In a food processor, process until fluffy; the cream cheese, 1 egg, one third cup sugar and 1 teaspoon vanilla. Spread the mixture in the bottom of the unbaked pie shell. Sprinkle the pecans over the cheese mixture.
For the filling, beat the 3 eggs with an electric mixer until foamy. Do not overmix. Add the corn syrup, quarter cup sugar, 1 teaspoon vanilla and the salt. Mix well. Pour this over the pecans.
Bake in a preheated, 350 degree oven for 40 minutes. Serve warm or cold.