How to Deal with Exhaust Pipe Blockage in China 5 Diesel Vehicles?

[Casey]

SCR catalyst must be cleaned after blockage, and if the blockage persists for too long, the entire assembly needs to be replaced. Below are the specific details of vehicle emission standards: 1. China 3 Emission Standard: Implementation dates are July 1, 2009, for light-duty diesel vehicles; July 1, 2010, for heavy-duty gasoline vehicles; July 1, 2008, for heavy-duty gas vehicles and heavy-duty diesel vehicles. 2. China 4 Emission Standard: Nationwide implementation dates are July 1, 2013, for light-duty diesel vehicles; July 1, 2013, for heavy-duty gasoline vehicles; January 1, 2011, for heavy-duty gas vehicles; July 1, 2013, for heavy-duty diesel vehicles. 3. China 5 Emission Standard: Nationwide implementation began on July 1, 2017, with nitrogen oxide emissions reduced by 25% compared to the China 4 standard, and additional PM emission limits were introduced, making it more stringent. 4. China 6 Emission Standard: The China 6 standard is divided into two phases, 6A and 6B. The first phase starts on July 1, 2020, prohibiting the sale, registration, and licensing of vehicles below the 6A emission standard; the second phase starts on July 1, 2023, prohibiting the sale, registration, and licensing of vehicles below the 6B emission standard.