2pc or 4pc Eco OBD OBD2 Economy Tuning Box Chip For Petrol Car Gas Saving, Benzine Cars Saving Features: Plug and play drive eco-OBD2 economic chip adjuster fuel savings of 15 percent ECU tools. itself to the vehicle, according to the driver's habits and always maintains the remaping ECU to save fuel and reduce discharge. Plug-and-play drive EcoOBD2 economic chip adjustment tank for benzene (C6H6) 15 percent fuel savings. EcoOBD2 is a plug-and-play drive-ready device that reduces fuel consumption and low emissions to the economy. It works based on the OBD2 protocol for remaping on-board computer ECUs. After driving the total 200 km of road, EcoOBD2 adjusts Product EcoOBD2 is very easy to use: Plug EcoOBD2 into OBD2 connector of your car. And turn the ignition on for 30 seconds. And Turn the engine on. EcoOBD2 is easy to install. Simply plug it into the car's OBD2 connector. EcoOBD2 fits all cars from 1996 to one year. EcoOBD2 settings are optional and the best for your car. Even the parameters are different for each vehicle, there might not be a need to make an additional adjustment. EcoOBD2 will recognize your vehicle and your driving habits after around 200 km or 150 miles driving, and then EcoOBD2 adjusts itself to match your car perfectly. Packet included: 1x Car Fuel Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.