Transmission will not shift properly

Went to work this morning ran fine. Left work put it in gear and it kind of banged a little bit putting it in drive. Took off, felt almost like the emergency brake was dragging. It never shifted once in 13 miles of back roads. 40 mph was running at 2,000 rpm's, normally it runs 70 mph at 2,000 rpm's. Takes off slow like the emergency brake is dragging. Parked, checked the fluid, it's fine and color was normal pinkish. Shut the hood 1 minute later the check engine light comes on. Anyone have any idea? Thanks