OP, have you isolated the motor itself to verify its the actual motor cause the issue running and throwing the code? I hooked a AA battery to some wire and then hotwired my motor let it spin the oil down slowly and not get flung off the shaft and also to verify it was working like a motor should.
My question would be is if the only difference with these motors is the can/shaft length and the holes to line up the screws for mounting?
This was my solution to the noise that was coming from the engine. I tried a little foam in between the metal bracket and the chassis and the tolerances were too tight to make any difference because the foam would eventually compress and then that vibration would be present.
I whipped up a quick 3D design and printed it out based on the bracket that holds the smoke unit. After install it has made a night and day difference from the noise. I cleaned out my motor with electronic parts cleaner and then reapplied the oil as well. I just used some 5w-30 fully synthetic oil. I did have to get familiar with soldering the motor connections as well as the PCB itself lol.
Like GRJ said, the motors themselves can't be all that expensive so I figured fighting with that portion would result in the most wasted time and effort. I may buy some MTH motors for the future as spares and to see if there are any whisper quiet ones hiding in the bunch but for now I'm much happier. I did post a little video on youtube but the file was too large to post here.
