What is the difference between a carburetor and electronic fuel injection in UAV engines?

A diaphragm carburetor meters fuel mechanically and does not require sensors, control units or electronic actuators. Electronic fuel injection, also known as EFI, uses sensor data and map-based control to adjust the fuel-air mixture more precisely across different operating conditions. For UAV manufacturers, the main difference lies in system complexity, control precision, integration effort and mission flexibility.