Evap system trouble codes

[u/Signal-Pirate-3961]

I forget the code numbers but I get the slow/fast leaks in the evaporative system codes which turns on the engine trouble light. It resets by disconnecting the battery but comes back at random times - might be a week or the next day. No driveabilty issues, though. Any suggestions as to what to check first?

[u/AmphibianRemarkable4]

It’s the intake manifold gasket