If you want smoke buy some injectors, the money you waste tryin to smoke with the map sensor unhooked you could buy a good set of jammer's and really wast some money smokin people out!
I unplugged it on my 99'. It just went into limp mode and no power or smoke. Then I tried to make the smoke switch on the map. All I managed to do was fry the sensor. 100 bucks or so later at dodge just to fix it. Don't mess with it.