OBD2 connector: easy to install. Simply plug it into the OBD2 connector of your car. Plug and Drive OBD2 is a chip tuner box that plugs into the OBD2 port of your car to improve the performance of your car. Plug and Play Widely used: it works based on the OBD2 protocol and reassigns the computer of the car ECUOBD2. Suitable for all cars since 1996. Eco obd2 fuel saver adjusts the boost pressure, fuel volume, injection timing and pressure based on the data received by the control unit to improve the performance of your car. EcoOBD2 adapts to the owner's habits. ECUOBD2 is constantly reassigning to reduce fuel consumption and emissions. When you drive more miles, it gives your car more energy. Save more fuel: if you drive more miles/miles, it updates the map and automatically adapts to your car. EcoOBD2 creates a new map in the ECUOBD2 car computer based on your driving habits to achieve lower fuel consumption for your vehicle.