Method, system and storage medium for controlling exhaust gases produced by an internal combustion engine

A medium encoded with a machine-readable computer program code for controlling exhaust gases produced by an internal combustion engine, said medium including instructions for causing controller to implement a method comprising:

• obtaining a vehicle data signal responsive to the engine performance of said internal combustion engine;
• processing said vehicle data signal so as to formulate an engine operating parameter, wherein said engine operating parameter is responsive to the hydrocarbon content of said exhaust gases;
• and
• controlling the fuel introduced into said internal combustion engine in a manner responsive to said engine operating parameter.

A system for controlling exhaust gases produced by an internal combustion engine comprising:

• a vehicle sensor for obtaining a vehicle data signal responsive to the engine performance of said internal combustion engine;
• and
• an engine control module for processing said vehicle data signal so as to formulate an engine operating parameter, wherein said engine operating parameter is responsive to the hydrocarbon content of said exhaust gases, and
• wherein said engine control module controls the fuel introduced into said internal combustion engine in a manner responsive to said engine operating parameter.