[Buddy]

Hiya! Welcome to YorkieTalk! For training, you can use the 'pee-pole' which I've heard is good - it's a yellow pole thing, that attracts the dog to pee on it, rather than in the house, you just stick upright in the ground outdoors. As for eating his own doggy-doo-doo, I new someone who hasd this problem, and it is a bit gross, but quite common. I also agree with River said, ther is something ( ithink) that goes in their food. You can also tell him, in a stern voice 'No! Leave it, bad boy.' when he goes to eat any poop. It should work! Wishing the best of luck!
-Jade