2003 Toyota Camry exhaust system problems

When driving a rotten egg smell enters the passenger cabin which causes the occupants to feel a burning sensation in the nose. The consumer noticed this about three weeks after purchasing the vehicle. The consumer contacted the manufacturer. The manufacturer states there is nothing wrong with the vehicle. The gasoline stations in tennessee are not regulating the amount of sulfur in the gas.

03 camry manifold at 45k took car to dealer with complaint of knocking/vibration coming from engine. Dealer replaced water pump under warranty and recommended tensioner be replaced, out of warranty item, to fully correct noise. Noise persisted and I learned to deal with it since it wasn't harming the engine. Progressively got more annoying and at 58k took back to dealer. Sservice rep listened to it for 2 minutes and said it was the intake manifold which would cost $591 for parts and labor.