- Preheat the oven to 350°F (175°C). Grease and flour a 9x13-inch baking pan. 
- In a large mixing bowl, combine the chocolate cake mix, water, vegetable oil, and eggs. Beat on medium speed for 2 minutes until well combined. 
- Pour the batter into the prepared pan and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean. 
- Once baked, remove the cake from the oven and let it cool for about 15 minutes. 
- Using the handle of a wooden spoon, poke holes all over the top of the cake, about 1 inch apart. 
- In a separate bowl, mix the sweetened condensed milk with 1/2 cup of caramel sauce. Pour this mixture evenly over the cake, allowing it to seep into the holes. 
- Drizzle the remaining 1/2 cup of caramel sauce and 1/2 cup of chocolate fudge sauce over the top of the cake. 
- Allow the cake to cool completely, then spread the whipped topping evenly over the top. 
- Sprinkle with chopped pecans and chocolate chips. 
- Refrigerate the cake for at least 2 hours before serving to allow the flavors to meld.