Ither i need correct file to flash or sombody tell me how to adabt gas pedal evrything works exept gaspedal i know manual adabtion is possible ...... but if sombody has file with this adabtion

This gehl has the engien code D4CI55C AND ENGIEN NR 11897138
Ecm nr 0281 020 205
0421 7756 LW PLEACE IM WILLING TO PAY