Check Your Engine

It seems like my "check engine" light has been illuminated in my dash for, like, ever. At least two years. I've got an OBD-II code reader, and it was only an electrical valve, so it wasn't a huge problem, and I think it even increased my gas mileage slightly. Now after all this time it is gone, and it only cost me a $120 part and $500 in labor. But now my gauges seem lonely without that comforting red glow of the check engine light. Some day they will be able to move on.