I have what I would call a brand new PS3 Conrail SD80MAC http://mthtrains.com/20-20432-1
Cab #4114
She ran fine when I got her. I converted her to 2 rail and she still ran fine. She was left in the lead of a big consist. I upgraded the TIU to DCS version 5.0. I then tried running the consist and the lead engine (the PS3 SD80MAC) started up in conventional? I was having so many issues I put her on a shelf for figuring out later on. Well that day is here. She won't be found by the remote. She starts right up in conventional when other engines see the watchdog and stay quiet.
I tried running her in conventional to get a conventional reset in. She starts right up and runs backwards every time. I tried a reset when she was running but she ignores it. If I lower the voltage to 8.5 on the Z4000, she dims the headlights, turns on the interior lights, and sits there idling. As soon as the voltage is turned any higher, she runs in reverse. If I turn her around on the 2 rail track with AC power, she backs up the other way.