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The Washington Post also reported that in the late 1990s, EPA engineers at Virginia Testing Laboratory had built a system called ROVER, designed to test a car's emissions on the road. The project was shut down in 2001, despite preliminary tests indicating gaps between emissions from lab tests and real world tests of about 10 to 20 percent.
Early in the 1950s scientists discovered that vehicle emissions were a significant factor that had been causing the air quality to deteriorate. [7] This led to the introduction of vehicle emissions standards in California in 1966, furthermore due to the seriousness of the problem, in 1970 the Clean Air Act was introduced in order to regulate these standards all over the United States. [7]
1995 Cadillac Seville disengaged emissions controls whenever heat or air conditioning was on. In 1995, General Motors was ordered to recall 470,000 model year 1991 through 1995 Cadillacs and pay an $11 million fine for programming the car's electronic control unit (ECU) to enrich the fuel mixture any time the car's air conditioning or cabin heat was operating, since the EPA tests are conducted ...
The emissions testing program in Canyon County and Kuna began in 2010 because of an Idaho law that required vehicle emissions tests in airsheds where an ambient air pollutant is at or above 85% of ...
Following the 1950s and 1960s — the unregulated decades when the U.S. automotive industry could prioritize unrestrained horsepower, [2] size and styling — the Malaise Era arose after the Clean Air Act of 1963 began to codify a legislative response to serious national car-generated air quality concerns, and Ralph Nader's 1965 Unsafe at Any Speed galvanized attention on U.S. automotive ...
Marketed as a radically different new car, the Edsel failed to impress the buying public – despite containing new features such as self-adjusting brakes and automatic lubrication, which would later be adopted across the automotive industry – as it mainly consisted of Ford and Mercury components already used in other vehicles.
This type of system is called "Pressure-Suction" type and air is forced into the scoop of the breather and by vacuum is draw out by the road draft tube. Another type used of the pressure suction type was used on VW Porsche air cooled engines whereby the front crankcase pulley has a reverse screw built into it which brings air into the engine ...
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