Bullit, it's just that I've spent 2 months bringing my FX back and forth from the dealer for the same thing. The FX has now been gone for well over a week. That's why I'm ticked. I should be. I spend more of my free time running these cars to the dealer than I have time for. The Infiniti dealer is over 45 minutes for my house, 1 way, and has been in 4 times for the same nav screen thing because Infiniti told the dealer NOT to put in a new screen. I'm sorry. 5 because the first one was a diagnosis. Not to mention the problem with my XM radio (9 hours of total time to get that straightened out) since they replaced the AV unit (used from California. Nice. His name was Mark), dead steering column, loose center console, a screw caught rolling around in the hatch door that they can't find, Bridgestone tires that had to all be replaced because they were loosing huge chunks of tread, a transmission that had to be reprogrammed for huge flares and thuds, and to cap it all off... The tech accidently banged my door into the metal rack. Now the door is being repainted. Get it? The car has been in 14 times in the past year for things OTHER than oil changes. (And it's not me being a whiney owner. Chunks of my tires were coming off and I could hear them smacking the wheel wells.) Of course I'm bothered. The FX is still in the shop, now I have to bring this thing in. That's gas money and time I'd like back. 14 trips= 1120 miles, 26 hours not including traffic. That's just the FX.

The Z has only been in once for the oil changes, grinding second gear, and that high pitched noise. Luckily that dealer is only 20 minutes from me.

Of course I'm bothered. While the Infin was in, I thought I'd enjoy the Z. I did, it just broke and wanted to show you. Next time I'll just not say anything and you can figure out what wrong and how I feel about it. Calm down Bullit. I'm just sharing the information.

Oh, the FX is a 2009 35 with 15,000 miles on it.

I respect all of you who haven't bashed me for just posting a video. I just wanted to share and ask what you thought before I bring it in to the dealer. Thought it would be a fun discussion.

TW, Im not bashing you bro. not in the least bit. Its harder for us to watch videos when people are complaining and it often gets a negative connotation associated with it when you do that. Like I said I didnt want to sound like an a$$ for saying that stuff its just that type of tone and stuff bugs the sh1t out of me and especially someone asking for help. You know its like a hey dude calm down kind of thing.

I understand the dealership deal. I believe you just have a sh1tty service dept. at the dealer to be honest. It should not have taken that long to fix those kinds of problems and to still be dealing with them. If it were me I would sit down with the service manager and have a lil talk. For instance the dealer put my z on a lift wrong and put a small bend in my side skirts. I saw it and talked to the manager and now I am getting free nismo ones. They should atleast be compensating you at the very least. I hate to hear what is going on with your FX but I will say this... that is a completely different platform and should be kept separate from the Z. I hope you have a Nissan dealer closer to you and be upfront with them with I want a no nonsense fix for this like yesterday. It always works for me but then again I call the shops and talk to them every other day to get status updates. It may seem like alot of work but I know my stuff is getting done correctly. I also talk to the techs that work on my car personally and if I dont like them I ask for another tech. Remember you are the customer get what you want!

Again, nobody is bashing you for posting the video. In fact we encourage you to do it when you have problems, as it helps us to help you. Please keep us updated on the trouble shooting and hopefully we can help you solve the issue without you having to drive to the dealer. :tup: your a good guy keep posting!

It's fine Bullitt. It was just frustration that's been building up. The reason I bought two Nissan products is the fact that I've had nothing but luck with the brand. It's like the complete opposite side of the spectrum from my previous models! Suprising! I'll keep ya updated though.

I'm treating it like a "let's take a stab at what's wrong." The correct guess will win... A post from me talking about what was wrong! :icon17: I just find it fun. I was a little annoyed in the video. I was just "thinking out loud" in the video. I work in TV, so I'm used to just talking to noone. Wait, is that a problem? :wtf2:

Ladies and gentleman the weatherman is confirmed as crazy!:eekdance: lol :roflpuke2:

There are sensors in the 3 neutral positions as well which it uses to start revving based on which gear pair you are heading for. But in this case it didn't look like SRM behavior at all because the RPM's kept creeping up slowly, normally SRM hits the target RPM exactly and doesn't fluctuate.

By the way... I still absolutely love these cars! My Infiniti as well.

You do? hows the ringing sound going mate?

- Ty

I can wiggle my stick all I want in the neutral gate with no SRM activity. Others have reported some triggering though. Mine will not rev match until I make a definitive move into a respective gear gate FWIW...

Strange, mine revs up as I push the stick left through the neutral zone (watch out for Romulans). For example if I'm cruising in 6th and I move straight up the revs hold where they are, then if I move it to center neutral it will rev some more (anticipating a shift to 3rd or 4th), and if I go all the way left it will rev way up anticipating a shift to 1st or 2nd. Then when I actually start moving from neutral to a gear it will lock onto the actual RPM it needs for that gear ratio which may cause it to rev up a little higher still in the case of 1, 3, 5. In neutral it only does this for about 2 seconds before it gives up on you.

I've seen other people documenting this behavior, including a video so I know I'm not crazy.

Well, I'm bringin' the ol' girl in. I'll keep ya updated. I just can't wait to take it out again! It's like a good excuse! "Darn. Gotta take it in." :icon17:

Yeah..I've seen others mention this before too. I would tend to think mine is operating correctly and the other behavior is not....

Mine does the exact same thing :tup: I think modshack's is broken. you know what they say if everyone else's is different it just maybe yours thats broken! :bowrofl:

Mine is the same.

Mine behaves exactly like yours.


Weatherman, have you ever just tried turning SRM off like someone suggested? You state you know it isn't SRM (and I agree its not how SRM is supposed to work) but it seems such an easy way to test if its the SRM malfunctioning. I work in IT and when we are faced with malfunctioning/faulty systems we eliminate everything we can even if we doubt it could be the problem. Seems like it would take 3 seconds to be sure.

I didn't think to try that LSU. It's in the shop now. I have 2 loaner cars now! Ha ha! One's a Mercedes ML350 and the other is a Chrysler 300M V-6. I have to say that whether it was my Infiniti or the Z, Nissan and my dealers have been very, very nice. If there's something wrong, I can't ask for better service than this all around. I won't have a word on what happened until next week. Thanks for all the input everyone!

Keep us posted on the resolution.

I find this issue a bit disturbing 1) with the Toyota recall ongoing and 2) with the fact that my wife would not be well suited to dealing with this issue if she's behind the wheel. If the revs climbed like that on her, I'd guess she'd end up in another guy's bumper or in a ditch. You guys with 7ATs should be a bit concerned too. It's a no brainer going to neutral or clutching if the revs go bonkers in the 6MT. You'll have to have some quick thinking if it does it to you in the 7AT.

I dunno. That was the first thing I thought of (put it in neutral) when something similar happened in my Mustang (gas pedal got stuck on the floor mat). I put that bad boy in neutral right quick!

But then I'm kinda weird in that I think about emergency situations beforehand, such as when I'm about to cross a bridge, I think briefly about how I would escape from my car if it plunged into the water.

Yeah. :werd:

TheWeatherman, I asked the following just to make sure it's NOT the SRM that's causing this. Though, after watching your video again, I find it VERY bizarre and I blame a faulty accelerator pedal assembly. (possibly). But, I'm still curious, were you able to replicate the above mentioned problem without SRM?



Very weird /\..

I will clear up some confusion with a video that I made yesterday. I don't know why Modshack's SRM doesn't do this but almost all members here can say the same thing about neutral drop with SRM on. Bullit, Chrislicks, M41mustang - I think this is EXACTLY what you guys are trying to explain. Take a look


(sorry for the cheesy forum advertisement at the end :o. I usually get tons of questions in comments section so I explained everything on the video)

As you can see, if I move the shifter from 6th to Neutral, RPM goes up( just enough for 5th gear) and stays there until I pop it to 5th. BUT, if I move the shifter to the left (while staying in neutral), car thinks I want to downshift even further (3 or 4th gear) and REVS the RPM even more. This is a very normal behavior and as mentioned above almost ALL of the 370Z owners with SRM experience this (except modshack). Modshack, maybe this video will show you what we are trying to explain.

As for OP, sorry we kinda got a little off topic. PLEASE keep us posted on what they find out.

Nice demo AK. It makes it pretty clear that Weatherman has a very different issue.

OK, sorry if I missed someone recommending this, but I think you guys are over analyzing. I think its probably as simple as a throttle position sensor either being shot, or needing recalibration. There IS a recalibration method if I remember correctly, in the service manual. I dont have access to it at work, though.

Wow....Personally I would find that behavior VERY annoying. I had no idea you guys were having to put up with that. If mine did that I'd most likely turn it off... Looks like Pushing Tin and I are the lucky ones out of this group...

If you're cruising in 6th, and pop it into neutral (actually letting go of the stock), it will automatically blip the throttle to 4th gears required RPM. It automatically assumes the "minimum amount" it needs to rev to (as in, the highest gear to choose). If you decide to go into 3rd instead, it'll rev even higher of course. Wiggle the shifter around in neutral into the 1/2 gate, and it'll rev to 2nd gear levels. I remember doing this when I was test driving - doing the neutral wiggle is a habit of mine.

But AK was movin' though! Mine does that too just to keep the revs up enough so if you select a lower gear, it doesn't have to rev so dramatically. I'm trying to think... Doesn't it shut itsself off/let the RPM drop if you leave your shifter in the same spot, outside of any gate, without motion after a few seconds? I'm just asking. It's like the car saying, "Okay, no gear selected rev matching? I'm going to leave you idle in neutral." Just a question. Not a fault. My SRM works/(worked :rofl2:) perfectly everytime!

actually with mine i have noticed that if i hammer it for a while when i take it out of gear it will hold revs longer than if i cruise on the highway without shifting for hours and mine acts exactly like ak's. I actually have this wierd habit now that when i'm driving around i will push the clutch in and take it out of gear and hold the stick to the right side to get it to drop revs while i coast. Freaked me out the first time i did it in my neon and the revs didn't drop.

quick question, when your car is coasting in neutral, is your foot on the clutch? I think, if I remember correctly, having your clutch in gives the SRM the signal that you may be engaging a gear, thus causing it to rev up....then again, i could be wrong...I'm at work right now so I can't really try it out, but I think your RPM only goes up when you clutch...

Yeah.. if I pop out of gear and go to neutral with the clutch pedal pressed, SRM will sometimes blip the throttle. But if I just ease out of gear and let off the clutch pedal nothing happens.

So I finally watched the video after coming home. Im sticking with a TPS sensor.

Is this common? For all who think I'm engaging the SRM, remember, my car was at 0 MPH. I even get out of the car at near the end of the video, and I'm still getting over 3,000 RPM. Yeah... a faulty TPS would mean your throttle is messed up. You should've seen it when it was doing over 4,500 RPM. I didn't think of taking a video since I was moving floormats and restarting the car at every intersection. It would rev right up after a restart. Bobo, appreciate the input. Spearfish, you're still the man.

Oh, by the way, my clutch didn't like this little incident very much.

Could be the TPS. There is a procedure to recalibrate the throttle... I'm sure the service department is going to try that.

Completely OT, but you have a good taste in music. :p

Its pretty easy if I remember right - look for the service manuals on the website here. Its a matter of mashing the throttle to 100% and then 0% back and forth, but you need to get it into calibration mode...

I agree with Bobo, sounds like the accelerator pedal position sensor is a viable culprit given these cars are fly by wire throttle.


Section EC (Engine Control System), page 18


ACCELERATOR PEDAL RELEASED POSITION LEARNING
ACCELERATOR PEDAL RELEASED POSITION LEARNING : Description
Accelerator Pedal Released Position Learning is a function of ECM to learn the fully released position of the accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time the harness connector of the accelerator pedal position sensor or ECM is disconnected.

ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement

1.START
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.

If this was the issue, then it wouldn't happen sporadically.

It could due to small fluctuations in the output voltage of the sensor.

haha watch this be related to the ETB buzzing from not being correctly grounded

After reading this thread, I tried the "put the shifter in neutral" while driving, and your right Weatherman, the revs go up as in AK's video but they drop after a few seconds. So it's like SRM is concluding "OK, your not going to continue shifting into a lower gear, no need to keep the revs up" I tried it in 6th, going about 60~70MPH. Shift to neutral and RPM's go up to about 4K RPM, so perfect for a shift to 4th, but too high for a shift to 5th, which is kinda strange I think.

However, non of this explain what happened to The Weathermans car. I sure hope it's not something like what Toyota is dealing with now...

Here's the Toyota problem explained (this is also interesting for all of you who want to know how our electronic throttle pedal works)

UPDATED: Video: In-depth look at Toyota's sticky accelerator — Autoblog

As long as the clutch is pressed in, SRM will try to blip the throttle when the shifter is moved around. The 3 "major" positions are 1/2, 3/4, and 5/6 of course. If you shift to neutral, clutch pressed in, and release the shifter to its dead-center position, SRM will automatically blip to the MINIMUM amount for the highest gear in that position. That'd be 4th gear. If you decide to go into 3rd, it will of course, blip higher. Same goes for 1/2....it will rev to 2nd gear as soon as you slide to the left, but if you go into 1st instead, it will go higher.

Purpose for this is because its not going to assume you want to rev to the LOWER gear automatically, more than likely to save gas Im sure. Its obviously fast enough to catch if you decide to go higher, and blip accordingly.

If you dont want SRM mucking with your RPM's when you move the shifter in the positions, just release your clutch...SRM stops blipping at that point.

OK, that makes sense, thanks for the explanation.

But I did notice that, if you leave the shifter in neutral and you release the clutch, SRM will still hold the RPMs up for a few seconds. Not that is matters though, just an observation.

Correct, it holds it for a moment just incase you decide to press the clutch back in and pop it into gear, but it wont wait forever :). After a moment, it just disables, and no more bliping of the throttle.

Weatherman, let me know what you find out. Mine did the same thing twice. Once per day two days in a row. Mine held at about 2k RPM though, definitely not 3500+. I live in central Florida, so it's not NEAR as cold as you were. I also am over 99% sure it is not SRM. I wiggled the stick in neutral and in and out of gears and let off the clutch in neutral... it was still revving. Both times that this happened it was after a 10+ mile drive on the intersate going about 80. So everything was up to normal operating temperature. Both mornings were cold, but not the coldest that we had. It was definitely bizarre. I cannot get it to repeat anymore now (I'm thinking because it's warmer outside).