If you were smelling gas when it wouldn't start, it sounds like you lost spark to the plugs.
First, I need you to check for spark. Here is a link that explains how it's done:
Now, I don't know if there were any indicators of trouble before, but if it lost spark and it happened suddenly, it could be a faulty crankshaft position sensor. Take a look through this link and let me know if it mirrors what you have experienced:
Let me know. Also, if the battery has been disconnected, chances are there are no diagnostic trouble codes stored anymore. However, here is a link that explains how to check for them just in case:
Let me know what you find or if you have other questions.
Wednesday, March 31st, 2021 AT 8:39 PM