Electronic Control Unit (Ecu)
NOTE:
Components are grouped into 2 categories. The first category covers INPUT DEVICES, which control or produce voltage signals monitored by the Engine Control Unit (ECU). The second category covers OUTPUT SIGNALS, which are components controlled by the ECU.
ECU receives and processes signals from input devices. Such operating conditions as cold starting, altitude, acceleration and deceleration affect input device signals. Based upon signals received, ECU sends signals to various components which control fuel injection, ignition timing, idle speed and emission control systems.