Hey guys, could someone help me identify this mysterious loose piece that I suspect Honda mechanic left in the engine bay during my last service. I’d like to see where it should be put back because I searched everywhere without answers. Thanks!

 

Look around the fuse boxes.

 

I would suggest taking it back to the honda mechanic and have them put it back in place. you make any mistake putting it back yourself, no warranty.

 

It's the cover for a fuse box.