I hunted through the edge site and couldn't find it for the Expedition, but I did find this:
"Note: Even though the following vehicles have an engine type that the Evolution would otherwise support, due to calibration issues on the PCM, it will NOT work on: Heritages, Lincoln Mark LTs, Explorers, Expeditions, or Excursions."
I wonder if Bill can work around the issues with a Gryphon?