Preheat oven to 350 F. In a blender, pulse together pumpkin, maple syrup, soy milk, canola oil, cinnamon, ginger, nutmeg, cloves, salt, cornstarch and agar powder until very smooth. Pour into the pie shell and bake for 60 to 65 minutes until the center looks semi-firm not liquidy. Check the edges of the crust after baking for 40 minutes; if the edges appear to be browning too rapidly carefully remove the pie and apply crust protectors to the edges to keep from getting too dark.