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2016 GTR Intermittent No Start


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#1 znergy96

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Posted 29 September 2020 - 05:52 PM

Has anyone experienced the issues as attached in the video? Usually only happens on hot start ups.

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#2 Mickwitchy

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Posted 29 September 2020 - 07:33 PM

Is this a bone stock GTR? Are you on Flex fuel? 

 

I notice you've washed the car? By chance, did you wash down the engine bay?


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DIY so far - Apart from tune...


#3 znergy96

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Posted 29 September 2020 - 09:09 PM

it has normal bolt on and upgraded turbos. This is on flex which is measuring e77 at the moment. This only happens after hot starts. I just drove home from work about ten miles and it sat for two hours and it took about thirty tries to start it. and yes i drove it home in the rain


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#4 Mickwitchy

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Posted 29 September 2020 - 09:17 PM

I wouldn't assume water has anything to do with it then. How hot is ambient? Can you log fuel temp? Perhaps the Ethanol is boiling in there? 

 

That vid shows short cranking. What happens if you let the car continue to crank? 

 

What happens if you let the fuel pumps prime for longer before starting (without letting fuel pumps finish priming)?

 

Can you log fuel pressure when cranking? 


Edited by Mickwitchy, 29 September 2020 - 09:18 PM.

2015 Premium
HKS GT1000 turbo kit
Greddy crossflow intercooler/BOVs
Fore Innovations triple pump setup (Visconti hardwire kit)

Visconti fuel pressure monitoring
Speedflow post filter
VRSF 3" intakes
ID1700s
Willall Ti resonated midpipe, TOG 3" Ti catback
Torque solutions BMCS
Radium triple catch cans
ETS ball retainer and T1 trans brace (1K soon...)
Kaps AWD controller
ECUTEK SD tune w/ 4bar Map sensor w/ Visconti flex fuel
DIY so far - Apart from tune...


#5 znergy96

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Posted 29 September 2020 - 09:22 PM

I had this issue before and started letting the pumps prime for 5 secs before starting and the issue went away for a week or so. I can prime them and started and the same issue happens. I can hold the throttle down while trying to start and it will try to fire longer but will not start. I don't believe it is a fuel delivery issue due to the garage smelling of fuel. I am thinking to switching to pump gas but am not sure if that is the concern. I enjoy the ethanol, but it is super embarrassing to have this car not start in a public place. any ideas would be appreciated for a new owner


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#6 Mickwitchy

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Posted 29 September 2020 - 09:28 PM

How long have you owned the car? And how long has it been on ethanol for? Is it possible it's been run solely on E for an extended period of time and now the pre or post fuel filters need replacing? And possibly the injectors are gummed up?

 

I would be good to see fuel temp and pressure, and injector duty cycle on a log of cranking. But this would ultimately need to be sent to a tuner.

 

Would also be good to know if the issue even exists when 93 is in there


2015 Premium
HKS GT1000 turbo kit
Greddy crossflow intercooler/BOVs
Fore Innovations triple pump setup (Visconti hardwire kit)

Visconti fuel pressure monitoring
Speedflow post filter
VRSF 3" intakes
ID1700s
Willall Ti resonated midpipe, TOG 3" Ti catback
Torque solutions BMCS
Radium triple catch cans
ETS ball retainer and T1 trans brace (1K soon...)
Kaps AWD controller
ECUTEK SD tune w/ 4bar Map sensor w/ Visconti flex fuel
DIY so far - Apart from tune...


#7 znergy96

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Posted 30 September 2020 - 04:41 PM

Thanks for the response. My first thought was to switch to 93 and run a few tanks to see if I had the same issue. I have only owned the vehicle for a few months and it is a one owner car. I plan on contacting the tuner that worked on the vehicle unfortunately they are several states away. I know from my previous vehicles that ethanol will certainly gum some things up, but it seems strange that the vehicle will start cold no problem and runs fantastic only just the strange no start and rattle after short trips. which leads me to wonder if I am causing harm to anything when I am trying to start it with this issue other than heating the starter up. I will switch to 93 in a week or so when I am close to empty and keep you all updated. It is a bit concerning this has not been a previous problem. 


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#8 Mickwitchy

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Posted 30 September 2020 - 06:45 PM

Log what coolant temp sensor is at when car is hot and causing the hot start issues. After that, maybe the car has slightly leaky injector that is worse on hot starts? 

 

This could also just be tune related, potentially.... But if you run E85 religiously, and the previous owner did the same, that may be the issue....


2015 Premium
HKS GT1000 turbo kit
Greddy crossflow intercooler/BOVs
Fore Innovations triple pump setup (Visconti hardwire kit)

Visconti fuel pressure monitoring
Speedflow post filter
VRSF 3" intakes
ID1700s
Willall Ti resonated midpipe, TOG 3" Ti catback
Torque solutions BMCS
Radium triple catch cans
ETS ball retainer and T1 trans brace (1K soon...)
Kaps AWD controller
ECUTEK SD tune w/ 4bar Map sensor w/ Visconti flex fuel
DIY so far - Apart from tune...


#9 znergy96

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Posted 04 October 2020 - 05:52 PM

update: I have spoken with the company that originally tuned the car. They are being extremely helpful and will be assisting me on the concern. Against my better judgement I took the vehicle on a 600 mile round trip this weekend, I have changed over to pump 93. The car did fantastic the whole time we were away until on the ride back. The car had been running for about 2hrs and I was parked at a store getting food. After setting in park for about 20mins idling the car all of a sudden shut off, then I experienced the same symptoms trying to restart it. After 10-15 attempts the vehicle started and we finished the trip home. After arriving home and sitting for an hour the vehicle would not start again. I will do data log as suggested and keep everyone updated with the remedy incase anyone has the same problem in the future. 


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#10 sterod

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Posted 05 October 2020 - 08:10 PM

My guess would be that your fuel pumps are overheating and/or clogged and near failure.


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#11 Slimshady201

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Posted 06 October 2020 - 08:38 AM

What he said ^^^^ Do you have a fuel pressure monitor installed? That would be a big help if it`s fuel problems? Could easily log fuel pressure.



#12 znergy96

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Posted 10 October 2020 - 04:32 PM

So I had another incident while driving and the car actually shut off while moving and would not start back up for several minutes. When the vehicle did start it felt like it was in limp mode and would not go above 5 miles per hour. After about 5 minutes the vehicle shut off again and restarted normally and I was able to proceed home. I data logged yesterday and let the vehicle just idle in my driveway and after 20minutes or so I walked outside and noticed it was shutoff. I'm not to familiar with datalogging so I'm not sure if it gives you any info when at idle and in park. I read the log and noticed the rpms started to drop along with the MAF reading. does anyone have any input on this or help. I'm starting to lose confidence and really don't even want to drive the car anymore. I have a Certified GTR tech at one of the dealerships I run, but we rarely see a GTR and certainly have not seen one with the tune that mine has. I was hoping someone has seen a similar problem before. I can send the data logs as well if needed. thanks for all the help in advance 


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#13 Slimshady201

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Posted 11 October 2020 - 12:40 AM

So no CEL or DTC`s when this is happening?



#14 alexdavis

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Posted 11 October 2020 - 02:17 AM

Look for a bad relay that powers the aftermarket fuel pumps...and/or wiring to it.

 

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#15 znergy96

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Posted 11 October 2020 - 07:30 AM

No dtc and will replace the relay for the hell of it incase its intermittent 


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#16 Slimshady201

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Posted 11 October 2020 - 09:25 AM

Like Alex suggested don`t forget to check your hardwire kit. It`s most likely a Visconti and there are two versions.

 

What fuel pumps do you run?



#17 Ben-Stian

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Posted 11 October 2020 - 12:19 PM

Did the fuel trims go to max (about 20%) just before it died?


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#18 znergy96

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Posted 13 October 2020 - 04:44 PM

Injector DAMS  90MM Midpipe

Armytrix Valvetronic Exhaust
Alpha Performance GT-R 90mm Cast downpipes
Alpha performance Street Front Mount intercooler
Injector Dynamics 1050X Fuel injectors
T1 Race Development Flex Fuel Kit
T1 Race Development fuel pressure sensor kit
Speed Density Conversion Kit
DeatchWerks 340 lph DW300X Compact Dual Fuel Pumps
Boostlogic 750X gen2 Upgraded Turbos
Alpha R35 Carbon fiber cold air intake with MAF blockoff plates
Alpha Performance 4 BAR MAP Sensor

HKS Iridium Spark plugs M-Series

 

Above are the mods I am aware of and I am not aware about the fuel pressure. ynami


Edited by znergy96, 13 October 2020 - 04:49 PM.

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#19 Mickwitchy

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Posted 14 October 2020 - 05:49 AM

Is this tuned on Cobb or ECUTEK. If ECUTEK, you can use the fuel pump tool to activate when the symptoms appear...


2015 Premium
HKS GT1000 turbo kit
Greddy crossflow intercooler/BOVs
Fore Innovations triple pump setup (Visconti hardwire kit)

Visconti fuel pressure monitoring
Speedflow post filter
VRSF 3" intakes
ID1700s
Willall Ti resonated midpipe, TOG 3" Ti catback
Torque solutions BMCS
Radium triple catch cans
ETS ball retainer and T1 trans brace (1K soon...)
Kaps AWD controller
ECUTEK SD tune w/ 4bar Map sensor w/ Visconti flex fuel
DIY so far - Apart from tune...


#20 GTRHOLIC

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Posted 14 October 2020 - 10:04 AM

Your pumps are hard wired ? I have a feeling that your primary pump works on high mode all the time so it gets hot then car shuts off.. this explains the normal restart after sometime (cooling down)


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