I know this is somewhat of a hard question to answer, but i will throw it out there, today while looking over the motor, i saw something unplugged. Now if you look in the top right of your engine bay, you will see some wiring coming out of the firewall that splits into to seperate plugs, one goes to the air filter then there is the other, does anyone know what this connects to, my car is running perfectly with no check engine lights so it hasn't really affected the car, just want to know where it goes