A question bout our Chrysler 300, that will no longer start? appreciate any info

What is your question?

We accidentally turned on a wrong road that started as a blacktop & suddenly turned into a muddy/sandy road (After 2days of raining). Needless to say we ended up stuck w/whole engine compartment packed w/mud & stalled. I dug all reachable mud out of the engine compartment & tried to start it again it turned over & started but just for a second b4 dying again. Since then its yet to start again. This was some time ago, we've had it towed& COMPLETELY cleaned, spotless. Still, the motor has not started since the incident. It cranks & cranks, sounds like it's gettin fuel& should be gettin a spark but refuses to fire. It seems as if it's a safety computer mechanism triggered when we were stuck w/mud packed in the engine. Does any1 have any opinions on what might be the cause of why our Chrysler still isn't starting, even after getting it completely cleaned up, & all the mud out of the engine compartment(spotless)? Any ideas, opinions, or any info at all would b GREATLY appreciated!