2011 Ranger no start, sort of.

[Roddy]

Good Morning!
So, I drove home a few days ago without problems. The next morning, no start. Cranks over like crazy, but that is all. So far I have tested some fuses and relays (fuel pump, fuel fump relay and so on) with my DVM and visually inspected some wiring and the inertia switch.
This morning, a few days later (snowing and cold here) I had a thought from the old days. If I pump the accelerator while cranking the truck will start, and run! BUT, now whether no matter what I do with the accelerator engine surges between 3,000 and 4,000 RPM.
Any thoughts? Where do I go next? Any ideas will be appreciated

 

[SenorNoob]

I'm wondering if a vacuum leak could cause that. Not enough fuel until the PCM sees higher throttle?

 

[Brain75]

agreed, rough idle, high idle both point to vac leak.