Hi everyone, I have a 2004 TL. In the past few months, after I drive fast / on a highway, I am smelling a strong sulfur (rotten eggs) smell coming from my car. I really don't know what the problem could be, Its running well otherwise. Has anyone had this happen to there TL? help please!

 

It happens after driving overly fast or under hard acceleration. The cats heat up big time. Its pretty normal and nothing to really be alarmed about. If you starts smelling other things...like your clutch, then you should be alarmed.