My catalic converter smells like it's burning when I shut my car off. I had 2 O2 sensors replaced about 6 months ago. When they went bad it smelt like rotten eggs, but now, it just smells like burning metal. any ideas what could be wrong?

 

Im not sure. I can smell a faint smell of exhaust when I turn my car off. I got Greddy sp, I think thats just how it is. Do you have aftermerket exhaust?

 

No after market exhaust. I'm thinking the sensors are malfuncitoning again? I guess I'll have the dealer look at it.