Vehicles equipped with SCR technology have sensors to control the operation of the system. NOx control consists of a warning lamp located in the instrument cluster and a NOx sensor mounted in the silencer. If the amount of NOx in the exhaust gas exceeds the limit value of 7g/kWh, the vehicle’s fuel injection system automatically reduces fuel injection and the vehicle loses traction. The maximum torque of the vehicle is reduced by up to 40%. Exceeding the permissible emission levels, the catalyst will soon be damaged. Filters dry out and shrink as no liquid passes through the filters. Results are stored in the OBD system (On-Device Diagnostic System).
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