It's the ECU...

BTW, I don't have Nav, but I've heard it at times when my radio isn't on.

I was the original person who posted about this whine. I have received calls from Nissan and they state they are aware of the issue but have no fix for it. I hired an attorney who is currently lemon lawing the car for me. Because I got in writing that they acknowledge the noise but do not have a fix the attorney said its a solid case. I am 3 weeks into it and he said it can take 90-180 days.

No it is not the fuel pump
No it is not the noise above the engine
No it is not a stereo ground

It IS the ecu. From what a tech told me they would have to follow every wire that goes into the ecu to find the issue.

what could possibly cause the ECU to whine?

Tech told me wiring. I do not know and I do not care really. All I know is whenever I drive the car I get a headache and if I remember right I don't recall seeing 'headaches' on the option list.

so if they replaced the ECU and the noise stopped you still would not like to keep the z?

Replacing the ECU does not stop the noise. I am not a techie so excuse my lack of knowledge but the tech tried to explain it to me that if there was a mishap in the wiring into the ECU it could cause the whine, almost like it was a power surge.

I think they all be listening to them loud musics and dey ears be ringin. Bose: Accept No Substitute. :tiphat:

Are you saying, that they are saying, that it is the design of the wiring system causing the ECU to emit the noise?

John

Thats what it sounds like according to what the tech told me. Again I know nothing about how wiring, ECUs etc work/operate this is just what I was told.

Also according to the paperwork I got from Nissan that I forwarded to my attorney he said Nissan clearly stats there is a problem and that they are aware of it but they do not know how to fix it.

:eekdance::eekdance:Hope they can figure it out and fix it soon. Transistors can catch on fire very quickly. I don't want my Z to be on fire :ugh2:

^^The sky is falling - again. :stirthepot: J/K

Anyone who has this problem GET AN ATTORNEY! The worst that happens is you get cash from Nissan, the best thing that happens is you get a new car.

Since I have already hired an attorney if Nissan finds a fix NIssan will still have to pay me a settlement for my hardships.

This is something interesting I've noticed about the high-pitched noise.... It starts out pretty much silent if your car has sat overnight and is cold. You'll notice, once you pull out of your driveway, it "rings" (like after you've been at a loud concert ear-ringing) when you press the accelerator lightly... Only at a certain position. Once the car warms up after about 2 minutes, it does it constantly. Mine has been taken to a dealer and we're waiting for the next step.

Roo is not crazy. If you can hear it, it really does give you a headache. It's that bad. My ears now ring that same pitch when I get out of the car after a little trip. I'm not lemoning the car, but it really should be fixed. That's bad. Really bad. (For those of you with the problem.)

I have this issue as well and it can be quite annoying indeed. The noise is pretty much constant for my car, when it's running. Actually, on a daily basis, it's probably what bothers me the most with the car since I got it last June. Sure you can crank the radio or what not to cover up the sound but you shouldn't have to do that in a brand new car, sports car or not. It is a problem and needs to be addressed by Nissan.