It was a spark plug wire. I have not had to work on this car and did not know.
So to protect it, I sliced a one inch piece of hose from end to end and covered the "nip", sealing it up with some gasket glue.
My only fears were moisture coming into it, and shorting or arching - possibly igniting gas vapors - so I am all good.
Thx.
Danny Hindes