what would cause this to happen a heated 02 sensor

 

WTF?

O2 sensors are heated, they are made that way. They need to be hot to work properly.

 

x2...LOL

 

its throwing a code for an overheated 02 sensor most likely just wore out and went bad just wanted to ask

 

this

 

The heaters can and do over heat and many times will take out a PCM. replace it or unplug it.

 

I got it on the way my car is running so rich and spewing fumes out the exhaust which I am pretty sure is the o2 sensor causing it

 

Is it throwing a code for the o2 sensor? If the car has a lot of mileage, chances are the sensor is bad. You can replace it yourself for under $100. There is also the off chance you have an exhaust leak, which will also throw an o2 code, but probably won't make your car run as rich as a bad o2.

 

yeah its throwing a code for o2 sensor got one on the way and am pretty sure there is an exhaust leak too I just got the car and I got a headach driving it home because of the fumes