Yes, internal control memory module is 99% the ecu hose, the link was posted earlier. If this is the problem you don't need a new ECU.
While you're not supposed to use gasket maker on the gasket, maybe a tiny smear will hold it in place and act like glue? You're talking about the paper gasket right? If you're talking about an o-ring, just make sure it's not pinched or twisted.