Overview: OBD2 necessarily for cars: - Sold after January 1st, 1996 in the USA - Sold after January 1st, 2001 in the European Union - With Benzine engine sold after January 1st, 2003 What does EcoOBD2 make? According to your driving habits, EcoOBD2 makes new map in the car's computer ECU for the vehicle's lower fuel consumption. As you driving much more KM/Mile, EcoOBD2 renews the map and adjusts itself to match your car perfectly for more fuel saving. What is EcoOBD2 Chip Tuning Box? EcoOBD2 is a Chip Tuning Box which can be plugged into OBD2 connector of your car to decrease the fuel consumption of your car. When it plugged into OBD2 connector, EcoOBD2 receives the information from the car computer ECU. With the received data from ECU, EcoOBD2 adjusts the boost pressure, quantity of fuel, injection timing and pressure to decrease the fuel consumption of your car. EcoOBD2 Chip Tuning Box does not exceed the manufacturer requirements. It works only within the tolerance of the engine. EcoOBD2 does not damage the engine and the car computer ECU or not cause any negative effects to the car factory setting. EcoOBD2 does not change any of the settings permanently. To turn back to the car's original settings, just unplug EcoOBD2 from OBD2 connector. EcoOBD2 Installation and Calibration steps: 1 - Pull the Car Key out from the ignition. 2 - Find OBD2 connector(*) in your car and Plug in EcoOBD2 3 - Insert the key into the ignition and twist the key to the first stage. (Do not start the car) 4 - Press the reset button for about 5 sec. After releasing the button, just wait for a while about 30-54 sec. (EcoOBD2 will communicate and establish connection with ECU) 5 - Start up the engine. 6 - EcoOBD2 will recognize your vehicle and your driving habits, after around 200 km/150 miles driving and thus EcoOBD2 will adjust itself to match your car perfectly for more fuel saving. Does your car have OBD2 connector? On-Board Diagnostics, or "OBD," is a computer-based system built into all 1996 and later light-duty vehicles and trucks, as required by the Clean Air Act Amendments of 1990. OBD systems are designed to monitor the performance of some of an engine's major components including those responsible for controlling emissions. Specifications: Plug and Drive EcoOBD2 Economy Chip Tuning Box for Benzine 15% Fuel Saving. It works based OBD2 protocols as remaping the Car's computer ECU.  After driving 200 km road total, EcoOBD2 adjusts itself to the car, according to the drivers' habits and always keeps remaping the ECU to save fuel lower and immission. Package Content: 1pc x EcoOBD2 Chip Tuning Box Interface