She starts fine and the two things that happened out of nowhere last night are that the remote now only works about a foot away (Just got a new remote less than a month ago and was working fine until yesterday) and when I'm in neutral coasting to a stop the idle will bounce roughly around 400-600 rpm typically it's around 900ish rpm. When I'm driving it's fine. I have a O2 sensor out but that's been out for a couple months now. Anyone know where I should start? Are the two things a coincidence or tied together? Oh and also yesterday when I pulled the key out before any of this happened the car had locked itself. When i attempted to restart it it wouldn't start (Wouldn't turn over) Radio still was on and so was the alarm. I pulled the battery because nothing would stop the alarm. Later after work hooked it back up and no alarm problems since. Just the rpm thing and the remote. And yes, I double checked the battery is hooked up perfectly. Anyone have any ideas?? Could it be that the battery is going out or the alternator? Thanks!