Nissan 370Z Forum

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-   Nissan 370Z General Discussions (http://www.the370z.com/nissan-370z-general-discussions/)
-   -   Why Did My Z, Keep Revving? Video. (http://www.the370z.com/nissan-370z-general-discussions/13824-why-did-my-z-keep-revving-video.html)

MightyBobo 02-05-2010 12:25 AM

Bleh, I knew it was a position sensor of some sort...too many new ones in every car to diagnose anymore lol. Glad it was a simple fix though :)

IcedZ 02-05-2010 07:12 AM

But why did it only happen to me twice, on two cold days, and never again? If a sensor is bad, it's bad. It shouldn't be weather dependent.

semtex 02-05-2010 07:58 AM

Quote:

Originally Posted by TheWeatherman (Post 387931)
Okay, here's the latest update, and hopefully the final one. First, Nissan sent down their Quality Control Engineer to look at the vehicle. He was happy because he was able to duplicate the randomly revving engine. After taking it out, taking vids, pictures and logging all information into his computer, he said he was sure of the problem. Any guesses?

From his analysis, he's went with malfuntioning clutch and neutral position sensors for the.... Synchro Rev Match. There ya go! Those both were replaced, and so far, wallah! No more problems with the revving engine.

I would like to thank the Quality Control Engineer, Nissan Corporate, Nissan Japan, and Russ Darrow Nissan for the prompt and excellent service. Everyone explained everything to me to a tee. They also completely detailed my car since I only take it out when it's completely dry, and they had it out in the salt. That was an extra touch that really made me happy.

Wrap-up... No stuck throttle, a problem that was fully logged and closely reviewed in Japan's engineering headquarters. Should this ever happen to any of you, it seems to be one or both of those sensors. It's great to have both the 2009 Infiniti FX35 and 2009 370Z back in perfect running order.

To not tarnish Nissan's name and to take down my accusation of a stuck throttle, I'm going to take down that YouTube video if I can figure out how. It's great to see this forum work in such a constructive way. By everyone's input, it made the problem interesting.

Feel free to add anything if you'd wish.

Quote:

Originally Posted by m4a1mustang (Post 388461)
Wow, thought for sure we had ruled it out but whaddyaknow! Glad it was all sorted out and your service experience was a pleasant one!

Gee, I seem to recall someone suggesting that it might be a malfunctioning SRM. :rolleyes:

m4a1mustang 02-05-2010 08:03 AM

Quote:

Originally Posted by semtex (Post 388655)
Gee, I seem to recall someone suggesting that it might be a malfunctioning SRM. :rolleyes:

:shakes head:

semtex 02-05-2010 08:04 AM

Quote:

Originally Posted by m4a1mustang (Post 388657)
:shakes head:

What? Can't admit that someone else was right?

m4a1mustang 02-05-2010 08:05 AM

Quote:

Originally Posted by semtex (Post 388659)
What? Can't admit that someone else was right?

Well you had an e-attitude about it... manners! :stirthepot:

semtex 02-05-2010 08:20 AM

You're damn straight I have an attitude about it. Go back and review the thread starting with post #23, where bullitt5897 first suggests that it might be SRM. A bunch of guys including the OP immediately poo-poo the idea, I chime in and say hey, instead of debating this to death, why don't you just turn SRM off and see what happens? I mean, it's a simple push of a button, it's not like you have to break any tools out. I even go as far as to clarify that while I agree that SRM wouldn't account for this behavior if it's functioning as designed, that doesn't discount the possibility of a malfunctioning SRM being the culprit (post #35). So does he ever try it? Nope. So arrogant and self-assured he is of his logic that he can't bring himself to just push a button to give it a try and rule out the possibility that his SRM is malfunctioning. So, you want to talk about e-attitude? That kind of pig-headedness is the epitome of attitude, IMO. TW says it's great to see this forum work in such a constructive way. Well I'm glad he feels that way. But personally, I found his attitude downright frustrating and, in light of the confirmation that it was SRM all along, foolish and anything but constructive. And if it's rude of me to say so, then so be it. I don't give a sh*t. Flame away.

MightyBobo 02-05-2010 08:23 AM

He's killed men for less, m4a1.

semtex 02-05-2010 08:25 AM

Quote:

Originally Posted by MightyBobo (Post 388675)
He's killed men for less, m4a1.

:icon18: Oh I have not! Sheesh! :rofl2:

m4a1mustang 02-05-2010 08:27 AM

Quote:

Originally Posted by semtex (Post 388668)
You're damn straight I have an attitude about it. Go back and review the thread starting with post #23, where bullitt5897 first suggests that it might be SRM. A bunch of guys including the OP immediately poo-poo the idea, I chime in and say hey, instead of debating this to death, why don't you just turn SRM off and see what happens? I mean, it's a simple push of a button, it's not like you have to break any tools out. I even go as far as to clarify that while I agree that SRM wouldn't account for this behavior if it's functioning as designed, that doesn't discount the possibility of a malfunctioning SRM being the culprit (post #35). So does he ever try it? Nope. So arrogant and self-assured he is of his logic that he can't bring himself to just push a button to give it a try and rule out the possibility that his SRM is malfunctioning. So, you want to talk about e-attitude? That kind of pig-headedness is the epitome of attitude, IMO. TW says it's great to see this forum work in such a constructive way. Well I'm glad he feels that way. But personally, I found his attitude downright frustrating and, in light of the confirmation that it was SRM all along, foolish and anything but constructive. And if it's rude of me to say so, then so be it. I don't give a sh*t. Flame away.


Well, I thought you were directing it at me. I just want to make it clear that I don't roll that way. If you have an opposing opinion I will hear you out and if you are a constructive member of the forum (and you are) I will always respect your position.

I understand what you're saying about the OP... The battery disconnect was an issue with me.

But that aside, I am not afraid to admit I was wrong. You and Bullitt were right. I didn't think it could have been SRM based on my experiences with the system, but it was.

m4a1mustang 02-05-2010 08:28 AM

Quote:

Originally Posted by MightyBobo (Post 388675)
He's killed men for less, m4a1.

:icon18:

semtex 02-05-2010 08:35 AM

Btw, TW -- in spite of my admittedly snarky tone above (I haven't had my coffee yet), I am happy for you that you got this fixed. I'm sure it was annoying that your car did what it did, not to mention a little unnerving. In fact, I think this confirmed diagnosis is quite significant in that it's the first confirmed incident of SRM malfunctioning (isn't it?). To be honest, I'm quite surprised that we haven't seen more cases of SRM malfunctioning sooner. It's new technology, after all, and the 09 370Z is the first implementation of this new tech. When I got my Z with the sport pkg., part of me felt that I was taking a big gamble getting a car with a brand new feature that isn't on any other cars yet. I have to say that overall I'm very pleased with how well SRM has held up after owning my Z for over a year. But now that we have our first confirmed case of SRM going bad, we'll need to keep a more watchful eye on this, I think.

HKYStormFront 02-05-2010 08:42 AM

Quote:

Originally Posted by MightyBobo (Post 388675)
He's killed men for less, m4a1.

hahahaha:icon18::icon18:

glad it's fixed, regardless of who had the right guesses on here

MightyBobo 02-05-2010 08:48 AM

Theres no shame in being "wrong" on this issue - there are multitudes of potential problems. Although I do question the people who thought it was something major immediately - always start cheap and work your way towards expensive :)

TheWeatherman 02-05-2010 08:49 AM

Quote:

Originally Posted by semtex (Post 388686)
Btw, TW -- in spite of my admittedly snarky tone above (I haven't had my coffee yet), I am happy for you that you got this fixed. I'm sure it was annoying that your car did what it did, not to mention a little unnerving. In fact, I think this confirmed diagnosis is quite significant in that it's the first confirmed incident of SRM malfunctioning (isn't it?). To be honest, I'm quite surprised that we haven't seen more cases of SRM malfunctioning sooner. It's new technology, after all, and the 09 370Z is the first implementation of this new tech. When I got my Z with the sport pkg., part of me felt that I was taking a big gamble getting a car with a brand new feature that isn't on any other cars yet. I have to say that overall I'm very pleased with how well SRM has held up after owning my Z for over a year. But now that we have our first confirmed case of SRM going bad, we'll need to keep a more watchful eye on this, I think.


For some reason, I never even thought of turning off the SRM. I just wanted to quickly see if I could at least stop it, and get a good video for all of us to see. It was a really fun topic of discussion though! The age of cell phone video has worked in a very constructive way! Boy does my Z look great freshly waxed! Stupid Winter. Go away already! Thanks for your kind comments on the Z being all fixed. Should something happen on this subject again, I'd be the first to let you all know... Hopefully with a good video as well.


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