What is need for engine management in vehicle? All Questions › Category: Automotive Electronics › What is need for engine management in vehicle? 0 Vote Up Vote Down chetan shidling asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down chetan shidling answered 4 years ago The need for engine management is: Requirements for lower and lower emissions. Need for better performance Possibility of carbon dioxide emissions being included in future regulations increases. Partial combustion of fuel leads to increase in CO, NO emissions.