I use to work on fords after I trained at uti on ford trucks back in 1990's.
Don't even know if new vehicles use sensor like old ones since I don't work on them anymore.
Dirty mass air flow sensor use to be a culprit in all vehicles.
One thing I heard from my mechanic friend is changing plugs in newer fords are not fun.
Here link to explain mass air flow sensor.
Got to be careful thin wires.
http://www.fordf150.net/howto/clean-...low-sensor.php