I'm reading other posts and it occurred to me that I made a mistake. I acquired a used PS3 board out of a tin plate engine. There's only one board. I mistakenly put it into a Weaver steam M1 engine that I was upgrading. I figured as long as it had sounds and a headlight, I'd be happy. So I changed out the sound set to a PS3 file for a matching MTH engine. The engine keeps shorting and shutting down so I put her on a shelf waiting for me to troubleshoot on a better day. The shorting is intermittent and I haven't found the source. It seems like it's the main drivers and maybe they're shorting from the side rods?
Being a single PS3 board, I put in the wrong steam chain files. So now I'm reading I should have chosen a PS2 file (if it was an upgrade board kit)?
or should I use this board for only diesel apps? ( I believe I did that last time)
I was going to abandon the engine if I couldn't figure it out.