Functioning of ECU

Controlling the air-fuel mixture: This is the one of the most Important function of ECU as it controls the fuel mixture used by the engine. It determines the amount of air-fuel mixture injecting into the engine. The program received the necessary data and computes it and gives the appropriate amount of mixture. It also decides whether it is the right time to deliver the air-fuel mixture in a proper ration or not. This process is also called injection duration.