OBD2 Economy Chip Tuning Box DieselBluePower Fuel Optimization Device This product is power fuel optimization device that can be inserted into your car OBD2 connector, thereby reducing your cars fuel consumption. According to your driving habits, EcoOBD2 makes new map in the cars computer ECU for the vehicles 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. Eco OBD2 help you save fuel consumption:- Up to 15% fuel savings. Specification: Color: Blue; Voltage: 12 (V); Working temperature: 0-60 (); Weight: 40g; OBD2 necessarily for cars: - Sold after January 1, 1996 in the USA; - Sold after January 1, 2001 in the European Union; - With diesel engine sold after January 1, 2003; Installation and Calibration: 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 buttom for about 5 sec. After releasing the buttom, just wait for a while about 30-54 sec. (Itwill communicate and establish connection with ECU) 5. Start up the engine. 6. It will recognize your vehicle and your driving habits, after around 200 km/150 miles driving and thus it will adjust itself to match your car perfectly for more fuel saving. Where located OBD2 connector in your car? 1. Drivers side, underneath dasboard, in the area under the steering column; 2. Drivers side, underneath dasboard,between the driver-side door and steering column area; 3. Drivers side, underneath dasboard, between the steering column area and the center console; 4. Drivers side, dashboard instrument/gauge area, between the steering column and center console; 5. Drivers side, dashboard instrument/gauge area, between the driver-side door and steering column; 6. Center console, vertical surface left of vehicle centerline; 7. Center console, vertical surface right of vehicle centerline or on passenger side of center console; 8. Center console, horizontal surface in front passenger area. Package Included: 1 X Eco OBD2 Chip Tuning Box Interface; 1 X User Manuel In English.