Pull the Car Key out from the beginning. Find OBD2 connector in your vehicle and Plug in Effuel Cars Fuel Saver Addition the key into the beginning and wind the path in to the essential stage. (Do whatever it takes not to start the vehicle) Press the reset button for around 5 sec. In the wake of conveying the catch, essentially hold on for quite a while around 30-60 sec. (Effuel will pass on and develop a relationship with the ECU) Click here to buy Effuel Cars Fuel Saver from its official website: https://www.wfmj.com/story/42871205/effuel-reviews-scam-or-legit-the-best-fuel-control-system