Whine/Noise/High Pitch Arg!

cpehaot · 10-07-2009, 12:34 PM

If the fuel pump is the suspect, u can check that by turning your car "ON" (not start) the fuel pump should run for a little bit then stop. You can hear if it's the same noise. The bearing on your vent fan can make some small high pitch noise too so make sure u have it/them off.

VCuomo · 10-07-2009, 12:54 PM

Quote:

Originally Posted by cpehaot

If the fuel pump is the suspect, u can check that by turning your car "ON" (not start) the fuel pump should run for a little bit then stop. You can hear if it's the same noise. The bearing on your vent fan can make some small high pitch noise too so make sure u have it/them off.

It's the ECU...

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

kdo2milger · 10-07-2009, 06:22 PM

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

Roo · 10-07-2009, 06:28 PM

Quote:

Originally Posted by kdo2milger

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.

antennahead · 10-07-2009, 08:36 PM

Quote:

Originally Posted by Roo

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.

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

John

Roo · 10-07-2009, 09:31 PM

Quote:

Originally Posted by antennahead

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.

370Zsteve · 10-07-2009, 07:13 PM

Quote:

Originally Posted by cpehaot

If the fuel pump is the suspect, u can check that by turning your car "ON" (not start) the fuel pump should run for a little bit then stop. You can hear if it's the same noise. The bearing on your vent fan can make some small high pitch noise too so make sure u have it/them off.

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

10-07-2009, 06:22 PM	#3 (permalink)
kdo2milger OG Priesthood Join Date: Feb 2009 Location: Fargo, ND Posts: 17,859 Drives: NISMO T Rep Power: 61	so if they replaced the ECU and the noise stopped you still would not like to keep the z? __________________ Project *NISMO*

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10-07-2009, 12:34 PM	#1 (permalink)
cpehaot Base Member Join Date: Aug 2009 Location: California Posts: 46 Drives: Black STD Z370 Tour Rep Power: 17	If the fuel pump is the suspect, u can check that by turning your car "ON" (not start) the fuel pump should run for a little bit then stop. You can hear if it's the same noise. The bearing on your vent fan can make some small high pitch noise too so make sure u have it/them off.