What would make an a/t cont fuse blow. my car was riding fine and now wont start because of it.

Bummer. Obviously, you'll have to replace the fuse to get it up and running again. If they're affordable, I'd get a few for backup. I suspect you may have a short in the wire and that is grounding to your chassis somewhere. Take a peak up into the front right wheel well and look for a worn spot in the top where maybe some wires got rubbed raw. Let us know if you find anything and we'll try to help. Welcome to NICO Club!

Ooh, take note of your brake lights and backup lights if they work or not because those may have an issue that is related.