Question about 2000 Saturn Ls 4dr Sedan

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Hc ppm too high no ppm too high

Failed emissions

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5 Suggested Answers

  • 1 Answer

SOURCE: wont pass emission ''hc to high" !

1993 DODGE CARAVAN 3.0 HCPPM LIMIT 144 READING 172 NO PPM LIMIT 965 READING 1024

Posted on Feb 21, 2009

ddegroote
  • 35 Answers

SOURCE: saturn sl2 emissin problem

If the SES light is on, take a paper clip bend it in a u-shape and jump the scanner input positions A B. This should flash the ses in sequesces to give you the trouble code, Please see the following link. http://www.troublecodes.net/GM/ Refer to the code to see what the issue may be. SES lit means that there is a emmissions related issue. Refer to the other links for additonal information on O2 sensor resistance, and the egr valve solinoid. Check the EGR is relitive easy for operation. Remove the vaccum hose and place a hose of similar suckon the hose to pull vaccum if the diafram underneith retracts, hold the vaccum by plugging off the tube with your touge if the diafram retracts, will not hold the vaccum, it is bad. The solinoid should read 40-60 ohms if good. http://www.saturnfans.com/forums/index.php http://www.aldlcable.com/sc/pages.asp?pageid=21
http://www.saturnfans.com/forums/showthread.php?t=37884

Posted on Jun 01, 2009

  • 318 Answers

SOURCE: Toyota Camry - 1998 3.0 L V6 = Failed emissions -

Burning oil...Engine miss. lazy o2 sensor.. dirty maf sensor. check the data on a scanner and this will tell what is amiss.

Posted on Jul 13, 2009

  • 12 Answers

SOURCE: My 1993 Saturn SL2 just failed the Smog Check

change your O2 sensor.

Posted on Jul 23, 2009

morse008
  • 1111 Answers

SOURCE: FAILED EMISSIONS

possible but could be head gasket or valves , or worn rings and is by passing the pistons going straight out the end ...or maby settings are wrong ? try carb cleaner and inspect visually air-filter etc.

Posted on Aug 26, 2009

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1 Answer

Failed hc ppm


Use Google & study Vehicle Exhaust Emission
You'll be there for weeks,if you even understand it all
Could type in: High HC Exhaust Emissions or vehicle
hydro carbon problems
When a vehicle gets that old your close to mechanical
issues that aren't worth fixing

Jul 18, 2013 | 1993 Nissan NX

2 Answers

1995 Honda Civc failed Emmisions test


Emission test by codes reader? or smog? Any codes?

May 22, 2017 | 1998 Honda Civic

2 Answers

Emission test failed HC (PPM)


i can be, only 2 things, or both.
1: engine running way too rich.
2: dead cat.
(both happens, too)
replace the cat, might be cheaper that full engine diagnosis and repair.
in a real shop we test the cat. using up and down stream tests.
with the 5 gas analyser.
but the truth is a new CAT can hide a very filthy running motor.

Mar 12, 2013 | 1995 Geo Prizm

1 Answer

Fail smog test


fist i would like you to post the year make and model of the truck along with the HC ppms and NOX ppm it would be very helpful but high hc and nox can be attributed to a faulty EGR system nox is produced when the combustion chamber temperature gets too high so a small amount of exhaust is cycled back into the air stream to help cool them there are other causes but without looking at the levels its much harder to say

Dec 06, 2012 | Cars & Trucks

2 Answers

My 1997 Honda Civic failed it's Emissions Test. See below the ASM Emission Test Results. What do you suggest I do to get the car to pass the smog test? ASM Emission Test Results: 15mph - RPM = 1587...


Jose, I don't know if this will give you the answer you are looking for because there are many things to consider here. The exhaust gas recirculation valve (EGR) is one of the main things involved in reducing NO emissions. This valve is controled by the power control module. (PCM) This is your vehicles computer. The PCM monitors the vehicles speed and will command the EGR to open when the vehicle attains a certain speed, which is why the ASM test being done is recorded at two different speeds. At 25 MPH your vehicle failed the hydrocarbon (HC) emissions limit and this could be for a number of reasons. When is the last time you car was tuned up? Old spark plugs, wires, clogged air filters, oxygen sensors, leaking injectors (personal experience) or the PCV valve could be contributing to the results of the test. I guess that the easiest way to go is to tune up the engine replacing the spark plugs, wires, air filter and the PCV valve and don't forget to have the oil changed at the same time. Only then should have the vehicle retested and see what the results are. Should it fail again you may have to consider having the EGR or the catalytic converter replaced depending on what portion of the test fails. If the NO fails I would consider the EGR. If the HC fails then I would consider the catalytic converter. Good luck with this.

Apr 05, 2011 | 1997 Honda Civic

1 Answer

Failed smog


means that the hc,co2,nox, emissions are too high, you will need the numbers in ppm on the read out to begin diagnossis

May 08, 2010 | 1995 Oldsmobile Aurora

1 Answer

FAILED EMISSIONS


possible but could be head gasket or valves , or worn rings and is by passing the pistons going straight out the end ...or maby settings are wrong ? try carb cleaner and inspect visually air-filter etc.

Aug 26, 2009 | 1986 Ford Mustang

1 Answer

Toyota Camry - 1998 3.0 L V6 = Failed emissions - High HC ppm at 40KM/h. 105 reading (limit is 57) What would be some of the causes for such a high reading?


Burning oil...Engine miss. lazy o2 sensor.. dirty maf sensor. check the data on a scanner and this will tell what is amiss.

Jul 12, 2009 | 1998 Toyota Camry

1 Answer

1994 Mazda Protege 1.8 SOHC failed emissions HELP!


have your EGR system checked . sounds to me like its not working or clogged

May 03, 2009 | 1994 Mazda Protege

3 Answers

ASM 2525 NO ppm TAILPIPE EMISSIONS failure


have you had the the engine codes pulled and reset?
and if so what are your engine codes?
i dont know of any car that will pass emissions test with the engine light on.
we cure your trouble that caused your engine light to come on and you will pass your test.
later
paul

Nov 24, 2008 | 2002 Toyota Sienna

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