Someone did a ghetto programming just to get car running. Make sure programming is done with proper tools and software.
Wrong way to program GM module
Online Ford PCM Programming
Here is the proper way to do the Ford modules. The newer fords need a new system which I also have an account with.
Buying Programmed modules online
Many sellers offer modules that are fully programmed and they claim will work by just plugging it into car. This rarely works and many require extra steps or calling a module programmer to come over and finish programming. I have seen modules that get to customers blank or will the wrong VIN.
Car computer fanatic