Thanks for your thoughts. I think that from what you said I now understand what was my problem. I think if I would of killed the ground on that sensor that I would of not got that error code. That why I lost the code when I unhooked the hopper wires. I not happy with my connector, so I need to replace it. Just to hard for me to solder the pins because that connector is so small. I now know the I really don't need to shut down that sensor to eject the coins. Bigger connector and bigger switch.