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Heavy duty vehicles (greater than 14,000 lb or 6,400 kg) made after 2010, [1] for sale in the US are allowed to support OBD-II diagnostics through SAE standard J1939-13 (a round diagnostic connector) according to CARB in title 13 CCR 1971.1. Some heavy duty trucks in North America use the SAE J1962 OBD-II diagnostic connector that is common ...
The Society of Automotive Engineers (SAE) recommends a standardized diagnostic connector and set of diagnostic test signals. ~1994: Motivated by a desire for a state-wide emissions testing program, the CARB issues the OBD-II specification and mandates that it be adopted for all cars sold in California starting in model year 1996 (see CCR Title ...
The three most recent model year vehicles and those that are 25 model years or older are exempt from emissions testing, as well as all motorcycles, recreational vehicles (RVs), motor homes and diesel-powered vehicles. [33] Idaho – no longer required as of July 2023. [34] Illinois – biennially after the vehicle is four years old.
Assembly Line Diagnostic Link, Assembly Line Data Link, or ALDL is a proprietary on-board diagnostics system developed by General Motors before the standardization of OBD-2. It was previously called Assembly Line Communications Link or ALCL.
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1952 Shell Oil film showing the development of the diesel engine from 1877. The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is called a compression-ignition engine (CI engine).
Shoppers visit the weekly Carmel Farmers Market in Carmel-by-the-Sea in January. A man armed with an assault rifle was shot by police in Carmel-by-the-Sea on Friday. (Genaro Molina/Los Angeles Times)
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