why is it after spending all this cash do I own a fancy code reader? this autel maxysy pro was marketed as being able to code modules along with pas through programing capability's, I have yet to be able to simply replace a ford pcm. usually the unit is supposed to pull the info from the old pcm for overwrite to the new but this unit even though I was told it would doesn't even have the option to! we were promised and have paid for this ability. this unit does not work even close to advertised, its time to get a class action suit started to hold autel accountable, we paid for it they promised it where is it!