Preheat oven to 350 degrees F.
In a large bowl, or food processor, gently combine butter, flour, pecan crumbs, and salt. Slowly add in water, one tablespoon at a time until it is well combined and moistened.
Press the crust into a 9x13 baking pan, and bake for 5-10 minutes.
While the crust is baking, melt the chocolate chips in the microwave, or in a small saucepan on the stove.
Once it is melted add to bowl with the syrup, sugar, eggs, vanilla, and pecans and stir until combined.
Pour evenly over the crust.
Return the pan to the oven and bake until the filling sets, about 30 minutes. Allow the filling to cool to finish setting before cutting.
Cut into slices and serve.