I have a problem with my switch wiring and I can't seem to figure it out. Here is what I have, and please excuse my ignorance when it comes to terminology. I have a layout with 13 switches and all switches are either Lionel 022 or Lionel 031 and they have there own separate power through a Z-1000 brick with all of the switch controllers located at a central control panel. The particular switch that is giving me the problem is a Lionel 031. Its lights up and works but when a car starts to enter the switch, it makes a spark and a buzzing sound as soon as one wheel is on the switch and one wheel in still on the piece connected to the switch. The weird thing is, (at least weird to me) is that it only does it on two of the three possible tracks. If the car is entering/leaving the switch on the separate straight part, it does this. It also does it when entering/leaving the switch on the curve part. If a car is entering/leaving the switch on the straight part next to the curve, it does not make a spark or buzz. I have basically rewired all of the switches and still have the same problem. Any ideas?