Which turnouts are you using? Most are "DCC Friendly" and don't require special wiring, but some do.
It takes an iron man to play with a toy iron horse.
The frog needs to be fully isolated. Check it with your ohmeter - if there is connection to _any_ other rail the Frog Juicer won't work.
Hi- When wiring track for DCC, and using properly wired frog juicers from Tam valley depot, is it neccessary to gap the rails in a facing point turnout situation?