterisingsun4x4cluborg, smog, test

fail ca smog, nox too high, need help

jdmcivic2fast on Oct 18, 2011

Oct 21, 2011 06:41 PM
by Detman1oh1

20

12,130

95, barely, ca, car, fail, faild, failed, guarantee, hc, honda, integra, nox, nox1991, pass, smog, tech

CA Smog Failed HC & NOx + Correction Made To Pass

oaktownmojo on Sep 8, 2011

Sep 8, 2011 10:01 PM
by oaktownmojo

0

1,325

93, civic, d16z6, dx, failed, gross, hc, high, honda, hondatech, jdm, nox, polluter, poluter, yahoo

My Del Sol is a GROSS POLLUTER!! Need Help!!

LudeNEzz on Nov 12, 2010

Aug 21, 2011 10:38 PM
by fleabag

9

2,628

1987, 1995, accord, cat, due, fail, guaranteed, high, honda, level, map, nox, pass, sensor, vtec

High NOx - opinions needed

MechEng on Jul 9, 2011

Jul 14, 2011 06:23 PM
by MechEng

20

8,991

15, 93, 94, civic, hc, hcs, high, honda, hydrocarbon, integra, levels, mph, nox, reasons, tech

Ref visit - high HC and high NOx

darkstormcr on Jun 15, 2011

Jun 15, 2011 05:40 PM
by darkstormcr

0

1,169

WTB eg hatch rear springs, knock sensor and TPS

Raven2201 on Jun 5, 2011

Jun 8, 2011 08:48 AM
by ReDemoN

3

445

Want to Buy

15mph, 180, advance, ams, cam, check, emission, engine, fail, light, nox, retarded, test, timing, timings

Timing is 38 advanced?? Cam timing is good. Why would it be so far off?

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SW20FL on Feb 11, 2011

May 2, 2011 10:22 PM
by DCFIVER

29

12,081

2525, address, atlanta, carbon, civic, dioxide, ef, emissions, failed, georgia, high, honda, location, nox, odyssey, tech, test

Emissions Failure, not sure..Need help/tags lol

madking411 on Apr 27, 2011

Apr 29, 2011 08:33 PM
by madking411

5

1,579

ca, cheating, civic, del, emission, emissions, honda, klze, nox, pass, passin, rich, running, sol, swaps, test, valve

Are there any ways of passing emissions... or at least lowering HCs?

Juans_MX3 on Apr 7, 2011

Apr 10, 2011 06:39 AM
by ddd4114

14

2,412

1994, acura, car, cheating, emissions, emisson, fail, heet, honda, integra, iso, lower, nox, present, smog, test, wa, without

help FAIL emission test !!!!!!

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DB1_559 on Jul 10, 2007

Apr 1, 2011 01:48 PM
by Local

27

6,010

25mph, bisi, ca, cams, cb7, fail, hc, high, honda, hondatech, noise, nox, prelude, seafoam, smog, train, valve

Another CA failed smog

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1 2)

laloquera916 on Oct 4, 2010

Mar 26, 2011 03:25 PM
by poohbear hatch

39

7,642

buildup, carbon, cracked, detect, emission, emissions, exhaust, fail, failing, gramsmile, hc, intake, manifold, mpg, nox, passing, runner, test, vehicle

Failing emissions for NOx

earthquake on Mar 4, 2011

Mar 17, 2011 03:40 PM
by earthquake

15

15,243

96, cat, correctly, hc, high, integra, nox, o2, pass, put, ready, sensor, sensors, smog, test

Failed smog test - High HC & NOx at 15mph but not 25mph

PunkRudeBoy on Nov 13, 2010

Feb 22, 2011 07:44 AM
by Former User

15

34,057