Is it possible to change the way an e92 ecm gets the 4 wheel drive signal. I have a 2015 l83 4x4 engine and trans swapped into a 97 k1500. the truck that the engine came out of had the push button 4x4 so the ecm is looking for the 4x4 signal from the lan. The manual transfer case model gets the 4x4 input from input wires directly wired to the ecm. I have the wires form my transfer case wired to the ecm but im not showing the 4x4 input with the scanner and its going into limp mode or something when its in 4 low. Is it possible to change where the ecm looks for this signal using HPtuners.