Does the original three-way catalytic converter have a specified code?
1 Answers
Most three-way catalytic converters that are matched with the vehicle manufacturer are coded and packaged according to the requirements of the vehicle manufacturer. The original three-way catalytic converter does have a specified code. Currently, there are four main types of codes for three-way catalytic converters, namely DOC, DPF, SCR, and ASC, which represent different types of catalytic converters with varying efficiencies. DOC refers to the Diesel Oxidation Catalyst, which is the most common type of catalytic converter. DPF stands for the Diesel Particulate Filter, which is currently equipped in many China VI-compliant vehicles. SCR refers to Selective Catalytic Reduction, which generally requires the use of a urea injection system. ASC is the Ammonia Slip Catalyst, whose main function is to eliminate excess or escaping NH3. The letters on the three-way catalytic converter represent different types of catalytic converters. Common examples include DOC (Diesel Oxidation Catalyst), DPF (Diesel Particulate Filter), SCR (Selective Catalytic Reduction), and ASC (Ammonia Slip Catalyst). Different vehicle models require different catalytic converters to minimize exhaust pollution. For example, trucks generally use SCR (Selective Catalytic Reduction) catalytic converters, and when combined with a urea injection system, they can effectively reduce nitrogen oxides and particulate matter in diesel exhaust. Nowadays, SCR is often seen in diesel vehicles.
