u/Any_Asparagus3409

Hi all, as the title says my bike is showing a CEL with error code 21 after having sat for a few months while I was away at college. It started right up as usual with zero issues, the battery wasn't flat and it started without a jump just as fast as it always has. Online it seems people have issues starting their bikes with this code but I have none of those symptoms. Will the code clear on its own if its a fluke? I'm fixing to sell it in a few weeks because it just sits around, but don't want to give someone a lemon.