(ECU) The main computer in a car that controls all facets of the engine.  Electronic feedback carburetor A fuel-metering device in which the air to fuel ratio is controlled by continual variations of the metering rod position or air bypass modulation in response to an electronic control signal.

A digital computer that controls engine (and sometimes transmission, brake or other car system) functions based on data received from various sensors. Examples used by some manufacturers include Electronic Brake Control Module (EBCM), Engine Control Module (ECM), Powertrain Control Module (PCM) or Vehicle Control Module (VCM).

(ECU) Complex digital unit that controls the many systems inside an engine so that they work to their maximum at every point around the lap. This helps to keep timing right in order to maintain performance at any time. Engine mappings can change completely from circuit to circuit depending upon the nature of the track.

'Black Boxes' that constantly monitor and control the way engines and transmissions perform. ECUs automatically adjusting timing and emissions by receiving signals from various sensors fitted around the engine and transmission, which are constantly monitoring temperatures, engine and road speeds, exhaust gases, throttle positions, and pressures within the engine. At the same time they are sending signals to various motors, actuators, solenoids, to regulate and adjust the engine and transmission, ensuring the vehicle performs to its optimum.

The Electronic Control Unit (ECU) controls the fuel injection system, ignition timing, and the idle speed control system. The ECU also interrupts the operation of the air conditioning and EGR systems, and controls power to the fuel pump (through the contr

A computer which contriols such things as ignition and fuel systems

In automotive electronics, an electronic control unit (ECU) is an embedded system that controls one or more of the electrical subsystems in a vehicle.