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How to bring down co emissions on gross polluter automobiles

Gross polluter vehicle

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  • yadayada
    yadayada Jul 17, 2010

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What's the definition of co ppm


"CO" is the abbreviation for Carbon Monoxide. It is an odorless, colorless, toxic gas that exists in automobile exhaust. "PPM" is the abbreviation for "parts per million". PPM is a standard used to measure gases, including CO. The EPA sets regulatory standards for how much CO may be emitted from automobiles. States have emissions testing programs to ensure these standards are met. If the CO in the exhaust of an automobile exceed the EPA's standards in PPM, then the vehicle will fail the emissions test and the vehicle must be serviced and made to meet the standard.

Nov 05, 2014 | 1991 Cadillac DeVille

1 Answer

2000 Toyota Echo coupe sure to pass smog all spec's and testing


You probably already learned that you should have taken it to a reputable repair shop. Whenever a vehicle wont pass emissions, don't try and fixing it yourself, take it to the dealer and let them use the skills and tools they paid thousands of dollars for just to help you get your car back on the road.

Aug 07, 2014 | 2000 Toyota ECHO

1 Answer

Automobile noise, emissions exceed the standard


May be due to the engine exhaust gas in the high temperature oxidation, resulting in leakage of exhaust system. use obd2 inspection of the exhaust system at the interface of it is gas corrosion, interface pad has not been washed. If the exhaust system leakage should be timely to the 4S shop for repair or replacement of leakage components, reduce the pollution emission of harmful substances in environment.

Dec 07, 2013 | Toyota Cars & Trucks

1 Answer

Where is the egr valve located on a 1990 mitsubishi 3.0L?


Notice in the emissions part of the service manual. That is has different versions of this truck Canada, 49 state and a 50 state. Not all of them have the egr valve. Some may not have this and in some areas this could cause the truck to fail "NO/PPM" (NOX) on the smog like in LA County. Causing the truck to be viewed as a gross polluter. This reading might be more then double the gross polluter limit allowed.

Feb 10, 2013 | 1990 Mitsubishi Mighty Max

1 Answer

Sometimes hard to start, then when driving the car will lurch and wants to die


its your catalytic converter (colloquially, "cat" or "catcon") is a vehicle emissions control device which converts toxic byproducts of combustion in the exhaust of an internal combustion engine to less toxic substances by way of catalysed chemical reactions. The specific reactions vary with the type of catalyst installed. Most present-day vehicles that run on gasoline are fitted with a "three way" converter, so named because it converts the three main pollutants in automobile exhaust: an oxidizing reaction converts carbon monoxide (CO) and unburned hydrocarbons (HC) to CO2 and water vapour, and a reduction reaction converts oxides of nitrogen (NOx) to produce CO2, nitrogen (N2), and water (H2O).[1] The first widespread introduction of catalytic converters was in the United States market, where 1975 model year gasoline-powered automobiles were so equipped to comply with tightening U.S. Environmental Protection Agency regulations on automobile exhaust emissions.[2][3][4][5] These were "two-way" converters which combined carbon monoxide (CO) and unburned hydrocarbons (HC) to produce carbon dioxide (CO2) and water (H2O). Two-way catalytic converters of this type are now considered obsolete, having been supplanted except on lean burn engines[citation needed] by "three-way" converters which also reduce oxides of nitrogen (NOx).[2]
Catalytic converters are still most commonly used in exhaust systems in automobiles, but are also used on generator sets, forklifts, mining equipment, trucks, buses, locomotives, motorcycles, airplanes and other engine-fitted devices. They are also used on some wood stoves to control emissions.[6] This is usually in response to government regulation, either through direct environmental regulation or through health and safety regulations.
Catalytic oxidization is also used, but for the purpose of safe, flameless generation of heat rather than destruction of pollutants, in catalytic heaters.

Oct 15, 2012 | 1995 Buick LeSabre

1 Answer

My 1991 dodge stealth rt. Emissions test failed gross polluter


You'll have to figureout if it is a fuel or ignition problem.Is the check enginelight on ?

Jun 30, 2012 | Dodge Stealth Cars & Trucks

1 Answer

The smog test read that the gross polluter emissions were high, how do i fix that?


first off you have to tell us what the emission readings of the gases were to help you out.otherwise icould tell you anything and it won`t help to fix the problem.

Sep 18, 2011 | Chevrolet Blazer Cars & Trucks

3 Answers

Where is the emissions vapor canister located and what do I look for on my 1999 gmc jimmy 4.3 vortec?


The need to control the emissions from automobiles gave rise to the computerization of the automobile. Hydrocarbons, carbon monoxide and oxides of nitrogen are created during the combustion process and are emitted into the atmosphere from the tail pipe. There are also hydrocarbons emitted as a result of vaporization of gasoline and from the crankcase of the automobile. The clean air act of 1977 set limits as to the amount of each of these pollutants that could be emitted from an automobile. The manufacturers answer was the addition of certain pollution control devices and the creation of a self adjusting engine. 1981 saw the first of these self adjusting engines. They were called feedback fuel control systems. An oxygen sensor was installed in the exhaust system and would measure the fuel content of the exhaust stream. It then would send a signal to a microprocessor, which would analyze the reading and operate a fuel mixture or air mixture device to create the proper air/fuel ratio. As computer systems progressed, they were able to adjust ignition spark timing as well as operate the other emission controls that were installed on the vehicle. The computer is also capable of monitoring and diagnosing itself. If a fault is seen, the computer will alert the vehicle operator by illuminating a malfunction indicator lamp. The computer will at the same time record the fault in it's memory, so that a technician can at a later date retrieve that fault in the form of a code which will help them determine the proper repair. Some of the more popular emission control devices installed on the automobile are: EGR VALVE, CATALYTIC CONVERTER, AIR PUMP, PCV VALVE, CHARCOAL CANISTER.



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Jun 04, 2011 | 1999 GMC Jimmy

2 Answers

What is the emission controlls evarorative system


Emission control systems have been incorporated into automobiles to prevent pollution by limiting the amount of partially burned and evaporated gases into the atmosphere. These systems have been efficient in reducing the pollution caused by automobiles to a large extent. Automobiles were first manufactured with exhaust emissions control systems in 1966. Since then technology has undergone several changes that has increased the number of cars which use this technology. The emission released is calculated by quantity released per distance traveled. The types of emissions are tailpipe emissions, life cycle emissions and evaporative fuel emissions.
Catalytic Converter
The catalytic converter was developed in the early 70's when severe air pollution was emanate, but wasn't made mandatory by the US government until 1976. The catalytic converter or "cat" for short is one of your vehicles main emission control devices. The name was derived from the operation the catalytic converter performs, it takes a catalyst and converts the unburned gases to burned gases, "catalytic converter".
EGR Valve
EGR valves are used is to lower KNOX (NO2) gases which occur when the combustion chamber when temperature reaches over 3,500 degrees Fahrenheit. KNOX gases have proven to cause brain damage and have been mandatory on most vehicles since 1976. An EGR (exhaust gas re-circulation) this valve controls exhaust gases to enter the intake manifold and flow into the combustion chamber at certain times in the operation of the vehicle. To test your EGR valve remove the vacuum line that is connected to the valve, apply vacuum using a vacuum pump to the valve while the engine is running. If the engine stalls the EGR system is working, if not, the EGR valve may have failed.
Tailpipe emissions are released as bi-products of spent fuel that is combusted inside the cylinders of the engine. These omitted gases consist of carbon monoxide, hydrocarbons, carbon dioxide and nitrogen oxides. To control tailpipe emissions measures have been taken to increasing engine efficiency. This efficiency involves technologies such as lightweight vehicle design, regenerative braking, decreased rolling resistance, increased ignition voltage, minimizing air resistance and improving power train efficiency.


Lifecycle emissions are products which are released during the manufacturing, maintenance and disposal of the vehicle. The products include volatile solvents such as auto paint and lubricants, manufacturing plant power waste, oil filter and oil changes, heavy metals, tires, landfills, etc. These kinds of emissions are responsible for creating urban smog which consists of heavy molecular gases which pollute our environment.

Temperature change can result in the evaporation of fuel in the tank because of the development of pressure, this is known as gas tank venting. Recently fuel systems have been equipped with a closed system called EVAP, this allows the vapor to be stored in a charcoal canister until it can condense into a liquid and then returned to the fuel tank.

Another emission control system known as the air injection reactor or AIR, oxygen is injected in the exhaust manifold. This system decreases the bi-products of incomplete fuel consumption.


If the emission control system malfunctions the "check engine" light will illuminate. Scan the PCM for trouble codes, repair the problem, then clear codes to re-test system. Most automobile's have an emission system information label under the hood, or consult a repair manual.

The emission system performs regular test while the car is in use called a "test cycle". Tailpipe emission are measured in parts per million or PPM. Presently, the limit for evaporated gases is two grams of HC per hour, which is about one liter per month. At first, the idle test, which was a two-speed test was conducted in the 1980s. Then it was substituted by the dynamometer test in the late 90's, in the accelerated simulated mode or ASM three gases are tested. Various states and countries have developed unique laws about pollution testing of vehicles.

Good luck, and remember rated this help.

Mar 16, 2010 | 2003 Chevrolet S-10

1 Answer

86 gmc saburban failed emissions


there isn't much a person can do at home when it comes to repairing a emissions failue there are HC failures where there is unburned fuel
There is CO which is incomplete combustion poosr compression, valve problems ect.
NOX Oxsides of nitrogen which is usually over heating engine or EGR
O2 (oxygen) leak in the exhaust
Oh yea evap emissions where the fuel vapors escape into the atmosphere through a .020" hole in the fuel vapor recovery system somwhere between the fuel ank and the engine compartment Oh god you need a smoke machine to find those.
Oh god I repair emission and its so damn hard fix one thing and another reading goes wackey
There is NO WAY without a 5 gas analyzer you can hit it Please trust me I know money is tight but take it to an emissions qualified shop and be done with it cheaper and less hassle, sorry just being honest really.Here in Seattle you will find nearly no old vehicles like yours due to emissions they cant be made to pass so off to the wrecking yard they go thats the goal of the emissions program get rid of the GROSS POLLUTERS and make people buy new cars. Thats our wonderful Goverment.
But in Japan you have to my law change our engine at 40,000 mi due to their emissions laws or junk the car.
give me your phone Number and I'll call you or heres my number 253-691-6206 and try to explain it
But if I provided any helpful advice please give me a good rating

www.aceautomotive1.com

Aug 17, 2008 | 1986 GMC C1500

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