I know knottt one thing about ECMs or even how them black boxes fuction, welcome to the forum.
EPA has really crashed down on anyone messing with ECMs so it is rare to find anyone willing to talk about ECMs over an open forum. Face to face might be a different story but in My mind I think anyone thats a member in this forum will not talk about programming ECMs.
Please do though, post us in some pics of Your truck. We’d love to see those and discuss any other matters with it.