To prepare marinade, trim fat from the pork, and cut into 1/2-inch wide strips. Combine pork and the next 6 ingredients (pork through sake), and let mixture stand 5 minutes.
Prepare noodles according to package directions, omitting salt; keep warm.
Heat oil in a large nonstick skillet over medium-high heat. Add the pork mixture, and stir-fry for 3 minutes or until pork loses its pink color. Add the sliced bell pepper and shredded carrot, and stir-fry 1 minute. Stir in 1/4 cup water, onions, chili garlic sauce, and juice, and cook 2 minutes. Serve over noodles, and sprinkle with peanuts.