Now let me tell you the first time, short version!! Received the tuner about 2 weeks after purchased, and gave the error code, called SCT Tuning several times, and after all the checks, they advised me when I was using the tuner on the vehicle, to get as close to the wifi signal as I could with end 10' of the router I questioned that part since the tuner is mobile, but he insisted, what do I know, Ok the days waiting for the tuner I installed a new brick pavers for a sidewalk to the house. So to get close to the wifi signal, I had remove the pavers to get to the signal. SCT also said to disconnect the radiator fan, stereo, amps, fuel pump and connect a battery charger to the car. No that work either. So if Ford can reflash the car to stock in 15 minutes, why don't it work!! No the pavers didn't get moved back waiting on SCT Tuning!!!!