EcoOBD2 is very easy to use Plug EcoOBD2 into your car's OBD2 connector. Then turn on the ignition switch for 30 seconds. And turn on the engine. The EcoOBD2 settings are good and suitable for your car. The connected parameters are different for each vehicle, and additional adjustments may not be necessary. EcoOBD2 will recognize your car and your driving habits after driving around 200km/150km, and then EcoOBD2 will adjust to your car's perfect match. EcoOBD2 works on the basis of changing the signal form of the ECU. As a result, it changed the entire jet map.