As far as I can tell, yes. No difference. The first thing that crossed my mind was that the ecu was looking for the air temp, and since it was disconnected, the check engine light came on. That's why I thought it would go away once the cable was connected. But when it stayed on, I figured something had to be reset, but I don't know why. I guess the battery disconnect didn't work. What else can I do? I'm also thinking about sticking around tonight, and going to JAX early tomorrow morning, to get this thing cleared up.