I have a Nissan Maxima which I bought in 2002. I had only done a 1000K on it when all of a sudden I started getting a very disgusting smell, like that of a rotten egg coming from the engine everytime I would stop the car. The smell would disappear after a while and when I would start up the engine the next time, the smell would be there again. I seriously have no idea what the problem is and would really really appreciate it if anyone could help me figure out what the problem is.