Ihazen

I am a new user here I have a 2013 Fusion eco Titanium AWD about 42k miles & have done all the recommended maintenance. Every so often now and getting more common, it stalls. First it only did it when I would go from Reverse to drive and stated at slow or ideal speeds. I took it in but it would never throw a serves light and no codes. Best way i can describe it is as i pull forward it starts out find then looses all power, stepping on the gas has no effect, the rmps drop under 1k and bounce up to 1.2k about till it stalls out. It is now happing even when just pulling forward weather engine is cold or warm. One time when it did it and did not stall right away i I hit the power to turn it off when i did this it died right as I hit the button and it tried to start again, this was the first time it did not start and it did throw a check engine light. A coworker had a obd2 (i think ) code reader and it said it was the fuel pressure sensor, one in the fuel rail and then another one. but when i turned it on to take to the dealer the light went back off. dealer is not sure what it could be so I am hoping someone might be able to help out if they have had the same issue.