I changed a couple of the output text strings in a  CS file using notepad ++. Removed the original file and json config file. Restarted server and confirmed it was gone. Installed the new file and it is still using the old text strings. Do I need to do something else with the file before the changes will take effect?

If you are editing messages, most plugins use the Lang API; so you'd edit the messages under oxide/lang, not in the plugin itself.

I see it now thanks Wulf!!