Preheat the oven to 300.
Prepare 2 standard loaf pans by coating with a layer of butter or cooking oil and a coating of flour. (You can use a baking spray instead).
In a stand mixer or with a hand mixer, beat together sugar, eggs, oil and maple syrup.
Add the pumpkin puree to the egg and sugar mix.
In a separate bowl, mix together the flour, baking powder, cinnamon, baking soda, ground cloves and nutmeg.
Add the dry ingredients (flour mixture) to the wet ingredients (pumpkin mixture) in thirds. Mix well after each addition.
Add the pecans and fold in by mixing on low for 30 secs.
Bake for 1 hour and 20 minutes.
Test to see if bread is done by inserting a toothpick in the middle - if it comes out clean - the bread is done. If any cake or batter is sticking to the toothpick, bake for another 5-8 minutes and retest.