Alright, I am in a huge hurry...need to get to Jacksonville tonight, and I have to leave asap. This morning, I removed my air filter to clean it, and before putting it back on, I turned on my car. I noticed the Check Engine light came on, and remembered I hadn't replaced the filter, so I turned off the car thinking it would go away once the filter was back on. Well, it didn't. My brother told me to disconnect the battery for a bit, which I did, but the light is still on. Now, it was never on before this morning, so I assume it happened when I turned the car on without the filter in place.

Can anyone please tell me what the problem might be, and how I can fix it. Like I said, the sooner the better, because I have to get the hell outta here. Thanks.