I bought this engine new when they came out some years ago. It will be a re-decoration/patch project. I finally decided to do it. I must have tested it when I got it, but I was buying a lot back then and I may not have. It has been stored in my house, so no hot/cold/wet.
Anyway: it has the usual TMCC/EOB/RS of the day, and everything on it seems to work (smoke is off) - sound, couplers, EOB, horn...but it will only move in FWD (long-hood).
When I attempt to run it in REV, it does not move - at all - and when I increase the throttle, often the horn blows constantly and the headlight goes off.
It runs well in FWD, for several feet, so the gears are not suspect, it would seem. Mechanically it is smooth.
I have reset the features, tried running it in Conventional, turned EOB off - all with the same results. FWD OK, REV no-go.
Any thoughts before I contact Atlas?