Welcome to Emissions Control Guide
Emissions Control Unit Lincoln Article
. For a permanent link to this article, or to bookmark it for further reading, click here.
What Is An Evaporative Emissions Control System
from:The evaporative emissions control system for an automobile is attached to the fuel tank. Usually hidden inside one of the rear wheel wells or in a cavity of the body design near the fuel tank the evaporative emissions control system plays an important role in emissions control.
Over time, as fuel sits in the fuel tank of your car the process of evaporation loses combustible gas vapors from the liquid fuel. Without a proper system to trap and store these gas vapors, they are emitted into the atmosphere where they are considered a dangerous pollutant. The evaporative emissions control system is the system that traps and stores these combustible gas vapors to be reintroduced through the intake system later.
The evaporative emissions control system consists of six basic parts. The six basic parts that I am referring to are intake system, fuel tank, vapor canister, vapor restriction, purge control valve and the pressure/vacuum relief filler cap.
Here is a simple overview of the evaporative emissions control system of your car: As the liquid fuel in the fuel tank evaporates, it is restricted to the fuel tank until the fuel tank has reached a predetermined internal pressure. When the predetermined internal pressure is reached or exceeded the vapor restriction will then allow the combustible gas vapor to pass through a line attached from the fuel tank to the vapor canister. There are three types of purge control systems, throttle body position, vacuum valve modulated flow or ECM (Electronic Control Module) activated solenoid valve. Depending on which one of these three types of purge control systems your vehicle is equipped with, when the engine has reached or exceeded idle speed the vapor canisters purge control valve will open up from applied vacuum pressure. This will allow all or some of the combustible vapors to be released from the vapor canister into the intake system. When either your engine has used up the fuel in the fuel tank or it has evaporated away, you will need to open the pressure/vacuum relief filler cap and replenish the fuel in the fuel tank at a nearby gas station.
As the fuel is burned, there are four other standard emissions control systems on U.S. built cars. The other four standard emissions control systems are the catalytic converter, the PCV valve, the EGR valve and the air injection system.
If you are not sure if your evaporative emissions control system of your car is functioning properly or within manufacturer recommended specifications you must have the evaporative emissions control system diagnosed as soon as possible.
Emissions Control Unit Lincoln Specific links
Emissions Control Unit Lincoln News
Sublette County deemed 'marginal' nonattainment - Pinedale Roundup
Sublette County deemed 'marginal' nonattainment Pinedale Roundup While the rule will clarify some finer points, the term 'marginal' comes with a set of controls, some of which the state has already implemented and others it has not, according to Monica Morales, a unit chief for air quality planning with the EPA. |
The hybrid premium: How much more does a hybrid car cost? - CNET
The hybrid premium: How much more does a hybrid car cost? CNET Along with the gas engine, hybrid cars have an electric propulsion motor, a high-voltage battery pack, and a power control module, this latter component determining how to feed electric power into the drive system. Now, with many automakers offering ... |
New challenge for Rush - Crain's Detroit Business
New challenge for Rush Crain's Detroit Business But even if only a minority stake were included, the company's 2012 revenue would well surpass the $5 billion mark, including its seating, interior systems, emissions controls and exteriors units. Competitor Johnson Controls Inc.'s interiors unit, ... |
EPA to Hold Public Hearing on Moapa Paiute Reservation for Reid Gardner Coal ... - Mesquite Citizen Journal
 Mesquite Citizen Journal | EPA to Hold Public Hearing on Moapa Paiute Reservation for Reid Gardner Coal ... Mesquite Citizen Journal On Apr. 22, the EPA proposed a substandard plan to reduce dangerous nitrogen oxide emissions from Reid Gardner, requiring only minimum pollution control retrofits to the nearly 50-year-old plant. That proposal was criticized by the Paiutes and ... |