Making Changes To The PCM Calibration
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2016 Ford Transit-350 HD, 2016 Ford Transit-350, 2016 Ford Transit-250, 2016 Ford Transit-150, and 2016 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
At certain times, the entire flash EEPROM needs to be reprogrammed. This is due to changes made to the strategy or calibration after production. Refer to PCM Reprogramming on the scan tool.