What is engine calibration?

Engine calibration is the process of adjusting and fine-tuning an engine's control parameters to optimize its performance, efficiency, and emissions. Calibration engineers use specialized software and testing equipment to modify engine control unit (ECU) settings, ensuring the engine meets regulatory standards and manufacturer specifications. This work involves balancing factors such as fuel economy, power output, drivability, and environmental impact. Calibration is essential for various engine types, including gasoline, diesel, and hybrid systems.