Like in any other vehicle, the Engine Control Unit (ECU) in an NISSAN is in charge of managing and controlling numerous aspects of the engine's operation. The ECU analyzes the data it gathers from different sensors located throughout the car to make judgments and tweaks that improve emissions, fuel economy, and engine performance.

Nissan owns the luxury automobile brand NISSAN; hence, the ECUs used in NISSAN automobiles are customized for those models. The engine control unit (ECU) of an NISSAN car monitors and manages a number of engine operations, including fuel injection, throttle position, and emissions management.

It's crucial to remember that depending on the precise year, model, and engine type, NISSAN cars can have varied ECU layouts. Specific software is preprogrammed into each ECU.