Preheat the oven to 325 degrees F (165 degrees C). Grease and flour two 8x4-inch loaf pans.

Mix all-purpose flour, sugar, baking soda, salt, cinnamon, and pumpkin pie spice together in a bowl. Add pumpkin, eggs, vegetable oil, and water and mix well. Fold in pecans.

Divide the mixture between the two prepared loaf pans.

Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 1 hour. Let cool in the pan for 10 minutes before transferring to a wire rack.