Making Changes To The PCM Calibration
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 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.