Reply to "MTH Passenger Cars Kill TIU Signal"

I had the same issue with my Premier PS1 Blue Comet after Marty Fitzhenry converted it to PS3 for me. The track signal was perfect, until I put the cars behind it. I replaced all the bulbs in the cars with LEDs, and the problem was solved. I didn't really think much of it since the cars were made before DCS hit the market, and figured it was a necessary upgrade to make older equipment compatible with a new system.