[JFP in PA]

Your assumptions are incorrect. The AOS is a glorified PCV device that pulls a controlled 5 inches of water vacuum on the crankcase using intake vacuum as its source, to help the low tension piston rings maintain a proper seal. It is not a "flow through" device, it is designed to hold the low vacuum while preventing oil from being sucked into the engine, which could cause hydro locking and total engine failure.

If you have leaking hoses running from the AOS, you will eventually get codes. Change the hoses, they are not expensive.