High-Pitched Frequency Update

bumblez · 12-05-2009, 10:48 PM

I just got called from my service maneger 2days ago. He said he just placed order and the new ECU will be there next week. I'll post my result after they replaced it.

But he said he is not sure this noise will fixed.

getmecoffee · 12-05-2009, 12:05 AM

Did that fix the noise?

Silver37 · 12-05-2009, 10:11 PM

Yeah....that would be the first actual fix that I've heard of on this topic!

MightyBobo · 12-05-2009, 11:09 PM

BTW, I figured this was worth mentioning, but I remember getting off the track the first time and popping the hood, and holy **** that whine was surprisingly loud. I heard it with the hood down, and when I popped it, it was even worse.

It was the first time I'd ever heard it.

bumblez · 12-05-2009, 11:35 PM

Quote:

Originally Posted by MightyBobo

BTW, I figured this was worth mentioning, but I remember getting off the track the first time and popping the hood, and holy **** that whine was surprisingly loud. I heard it with the hood down, and when I popped it, it was even worse.

It was the first time I'd ever heard it.

same as mine. I can hear that noise, standing outside of car. That whine is F****** loud.

MightyBobo · 12-06-2009, 12:14 AM

Kinda worried me because this happened on the 1st day, and on the 2nd day I didnt hear anything at all, and that was when my TCS/Low traction lights were light up solid.

USMCASA · 12-06-2009, 02:44 PM

i can hear it in my car, sounds almost like a ground issue you would get with an improperly grounded audio system but its faint. i'm gonna call my dealer and see if they have replaced the ecu in my car yet, its an 09, but just picked it up new a week ago.

cab83_750 · 12-06-2009, 09:03 PM

I don't want to sound harsh here.. But merely uneducated.

I read a lot of "...we believe it is the ECU......"

So cant the owner and/or the dealer just physically loosen the ecu, place it next to the ear and voilà ("it is the ecu").

Silver37 · 12-10-2009, 07:07 PM

You Z guys got a fix for this problem yet???? I've been living with the noise for over 2 months now and I'm about to lose it!

antennahead · 12-10-2009, 08:55 PM

Quote:

Originally Posted by Silver37

You Z guys got a fix for this problem yet???? I've been living with the noise for over 2 months now and I'm about to lose it!

No one I know of here has posted a fix, nor a "definitive" cause yet (for the inside noise believed to be the ECU, not the engine "throttle body" noise).

If you G guys find it first, please come back and post some results, I'll do the same in the G37 forums. Thanks.

John

Silver37 · 12-13-2009, 08:15 PM

Do you hear the noise every day? The days I have it, it's there all day. Other days I don't hear it at all. I'm looking for what's triggering it.

vipor · 12-17-2009, 12:47 PM

Quote:

Originally Posted by Silver37

Do you hear the noise every day? The days I have it, it's there all day. Other days I don't hear it at all. I'm looking for what's triggering it.

the noise i have is very quiet and does not fluctuate. it is there every day, not matter the temp or any setting in my car. thankfully mine is tolerable.

getmecoffee · 12-17-2009, 12:43 PM

I hear the noise everyday. My service manage spoke to his advisor, and they came back to me with this:
*Nissan is aware of the problem
*Only a small amount of the Z's have the issue (prob not reported enough)
*He's willing to replace the ECU; however, he advised to wait until they have a true answer to the cause.

For those who have replaced the ECU, has the noise gone away?

Silver37 · 12-17-2009, 06:30 PM

The noise wasn't present in my car last Saturday until I flipped on the lights to drive in the rain. The noise came on pretty loud at that point. I'm finding that something is triggering mine to start, and once it has started it won't stop that day.

bumblez · 01-06-2010, 02:25 AM

Finally, I went to Nissan dealership for replacing ECU to get fixed high pitch noise today. After the tech replaced ECU, I did test drive and that noise was still there.

WTF!!!? I've been waitng for almost 5 hours at the dealer today!!
So the general maneger called to the nissan department rep. And
They said they found the ECU which has serial number end with B, makes high pitch noise. Old ECU should be change to New one which has serial number end with A. My service maneger checked ECU's serial number on my car and it's end with B. That's why my car still make noise even though they changed to new ECU. My stupid service maneger didn't check it before he placed order.

Anyways...I hope it's true this time.
Dealer just gave me a rent car(sentra) and I have to wait another 1weeks to get it fixed. I will update if its fixed.

P.s/ if anyone need contact number for department rep guy, Pm me

12-05-2009, 10:48 PM	#1 (permalink)
bumblez Enthusiast Member Join Date: Sep 2009 Location: VA Posts: 326 Drives: Amuse 370z Rep Power: 17	I just got called from my service maneger 2days ago. He said he just placed order and the new ECU will be there next week. I'll post my result after they replaced it. But he said he is not sure this noise will fixed. Last edited by bumblez; 12-05-2009 at 10:52 PM.

12-05-2009, 11:09 PM	#4 (permalink)
MightyBobo A True Z Fanatic Join Date: Feb 2009 Location: Las Vegas, NV Posts: 8,465 Drives: No cars; only bikes Rep Power: 54	BTW, I figured this was worth mentioning, but I remember getting off the track the first time and popping the hood, and holy **** that whine was surprisingly loud. I heard it with the hood down, and when I popped it, it was even worse. It was the first time I'd ever heard it. __________________ I don't own a car anymore.

12-06-2009, 12:14 AM	#6 (permalink)
MightyBobo A True Z Fanatic Join Date: Feb 2009 Location: Las Vegas, NV Posts: 8,465 Drives: No cars; only bikes Rep Power: 54	Kinda worried me because this happened on the 1st day, and on the 2nd day I didnt hear anything at all, and that was when my TCS/Low traction lights were light up solid. __________________ I don't own a car anymore.

01-06-2010, 02:25 AM	#15 (permalink)
bumblez Enthusiast Member Join Date: Sep 2009 Location: VA Posts: 326 Drives: Amuse 370z Rep Power: 17	Finally, I went to Nissan dealership for replacing ECU to get fixed high pitch noise today. After the tech replaced ECU, I did test drive and that noise was still there.WTF!!!? I've been waitng for almost 5 hours at the dealer today!! So the general maneger called to the nissan department rep. And They said they found the ECU which has serial number end with B, makes high pitch noise. Old ECU should be change to New one which has serial number end with A. My service maneger checked ECU's serial number on my car and it's end with B. That's why my car still make noise even though they changed to new ECU. My stupid service maneger didn't check it before he placed order. Anyways...I hope it's true this time. Dealer just gave me a rent car(sentra) and I have to wait another 1weeks to get it fixed. I will update if its fixed. P.s/ if anyone need contact number for department rep guy, Pm me

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12-05-2009, 12:05 AM	#2 (permalink)
getmecoffee Base Member Join Date: Nov 2009 Location: NY Posts: 52 Drives: Nissan 370Z Rep Power: 17	Did that fix the noise?

12-05-2009, 10:11 PM	#3 (permalink)
Silver37 Base Member Join Date: Nov 2009 Location: US Posts: 21 Drives: G37S, Nissan Maxima Rep Power: 17	Yeah....that would be the first actual fix that I've heard of on this topic!

12-06-2009, 02:44 PM	#7 (permalink)
USMCASA A True Z Fanatic Join Date: Nov 2009 Location: NC Posts: 1,152 Drives: 09 370z CY M6 Rep Power: 19	i can hear it in my car, sounds almost like a ground issue you would get with an improperly grounded audio system but its faint. i'm gonna call my dealer and see if they have replaced the ecu in my car yet, its an 09, but just picked it up new a week ago.

12-06-2009, 09:03 PM	#8 (permalink)
cab83_750 Track Member Join Date: Apr 2009 Location: CA Posts: 887 Drives: 09 NISSAN 370Z Rep Power: 419	I don't want to sound harsh here.. But merely uneducated. I read a lot of "...we believe it is the ECU......" So cant the owner and/or the dealer just physically loosen the ecu, place it next to the ear and voilà ("it is the ecu").

12-10-2009, 07:07 PM	#9 (permalink)
Silver37 Base Member Join Date: Nov 2009 Location: US Posts: 21 Drives: G37S, Nissan Maxima Rep Power: 17	You Z guys got a fix for this problem yet???? I've been living with the noise for over 2 months now and I'm about to lose it!

12-13-2009, 08:15 PM	#11 (permalink)
Silver37 Base Member Join Date: Nov 2009 Location: US Posts: 21 Drives: G37S, Nissan Maxima Rep Power: 17	Do you hear the noise every day? The days I have it, it's there all day. Other days I don't hear it at all. I'm looking for what's triggering it.

12-17-2009, 12:43 PM	#13 (permalink)
getmecoffee Base Member Join Date: Nov 2009 Location: NY Posts: 52 Drives: Nissan 370Z Rep Power: 17	I hear the noise everyday. My service manage spoke to his advisor, and they came back to me with this: Nissan is aware of the problem Only a small amount of the Z's have the issue (prob not reported enough) *He's willing to replace the ECU; however, he advised to wait until they have a true answer to the cause. For those who have replaced the ECU, has the noise gone away?

12-17-2009, 06:30 PM	#14 (permalink)
Silver37 Base Member Join Date: Nov 2009 Location: US Posts: 21 Drives: G37S, Nissan Maxima Rep Power: 17	The noise wasn't present in my car last Saturday until I flipped on the lights to drive in the rain. The noise came on pretty loud at that point. I'm finding that something is triggering mine to start, and once it has started it won't stop that day.

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