High rpm miss

Dart7383 · 05-09-2018, 07:44 PM

So, I was stuck driving my '13 Nismo all winter. It got four solid months of boring commuter duty. 40 miles per day of cruising 45-65mph. I took it out for some fun last week, and I cant get it to rev. It acts like I hit the rev limiter, but this happens somewhere between 4500 and 7000 rpm. I had a set of oem spark plugs, so I put new plugs in it. I cleaned the mafs and throttle bodies. Nothing changed. It runs fine from idle to 4k. I am thinking possible fuel starvation? It is not pulling any codes. It has Stillen gen3 intakes, beluga short tails, and a south bend clutch. The old spark plugs all looked fine, I didn't notice any clues there. Does this sound familliar to anyone? Any thoughts would be appreciated

cv129 · 05-09-2018, 09:18 PM

Only happens under hard acceleration, or even when you just rev it in neutral?

Dart7383 · 05-09-2018, 09:19 PM

It happens only under hard acceleration

cv129 · 05-09-2018, 10:17 PM

Did the dash light up when it happend? And was it like hiccup? If so, possibly "low" brake fluid. Just meeting the minimum required amount isn't enough.

Spooler · 05-09-2018, 11:26 PM

Mine has done this one time. I shut the car off, no change. What I did was to disconnect both Throttle body connections and re-connected them with the engine off. It solved the problem. It's like I had a dead pedal for some reason.

Justint5387 · 05-10-2018, 10:32 AM

Is the tank full? Did you hit fuel starve?

elhombre · 05-10-2018, 11:07 AM

Have you checked you coil packs? Are you getting any specific cylinder misfire codes?

This same thing happened on my wrx, it would basically hit a "rev limiter" at about 5500 rpm...

mults · 05-10-2018, 11:57 AM

Fuel starvation typically happens during higher speed turns. Never heard of it happening on hard acceleration; although if the tank is low enough I could see it happening.

When you say "hard acceleration" are you "mashing" the pedal or gradually increasing it? If there are no codes, I can't imagine what it may be. Try putting a bottle of Sea Foam in it. There may have been some carbon build-up (during the winter daily driving) in the cylinders/valves that may be the problem. I've been using Sea Foam for A LOT of years with great results.

Let us know if you find anything...

SouthArk370Z · 05-10-2018, 12:20 PM

It's confusing that no DTCs have been thrown. Make sure you are using the proper OBD Mode to check for DTCs (your reader should do that automatically but it's all I can think of).

How you checked your fuel? You may have gotten some bad gas.

NorthStyle · 05-10-2018, 10:21 PM

May sound silly, but ave you tried repeating it with traction control turned off? Since I've had my car tuned, anytime I try revving it out the car cuts out due to the traction control going off, sometimes even without the light flashing.... turn it off, and no issues whatsoever. Had it checked and confirmed by Seb (SpecialtyZ).

Ventruck · 05-10-2018, 11:51 PM

Quote:

Originally Posted by NorthStyle

May sound silly, but ave you tried repeating it with traction control turned off? Since I've had my car tuned, anytime I try revving it out the car cuts out due to the traction control going off, sometimes even without the light flashing.... turn it off, and no issues whatsoever. Had it checked and confirmed by Seb (SpecialtyZ).

I've had this too. In my particular case it seems like there's a certain point where too high of a response setting will fudge with the traction control. Turn off VDC and and it becomes a non-issue.

Dart7383 · 05-11-2018, 11:30 PM

So, I was able to get out and do a little more testing tonight (on a fresh full tank of 93 octane). I also got a much better scan tool. I was able to find a stored code in the abs computer for a low battery. I checked the battery and cleared the code. The problem only happens when the transmission is in S mode. I drove it around with traction on and off in normal mode and had no problems. It happened in S mode regardless of the traction control setting. I guess that Ill be leaving it off while I figure this out. Thanks for all of the help, I'm off to search about S mode.

05-09-2018, 07:44 PM	#1 (permalink)
Dart7383 Base Member Join Date: Jul 2017 Location: Illinois Posts: 3 Drives: '13 Nismo 370z wt m6 Rep Power: 8	High rpm miss So, I was stuck driving my '13 Nismo all winter. It got four solid months of boring commuter duty. 40 miles per day of cruising 45-65mph. I took it out for some fun last week, and I cant get it to rev. It acts like I hit the rev limiter, but this happens somewhere between 4500 and 7000 rpm. I had a set of oem spark plugs, so I put new plugs in it. I cleaned the mafs and throttle bodies. Nothing changed. It runs fine from idle to 4k. I am thinking possible fuel starvation? It is not pulling any codes. It has Stillen gen3 intakes, beluga short tails, and a south bend clutch. The old spark plugs all looked fine, I didn't notice any clues there. Does this sound familliar to anyone? Any thoughts would be appreciated

05-09-2018, 09:18 PM	#2 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,236 Drives: 09 Nismo, 16 Nismo Rep Power: 163995	Only happens under hard acceleration, or even when you just rev it in neutral? __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

05-09-2018, 10:17 PM	#4 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,236 Drives: 09 Nismo, 16 Nismo Rep Power: 163995	Did the dash light up when it happend? And was it like hiccup? If so, possibly "low" brake fluid. Just meeting the minimum required amount isn't enough. __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

05-10-2018, 11:57 AM	#8 (permalink)
mults A True Z Fanatic Join Date: Aug 2011 Location: Cleveland, OH Age: 69 Posts: 1,830 Drives: 2010 (40th) #706 Rep Power: 16886	Fuel starvation typically happens during higher speed turns. Never heard of it happening on hard acceleration; although if the tank is low enough I could see it happening. When you say "hard acceleration" are you "mashing" the pedal or gradually increasing it? If there are no codes, I can't imagine what it may be. Try putting a bottle of Sea Foam in it. There may have been some carbon build-up (during the winter daily driving) in the cylinders/valves that may be the problem. I've been using Sea Foam for A LOT of years with great results. Let us know if you find anything... __________________ mults 40th Anniversary 'Z', 312.06HP/260.58TQ (Dynosty EcuTek Tune) Build Date/Number: 1/27/2010 #706 Berk HFC + CBE, R2C CAI, Clear Bra, Cleveland Z Club

05-10-2018, 12:20 PM	#9 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	It's confusing that no DTCs have been thrown. Make sure you are using the proper OBD Mode to check for DTCs (your reader should do that automatically but it's all I can think of). How you checked your fuel? You may have gotten some bad gas. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

05-09-2018, 09:19 PM	#3 (permalink)
Dart7383 Base Member Join Date: Jul 2017 Location: Illinois Posts: 3 Drives: '13 Nismo 370z wt m6 Rep Power: 8	It happens only under hard acceleration

05-09-2018, 11:26 PM	#5 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,834 Drives: 2013 Nismo 370z Rep Power: 2684392	Mine has done this one time. I shut the car off, no change. What I did was to disconnect both Throttle body connections and re-connected them with the engine off. It solved the problem. It's like I had a dead pedal for some reason.

05-10-2018, 10:32 AM	#6 (permalink)
Justint5387 Base Member Join Date: Aug 2014 Location: Bay Area, CA Posts: 188 Drives: 2016 370z Silver 6MT Rep Power: 12	Is the tank full? Did you hit fuel starve?

05-10-2018, 11:07 AM	#7 (permalink)
elhombre Base Member Join Date: Feb 2016 Location: CT Posts: 93 Drives: 2009 370z Rep Power: 145	Have you checked you coil packs? Are you getting any specific cylinder misfire codes? This same thing happened on my wrx, it would basically hit a "rev limiter" at about 5500 rpm...

05-10-2018, 10:21 PM	#10 (permalink)
NorthStyle A True Z Fanatic Join Date: Aug 2015 Location: Deutschland + SC/FL USA Posts: 1,259 Drives: 2011 370Z Nismo Rep Power: 24277	May sound silly, but ave you tried repeating it with traction control turned off? Since I've had my car tuned, anytime I try revving it out the car cuts out due to the traction control going off, sometimes even without the light flashing.... turn it off, and no issues whatsoever. Had it checked and confirmed by Seb (SpecialtyZ).

05-11-2018, 11:30 PM	#12 (permalink)
Dart7383 Base Member Join Date: Jul 2017 Location: Illinois Posts: 3 Drives: '13 Nismo 370z wt m6 Rep Power: 8	So, I was able to get out and do a little more testing tonight (on a fresh full tank of 93 octane). I also got a much better scan tool. I was able to find a stored code in the abs computer for a low battery. I checked the battery and cleared the code. The problem only happens when the transmission is in S mode. I drove it around with traction on and off in normal mode and had no problems. It happened in S mode regardless of the traction control setting. I guess that Ill be leaving it off while I figure this out. Thanks for all of the help, I'm off to search about S mode.

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