Just ran across this post.
I also have the N&W #6-28052 Articulated 2-6-6-4 1218, TMCC equipped, manufactured in 2000. My engine has the high-torque Pittman motor and Railsounds 4.0. I have heard the "can motor" term several times, but don't know what that means. Any help?
Also, would I be a candidate for the ERR system upgrade, or would that not apply to my engine?
Lion L