There are numerous emissions control sites on the World Wide Web. On these emissions control sites you will find information on the different emissions control systems designed for automobiles.

You may also find information on industrial emissions control applications on the emissions control sites on the Internet.
If you are in search of information related to the emissions control device or devices for automobiles then you will want to search for emissions control sites on the Internet. Whether the automobile application you need information for is on an import or domestic vehicle, there are emissions control sites on the Internet with information about the emissions control device on every automobile.

Some automobiles use emissions control systems that are controlled by the position of the throttle on a throttle body equipped vehicle. The emissions control systems on other cars are “slaved” to the throttle by a valve installed on the canister that is open and closed by vacuum pressure supplied by the throttle body assembly. Another system designed to run the emissions control devices on cars are an ECM activated solenoid valve on the emissions control canister.

No matter which type of emissions control device you wish to gather information on, you will find emissions control sites on the Internet to help you in your search for knowledge. Emissions control sites on the Internet are designed to be helpful for the novice and expert, consumer and professional. It does not make a difference if you are a weekend warrior consumer whom desires to repair the emissions control system on your earlier model import or if you are an automotive repair professional repairing the emissions control system of a customer.

On the Internet, you will find emissions control sites designed to assist you with the specific repair needed on your specific automobile.

Some of the emissions control sites found on the World Wide Web have been designed and written by automotive professionals, whereas others have been designed and written by consumers or as they are often referred to as, weekend warriors. Sometimes weekend warriors know as much and occasionally more than an automotive professional about the application that you are in search of information on.

Other times with extremely proprietary applications, only an educated, trained and experienced automotive professional will be able to supply the information needed to aid in the repair of the emissions control system on your car.

In summary, there are emissions control sites on the Internet with information about the emissions control system on every make and model of vehicle that have been designed to be helpful to both the consumer and professional. These emissions control sites have been designed and written by both novice consumers and automotive professionals from around the globe.

If information on an emissions control device for an automotive application is what you are looking for, look no further than any of the numerous emissions control sites on the World Wide Web!

The control of exhaust emissions is a multi-system task. The multiple systems involved are the oxygen sensors, the EGR (Exhaust Gas Return) valve, the catalytic converter and the muffler/tailpipe.

The oxygen sensors help in the control of exhaust emissions by sensing if there is either too much oxygen or too much combustible fuel being released from the engine in the exhaust gas. Depending on whether the engine is burning too rich or too lean the cars computer will adjust the air/fuel mixture allowed at the intake system.

The EGR valve aids in the control of exhaust emissions by measuring the amount of combustible vapors being released from the cylinders at the point of the exhaust manifold after the combustion process but before the exhaust gasses have reached the main line of the exhaust system.

It is determined there is a high enough level of combustible vapors contained within the exhaust gasses to support combustion, the EGR valve will return a portion of the exhaust gasses to the cylinders for combustion through the intake system.

The catalytic converters role in the control of exhaust emissions is to catalyze the hydrocarbons and carbon monoxide in the exhaust gasses. The catalytic converter is the box with the appearance of a “muffler” installed in the exhaust line after the exhaust manifolds, EGR valve and oxygen sensors, but before the muffler/tailpipe.

The catalytic converter consists of a chamber containing platinum or palladium pellets or honeycomb design. When the exhaust gasses pass through the catalytic converter and across the chamber with platinum or palladium pellets or a honeycomb design the hydrocarbons and carbon monoxide are catalyzed into carbon dioxide and H2O.

A muffler is usually located under the car near the bumper at the rear; semi or diesel trucks regularly use a vertically mounted pipe system on the cab.

A muffler consists of a box usually constructed with rows of baffles designed to evaporate the H2O catalyzed in the catalytic converter and one or more tailpipes used to reduce noise pollution.

The exhaust system of an automobile is the last system in the defense against harmful emissions and pollution of the Earth’s atmosphere. The exhaust system does have multiple tasks or more specifically multiple smaller systems that together work for the control of exhaust emissions.

It is very important to have a properly functioning exhaust system if you wish to help limit, reduce or even eliminate the pollution of the Earth’s atmosphere and stop global warming. If your exhaust system on your car is not functioning properly, you will be contributing to the destruction of Mother Earth.