EFI & ECU Units

ECU electronic control unit is a device responsible for overseeing, regulating and altering the operation of a car’s electronic systems. Each of a car’s electronic features, such as an anti-lock braking system or electronic fuel injection setup, will typically be controlled by an ECU.

EFI stands for ELECTRONIC FUEL INJECTION. … The ECU then monitors the information from the sensors and ensures the correct amount of fuel and air is used to provide optimum fuel efficiency and performance and also minimise exhaust emissions.