Rough Idle, good accel, dies @ level speed, spews coolant

[tromero]

Hello. Suggestions anyone?

2003 excursion 6.0

Started 2 days ago as a rough idle, now very rough idle, black smoke, good acceleration, but dies at any level speed. It is also blowing coolant.

Codes: P0284 P2287 P2290 P2291

Oil change 1,000 miles ago, air filter change 500 mils ago, fuel filter change 20,000 miles ago.

Thanks!