Have a 2000 Dodge Gran Caravan, came outta the doctors office and the engine turned over, but wouldn't fire. No codes, 3.3 V-6 engine cranks but won't start. Tried starting fluid, and got nothing. Did notice though, the RPM gauge, even though the engine is not running, is showing 2200 on the RPM dial. So I am guessing a crank sensor to begin with maybe?

Any other ideas on that?

could be, also do these tests https://www.youtube.com/watch?v=064Ilsz8Fzg