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Houdry first developed catalytic converters for smokestacks, called "cats" for short, and later developed catalytic converters for warehouse forklifts that used low grade, unleaded gasoline. [8] In the mid-1950s, he began research to develop catalytic converters for gasoline engines used on cars and was awarded United States Patent 2,742,437 ...
The initial catalytic converters were installed in cars in the 1975 model year. In 1976, the three-way catalyst was introduced, which, after updates, has been able to eliminate 97% of tailpipe hydrocarbon emissions, 96% of carbon monoxide and 90% of nitrogen oxides produced in automobile engines and those used in light trucks and sport utility ...
One problem with the strict standards was that they did not account for catalyzed engines, meaning that vehicles thus equipped had to have the catalytic converters removed before they could be legally registered. In 1985 the first catalyzed cars entered certain European markets such as Germany.
Last year, thieves stole 27,609 catalytic converters in the US, with more than half of those thefts happening in California, according to the National Insurance Crime Bureau.
Catalytic converter thefts are on the decline, new 2023 data shows. ... converters stolen each month is down significantly from its peak in 2022 through the first nine months of this year ...
OBDII + catalytic converter tamper check + fuel cap leak test for 1996 or later vehicles. Tailpipe/tampering testing for 1995 and older vehicles. Any diesel vehicle with a model year of 1975 and newer and a GVWR of 10,500 lbs or less. Annual testing. OBDII + catalytic converter tamper check + fuel cap leak test for 2002 or later vehicles.
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