The only mods are a K&N airfilter and the previous owner put glass packs on it, the water was leaking into passenger rear floor board, but thats fixed. Dealer said it came through the firewall. I think its a sensor causing this, the motor didnt seem unusually hot, and no coolant leaks. maybe the computer is tricked somehow or is in limp-home mode. the check engine light is also on. im going to scan it tommorrow, but i need to figure out how to get it home. Im stuck at work now, and its still on the side of the road.