My honda car won't crank could it be the computer is at fault cause it was soaked in the flood

If the starter motor doesn't crank, it's not because of the ECM. See if this link helps:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post235560