Most bizarre thing happen to me today! Unable to Rev past 2500 RPM!

kdo2milger · 12-14-2009, 04:34 PM

Quote:

Originally Posted by WShade

I see a common denominator. The car will not allow you to over rev in a higher gear from a stop and smoke the clutch.

Case closed

Now its time for someone to go out and try it to disprove the theory. Any takers?

i nominate you!

GT Motoring · 12-14-2009, 04:47 PM

Yeah I would scan it to be safe, but it seems like it went in to limp mode.

Regardless driving the car would be fine, nothing that would need a tow.

It makes it so you cannot rev it high, but 2500 should be enough to drive it around.

NYBladeZ · 12-14-2009, 07:59 PM

had this happen to me once out of the blue, freaked me out since I had less that 2000 miles on her at the time. Turned off the motor and restarted and it went away and didn't happen again...for now.

bloodo · 12-14-2009, 10:07 PM

Quote:

Originally Posted by AK370Z

Thanks for your input.

I can def relate to that. Thank you for posting this. I did the almost the same thing. I kinda punched the gas pretty quick thinking I was in 1st but I was really in 2nd. Any issues afterward?

No issues at all. Never noticed any different after that.

Pharmacist · 12-14-2009, 10:32 PM

why would the car hit limp mode if starting from a wrong gear? what's the purpose that would make the engineers program such a feature?

WShade · 12-14-2009, 11:07 PM

Its not a programmed feature.

AK370Z · 12-14-2009, 11:08 PM

Ok.. just got done driving the car for more than half an hour. I made a new friend and it's the Rev Limiter

. I took the car to 7000+ RPM few times, quick downshift 5-4-3, thrashed it around and EVERYTHING is FINE! It's running perfectly.

I have no clue why this happened. Looks like few others has encountered the same problem. For some, it's solved by shutting the car off and restarting. For me, it was putting the car in reverse (which makes me lean more convinced that my issue was a gear/clutch issue).

Good thing is car is running 100% with no issues!

semtex · 12-15-2009, 07:33 AM

Glad to hear everything is running normally, AK.

370Zsteve · 12-15-2009, 07:43 AM

Quote:

Originally Posted by AK370Z

Ok.. just got done driving the car for more than half an hour. I made a new friend and it's the Rev Limiter

. I took the car to 7000+ RPM few times, quick downshift 5-4-3, thrashed it around and EVERYTHING is FINE! It's running perfectly.

I have no clue why this happened. Looks like few others has encountered the same problem. For some, it's solved by shutting the car off and restarting. For me, it was putting the car in reverse (which makes me lean more convinced that my issue was a gear/clutch issue).

Good thing is car is running 100% with no issues!

As someone else commented, I would have the dealer check the codes to see if anything comes up. Otherwise, drive, baby, drive.

Moral of the story: The more electronics that get engineered into a vehicle, the more unexplained "it was a vibrantly shaky gluck-gluck-gluck noise" issues to be had.

DIGItonium · 12-15-2009, 07:45 AM

Sounds good you didn't have anymore issues... but something that may be related.

Is anyone hearing 3 clacking sounds on startup as if it is coming from the clutch? It's sorta like the sound when you're about to bog down your car, but this is with engine start.

Lug · 12-15-2009, 08:41 AM

Quote:

Originally Posted by 370Zsteve

Oh there's a +1 rep if I ever saw one.

Finally! It's about time my valued contributions to the forum are recognized! You sir are smart, well mannered, obviously highly educated, and probably hot with the ladies. I salute you.

kannibul · 12-15-2009, 08:52 AM

Quote:

Originally Posted by WShade

I see a common denominator. The car will not allow you to over rev in a higher gear from a stop and smoke the clutch.

Case closed

Now its time for someone to go out and try it to disprove the theory. Any takers?

Might explain also why 7AT owners haven't had this happen?

ChrisSlicks · 12-15-2009, 09:04 AM

Quote:

Originally Posted by semtex

So, it looks like the only thing unusual is that AK started off in 2nd instead of 1st? I wonder if he (or anyone else) would be able to replicate the problem by simply starting off the line in 2nd.

I do this fairly often, no clunking or issues.

It almost sounds like the ECU lost track of one of the sensors, like the camshaft height position sensor, and decided to completely shut down VVEL. If that was the case I would have totally expected that to throw a code and trigger the CEL.

Forrest · 12-15-2009, 09:59 AM

there is a valet mode?

Gamedog · 12-15-2009, 10:00 AM

This has happened to me and a few other G37's in the past. Happened to me when I was backing up out of a driveway, put in in 1st, and didnt give it enough gas and stalled the car. Started it back up and realized I had about 25% throttle available and couldnt get passed 2500 rpms. Turned it off for about 30 seconds and it started back up and ran fine.

My guess is that its an ecu glitch that happens or something. Happened about a year and a half ago and hasnt happened since. I wouldnt call it "limp mode". I've hit limp mode before during a canyon run and that happens at higher rpms/higher oil temps.

12-14-2009, 04:47 PM	#32 (permalink)
GT Motoring Enthusiast Member Join Date: Nov 2008 Location: Chicago Burbs Posts: 489 Drives: R35 Rep Power: 839	Yeah I would scan it to be safe, but it seems like it went in to limp mode. Regardless driving the car would be fine, nothing that would need a tow. It makes it so you cannot rev it high, but 2500 should be enough to drive it around. __________________ http://www.gtmotoring.com/images/for...r-nagtroc1.gif Zele Authorized USA Dealer Amuse Authorized Distributor 370Z Purchasing Special through GT Motoring www.gtmotoring.com

12-14-2009, 07:59 PM	#33 (permalink)
NYBladeZ A True Z Fanatic Join Date: Apr 2009 Location: New York Posts: 2,158 Drives: Lotus Exige S Rep Power: 20	had this happen to me once out of the blue, freaked me out since I had less that 2000 miles on her at the time. Turned off the motor and restarted and it went away and didn't happen again...for now. __________________ 2009 Carbon Fiber/Red 370z aka Trish: Sports Package, Meisterschaft full catback, Fast Intentions Longtube Headers, Injen Long Tube Intakes, UpRev Tune: Sold 2008 Lotus Exige S Club Racer aka Bella, always leaves me smiling

12-14-2009, 11:07 PM	#36 (permalink)
WShade Track Member Join Date: Jan 2009 Location: San Antonio, TX Posts: 765 Drives: 09 370Z T/S/N Rep Power: 187	Its not a programmed feature. __________________ Q50S Q60 RS400

12-14-2009, 11:08 PM	#37 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	Ok.. just got done driving the car for more than half an hour. I made a new friend and it's the Rev Limiter . I took the car to 7000+ RPM few times, quick downshift 5-4-3, thrashed it around and EVERYTHING is FINE! It's running perfectly. I have no clue why this happened. Looks like few others has encountered the same problem. For some, it's solved by shutting the car off and restarting. For me, it was putting the car in reverse (which makes me lean more convinced that my issue was a gear/clutch issue). Good thing is car is running 100% with no issues! __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

12-15-2009, 07:33 AM	#38 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 53 Posts: 5,995 Drives: People to drink Rep Power: 32	Glad to hear everything is running normally, AK. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

12-14-2009, 10:32 PM	#35 (permalink)
Pharmacist A True Z Fanatic Join Date: May 2009 Location: Toronto, Ontario Posts: 1,249 Drives: 09 370z Sport 6MT Rep Power: 18	why would the car hit limp mode if starting from a wrong gear? what's the purpose that would make the engineers program such a feature?

12-15-2009, 07:45 AM	#40 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Sounds good you didn't have anymore issues... but something that may be related. Is anyone hearing 3 clacking sounds on startup as if it is coming from the clutch? It's sorta like the sound when you're about to bog down your car, but this is with engine start. __________________

12-15-2009, 09:59 AM	#44 (permalink)
Forrest Track Member Join Date: Mar 2009 Location: california 707! Posts: 677 Drives: 09 370z Blk 6mt sprt Rep Power: 258	there is a valet mode? __________________ my pictures http://www.the370z.com/members/forrest-albums-370z.html

12-15-2009, 10:00 AM	#45 (permalink)
Gamedog Base Member Join Date: Feb 2009 Location: Riverside, CA Posts: 21 Drives: 08 Infiniti G37S Rep Power: 16	This has happened to me and a few other G37's in the past. Happened to me when I was backing up out of a driveway, put in in 1st, and didnt give it enough gas and stalled the car. Started it back up and realized I had about 25% throttle available and couldnt get passed 2500 rpms. Turned it off for about 30 seconds and it started back up and ran fine. My guess is that its an ecu glitch that happens or something. Happened about a year and a half ago and hasnt happened since. I wouldnt call it "limp mode". I've hit limp mode before during a canyon run and that happens at higher rpms/higher oil temps. __________________ G37S:\|:6MT TEAM OUTCAST

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