Hello, the Dakota Manual 1988 4*4 Sport urges me

I have a Dakota that drowns with the cobustible one. He wives him the acceleration body, check the fuel output in the injections, spark in the cables, spark plugs, in short, but it remains the same, in fact consumed a lot of gasoline before `present this failure. It is 6 cylinders. I hope they can take your hand. THANK YOU.