High pitch noise coming from passenger side

TheWeatherman

Fuel pump. Man, don't we all understand that we don't have much sound insulation to save weight? A ton of cars would sound like this if they were doing this same technique. I love my Z and all the mechanical sounds it makes. I love that Nissan took the approach of, "You know, we will make this a purist's car. I makes some noise, but gives them the bang for the buck." God, I love this car. I guess you could say the lack of sound insulation keeps the price down. My '09 FX makes all the same sounds outside, but insulation keeps it out of the inside. Anyone looking at one of these cars shouldn't be worried. It's not loud. You just get used to it and don't even hear it after time.

At least I can hear when something goes wrong!