I was going through some threads regarding the check engine light and saw all the suggestions to go to Autozone, which I'm going to do this weekend. I don't think it's going to be something serious, the car sounds/feels healthy. I don't know if this is related, but my tire pressure light came on the other day and went away later in the day. I don't know if a bad tire pressure sensor could cause the check engine light to come on. However, I'll know what caused the light to go on soon enough. Thanks.