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ericdab
Date registered: Dec 1899
Location:
Vehicle(s):
| NY state emissions inspection: FAILED
After finally getting around to it (six months overdue) I bit the bullet. Below are the results with the limits limits in ( ).
HC 1.92 gpm (.80 gpm)
CO 47.91 gpm (15 gpm)
NOx 8.14 gpm (2 gpm)
Does anyone know what these denote? I believe the last is the oxygen level. Also, what is the process for troubleshooting this gigantic headache? thanks for the help
Car less,
Eric
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Roch207
Expert
Date registered: Apr 2006
Location: Palmetto State
Vehicle(s): 2005 E320 CDI, 2010 Silverado 2500HD
Posts: 3749
| RE: NY state emissions inspection: FAILED
HC = Hydrocarbons
CO = Carbon Monoxide
NOX = Nitrogen Oxide
I believe they are measured in PPM = parts per million
Most states have a sliding scale basd on the age and then institute an exemtion if you document you spent over x number of dollars trying to repair the problem. Some states it is a pretty low $ amount.
Most of these issues are related to the Catalytic converter (or lack thereof) or other smog controls on the car. |
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ericdab
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: NY state emissions inspection: FAILED
Okay. Makes sense. For some reason the previous owner removed the catalyitc converter. If this is the case does it make sense to install the converter (if I have it) or purchase a new one? |
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DUTCH
Administrator Doppelgänger
Date registered: Apr 2006
Location: US, GA, Atlanta
Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter
Posts: 9963
| RE: NY state emissions inspection: FAILED
ericdab - 6/20/2006 4:08 PM
Okay. Makes sense. For some reason the previous owner removed the catalyitc converter. If this is the case does it make sense to install the converter (if I have it) or purchase a new one?
Removal of the cat enables it to breath better and produces a bit more power. You might want to take it to a friendly MB mechanic and get them to set the CO level where it's supposed to be. Done with a simple set screw on the Bosch fuel distributor. Also, check the timing to be sure it's where it's supposed to be.
I used to be able to pass the Georgia annual emissions inspection with these two numbers being set correctly. If those two numbers are right and you still fail the inspection, there are bigger problems in your engine.
It looks like it's burning too rich. |
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GwagenLover
Extreme Veteran
Date registered: Apr 2006
Location: Winston Salem, NC USA 27104
Vehicle(s): 2016 G550 & 2016 GLE350
Posts: 473
| RE: NY state emissions inspection: FAILED
Dutch,
I seem to remember that someone said there was something they added to the fuel before an inspection to reduce these levels.
Do you remember what it was? 
Edited by GwagenLover 6/20/2006 4:54 PM
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DUTCH
Administrator Doppelgänger
Date registered: Apr 2006
Location: US, GA, Atlanta
Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter
Posts: 9963
| RE: NY state emissions inspection: FAILED
GwagenLover - 6/20/2006 4:54 PM
Dutch,
I seem to remember that someone said there was something they added to the fuel before an inspection to reduce these levels.
Do you remember what it was? :banghead:
Acetone, if I remember correctly; but, if the timing and mixture (CO) are not set properly to start with, they would just be "Whistling Dixie". |
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Braingears
Expert
Date registered: Apr 2006
Location: St Petersburg, FL
Vehicle(s): G320 & ML320
Posts: 1450
| Re: NY state emissions inspection: FAILED
I have seen a bottle in the store that guarantee to pass inspections... But have no idea what is in it. In Florida, we no longer have the inspections. So I do not worry about it...
When we did have inspections, all of my vehicles were diesel, so I was exempt anyways. |
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ewalberg
Expert
Date registered: Apr 2006
Location: Past: San Francisco. Present: Germany
Vehicle(s): 2000 g500
Posts: 1887
| RE: NY state emissions inspection: FAILED
one thing i've heard is to change spark plugs especially if they're old and due for change anyway. They are how the burn process begins in the first place. |
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gregschultz
Date registered: Jun 2006
Location: Roswell, GA
Vehicle(s): '86 300GD; 08 ML 320 cdi; 05 E320cdi
| RE: NY state emissions inspection: FAILED
You might do a careful read of NY's emissions regulations. I just purchased an '86 280GE and, in Georgia (actually in the Atlanta Metro area) once the clean air folks determined that my G was Federalized properly they gave me a letter, which permits me to have the G's emissions not exceed the levels required by the EPA when it was imported (in '86 or '87). The EPA's emissions standards in the 80s was pretty lax by today's standards. I'm pretty sure that our regs are based on a model that the EPA "suggests" to states - certainly ignored in California - so it's it may be similar in other states, including yours. My catalytic converters were also removed; no one particularly noticed and it didn't make a difference in my emissions tests. So, it passed. |
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AlanMcR
Expert
Date registered: Apr 2006
Location: US, CA, Los Altos
Vehicle(s): G300DT E300DT 230SL
Posts: 3500
| CA regs.
gregschultz - 6/21/2006 8:07 PM
You might do a careful read of NY's emissions regulations. I just purchased an '86 280GE and, in Georgia (actually in the Atlanta Metro area) once the clean air folks determined that my G was Federalized properly they gave me a letter, which permits me to have the G's emissions not exceed the levels required by the EPA when it was imported (in '86 or '87). The EPA's emissions standards in the 80s was pretty lax by today's standards. I'm pretty sure that our regs are based on a model that the EPA "suggests" to states - certainly ignored in California - so it's it may be similar in other states, including yours. My catalytic converters were also removed; no one particularly noticed and it didn't make a difference in my emissions tests. So, it passed.
To defend California a bit. The CA regs only require the vehicle to meet the federal emissions requirements applicable at manufacture date. That is the whole point of Federalization. CA does a better job of actually testing that the emissions criteria are met. |
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Ed Mclass
Expert
Date registered: Apr 2006
Location: Nashville, Tennessee
Vehicle(s): 1958 180a, 2010 GLK, 2000 G 500, 2005 SLK 350
Posts: 1215
| Re: NY state emissions inspection: FAILED
When I took my '86 280 GE through emissions I passed, but they made me put the catalytic converter back on and install a restrictor plate in the filler neck. My defense that the truck "passed" did no good! I see now that Pefromance Products has a restricitor plate available that might have worked, but at the time I bought one from Europa. |
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fernweh
Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
| RE: NY state emissions inspection: FAILED
ewalberg - 6/20/2006 4:06 PM
one thing i've heard is to change spark plugs especially if they're old and due for change anyway. They are how the burn process begins in the first place.
Absolutely right, you have to start with a very fine tune up - as Dutch says, perfect ignition timing, replace the spark plugs - adjust the spark gap on all to specs, check the distributor finger & cap & spark plug wires, adjust valve clearance, adjust mixture with CO tester - hydrocarbon level is un-burned fuel in the exhaust, it will drop with a good running engine/perfect tune up.
I have removed my original cat to get rid of the heat, but will install two aftermarket ones ( cost ~$400). The cat will only work/last if the car has an emission control system with an oxygen sensor installed, otherwise it burns out/fails very fast.
Karl |
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roughneck
Expert
Date registered: Apr 2006
Location: UK, Germany & USA
Vehicle(s): 270 cdi.300 GD 300 GE.lwb 300 GE.swb. Disco 2
Posts: 4398
| RE: NY state emissions inspection: FAILED
In my opinion if the vehicle is given a thoughro service, air filter change spark plugs leads timing fuel air mixture oil change etc etc. then add about 3% Isoproponal Alchol (IPA) to the fuel you should meet those standards, the only problem is you might like the increase in power with IPA in the fuel, and not want to revert. |
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Braingears
Expert
Date registered: Apr 2006
Location: St Petersburg, FL
Vehicle(s): G320 & ML320
Posts: 1450
| Re: NY state emissions inspection: FAILED
Does the grade of fuel matter for these type of tests? |
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termite
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: NY state emissions inspection: FAILED
is the inspection station putting it on the dyno? if so, be careful that you don't waste the transfer case. mine w/o the cat, passed ny inspection on the second attempt and not by much. new plugs, clean filter and 93 octane did it for me... |
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