Thanks for the reply Dave, I'm thinking if the on / off switch is limiting voltage I would not get all that smoke when I'm pressing the button for more boost, I did rebuild the smoke unit, if I want I can smoke me right out of the room.
I tried the TMCC settings, just stays on low smoke no matter what I do, no boost, no nothing. Maybe I should have mention this before, as soon as you turn track power on the resistor comes on (low) you can turn it off at the controller or the switch under the cab it will shut down, I have some TMCC engines that do the same thing, so I thought nothing of it. I ordered another regulator, but what bothers me is the old regulator did the same thing, it had low smoke all the time, I did not try to push the more smoke button repeatedly so I don't know what would have happen. I bought the engine used, it's very nice, but who knows what happen in it's other life, maybe that's why they sold it.
