After my 1500 mile DC trip, I can focus on the Benz again.
Codes and review of current symptoms:
Pin (button) 2: code 10
Pin 8: 4,8,13,20 (Note: pin2 LED flashed simultaneously, but gave 10, 10, 13, 20)
Pin 14: 14
Current symptoms: occasional surging idle, low power/stumble on acceleration