Starts, almost stalls out, then catches

abdulisraddd · 03-27-2016, 11:47 PM

i have a 14' AUTO with 9k miles and it does this. My mods are stillen g3 and berk res TP'S . I am getting annoyed that it keeps happening.

stansens · 03-28-2016, 08:16 PM

On a car of that age and mileage dirty air filters or a small vacuum leak could be the problem. You might want to check for any pending dtc codes which haven't turned the MIL light on yet. A general going over should turn up the problem but that might be too expensive to have done at a dealer. Let us know what happens and good luck.

Larso1 · 03-28-2016, 09:52 PM

Quote:

Originally Posted by stansens

On a car of that age and mileage dirty air filters or a small vacuum leak could be the problem. You might want to check for any pending dtc codes which haven't turned the MIL light on yet. A general going over should turn up the problem but that might be too expensive to have done at a dealer. Let us know what happens and good luck.

Also, what about a dirty/plugged fuel filter? Just throwing that out there.

FairladyZ40th · 03-29-2016, 01:12 AM

Quote:

Originally Posted by Larso1

Also, what about a dirty/plugged fuel filter? Just throwing that out there.

I was definitely thinking that too haha I'm planning on getting my fuel pump swapped out next week

. Btw the filter is fitted in the pump correct?

Ghostvette · 03-29-2016, 10:25 AM

Quote:

Originally Posted by Larso1

Also, what about a dirty/plugged fuel filter? Just throwing that out there.

Quote:

Originally Posted by FairladyZ40th

I was definitely thinking that too haha I'm planning on getting my fuel pump swapped out next week

. Btw the filter is fitted in the pump correct?

Car doesn't have an inline fuel filter. For this car, regular treatment with a quality fuel system cleaner is a good idea.

I've noticed the air boxes tend to pick up odd stuff, might not be a bad idea to replace air filters and clean out the box.

FairladyZ40th · 03-29-2016, 12:11 PM

Quote:

Originally Posted by Ghostvette

Car doesn't have an inline fuel filter. For this car, regular treatment with a quality fuel system cleaner is a good idea.

I've noticed the air boxes tend to pick up odd stuff, might not be a bad idea to replace air filters and clean out the box.

Yeah I see your logic brother I thought the same exact thing when I used a "powerful/concentrated full fuel system cleaner" in combination with an oil treatment that goes hand in hand with the fuel cleaner. And we'll after using it that's when I began to have issues with my car starting up :/. In summary, I believe the cleaner caused my pump or filter to fail/clog. So honestly I'm a little iffy about using "good quality/concentrated cleaners

. I do agree with you on the air boxes though I've seen more dirt in those that I'd can comfortably tolerate but I guess that's just how these cars are.

Again, I've noticed this problem slightly goes away when I clean my MAF sensors. But I still have issues when I want to accelerate full speed I lose power at 3500 RPMs EVERY time EVERY gear.

paralegal0907 · 03-31-2016, 09:15 PM

I do run Mobil One full synthetic in the car. I ran some cleaner through it on the last fill up. That did not seem to make a difference in the stalling. Maybe I should keep doing it every fill up?

FairladyZ40th · 04-01-2016, 07:56 AM

Quote:

Originally Posted by paralegal0907

I do run Mobil One full synthetic in the car. I ran some cleaner through it on the last fill up. That did not seem to make a difference in the stalling. Maybe I should keep doing it every fill up?

Dude, sea foam your car. I just did that and I swear it nearly did the trick. Just clean out every thing. Intakes, throttles, fuel injectors, MAF sensors and oil and I'd suggest looking into possibly updating your pulley system. Possibly.

Ghostvette · 04-01-2016, 12:14 PM

Quote:

Originally Posted by FairladyZ40th

Dude, sea foam your car. I just did that and I swear it nearly did the trick. Just clean out every thing. Intakes, throttles, fuel injectors, MAF sensors and oil and I'd suggest looking into possibly updating your pulley system. Possibly.

Updating the pulley system won't do a thing for the stalling problem.

Since this car has no inline fuel filter, it is imperative that things are kept clean. I use the small bottle of Lucas Fuel injector cleaner with every tank and I put a can of seafoam in the gas once a month. Some will call this 'overkill', but I've done it on all cars that have no inline fuel filter and it works. No hesitation, good fuel economy through 150k miles (not that fuel economy is an issue for most Z owners). My last car was a 2004 Malibu with a V6, and when I traded it in with 150k on the clock, it still got 36 mpg on the highway....

FWIW...

shaun66 · 03-30-2016, 01:22 AM

Clean the throttle bodies. I cleaned them around 40,000 miles and they were gummed up a pretty good amount. It helps, but it doesn't completely get rid of the rev drop. For me its only noticeable when the motor is hot and its 90+ outside.

axmea? · 04-01-2016, 08:53 AM

Clean your throttle body. Exact issue with my g37. Cleared the headache after. Dealer could not replicate either until another tech took a chance at it. I have not experienced it with the Z.

FairladyZ40th · 04-01-2016, 09:11 AM

Quote:

Originally Posted by axmea?

Clean your throttle body. Exact issue with my g37. Cleared the headache after. Dealer could not replicate either until another tech took a chance at it. I have not experienced it with the Z.

Would you have a diy for cleaning throttle body? Or would you be able to give me some insight as to how to go about cleaning them? Example, using a brush or using a towel? Is water ok or should I use a special spray/chemical? I'm thinking of doing it soon so it's be big help!

SouthArk370Z · 04-01-2016, 11:26 AM

Quote:

Originally Posted by FairladyZ40th

Would you have a diy for cleaning throttle body? Or would you be able to give me some insight as to how to go about cleaning them? Example, using a brush or using a towel? Is water ok or should I use a special spray/chemical? I'm thinking of doing it soon so it's be big help!

More than one TB cleaning DIY on this site. Search is your friend.

axmea? · 04-01-2016, 08:17 PM

Quote:

Originally Posted by FairladyZ40th

Would you have a diy for cleaning throttle body? Or would you be able to give me some insight as to how to go about cleaning them? Example, using a brush or using a towel? Is water ok or should I use a special spray/chemical? I'm thinking of doing it soon so it's be big help!

Cleaning throttle bodies

Throttle body cleaning due to idling issues after a stop.

Cleaned Engine Bay & throttle body

G37 Same thing. Seems like this would be the most helpful.

xxgary81xx · 04-07-2016, 10:39 PM

Can add me to this list. Went to the dealership last month with same issue they recommended changing the battery,which I did. Next day car acted up again. I have a k&n typhoon. I gave the maf'sensor a cleaning and once again now 2wKS later same issue. I went to the dealership again today and they looked at me like I was hearing/seeing things. Has anyone Had any luck luck with any of the recommendations here?

04-01-2016, 08:53 AM	#11 (permalink)
axmea? A True Z Fanatic Join Date: Apr 2012 Location: SoCal Posts: 6,243 Drives: WELL ZED PW 6MT Rep Power: 53242	Clean your throttle body. Exact issue with my g37. Cleared the headache after. Dealer could not replicate either until another tech took a chance at it. I have not experienced it with the Z. __________________ >MyZ's Album< NISMO Convert/ECUTEK/Takeda CAI/F.I. HFC NR CB Carbon/F.I. 34 Row Oil Cooler/4.08 Final Drive /Powertrix+Swifts/Hotchkis/SPL/Whiteline/TWM/Zoom Engineering/EVO-R/AeroJacket Vented CF Fenders + CF Spoiler/Avant Garde-WORK/NST/Morimoto Halo/STi Clear Lenses/Carbon Signal Automotive/RJM Performance/ZSpeed Clutch Flywheel CSC delete

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03-27-2016, 11:47 PM	#1 (permalink)
abdulisraddd Base Member Join Date: Oct 2015 Location: Northridge Age: 32 Posts: 154 Drives: 14 370z SP 7AT Rep Power: 10	i have a 14' AUTO with 9k miles and it does this. My mods are stillen g3 and berk res TP'S . I am getting annoyed that it keeps happening.

03-28-2016, 08:16 PM	#2 (permalink)
stansens Base Member Join Date: Nov 2015 Location: toronto, canada Posts: 146 Drives: 2016, 370z Rep Power: 193	On a car of that age and mileage dirty air filters or a small vacuum leak could be the problem. You might want to check for any pending dtc codes which haven't turned the MIL light on yet. A general going over should turn up the problem but that might be too expensive to have done at a dealer. Let us know what happens and good luck.

03-31-2016, 09:15 PM	#7 (permalink)
paralegal0907 Base Member Join Date: May 2015 Location: Valdosta, GA Posts: 5 Drives: 10 Nissan 370Z Rep Power: 11	I do run Mobil One full synthetic in the car. I ran some cleaner through it on the last fill up. That did not seem to make a difference in the stalling. Maybe I should keep doing it every fill up?

03-30-2016, 01:22 AM	#10 (permalink)
shaun66 Track Member Join Date: Mar 2010 Location: n Posts: 837 Drives: MB 370z 7AT Rep Power: 17	Clean the throttle bodies. I cleaned them around 40,000 miles and they were gummed up a pretty good amount. It helps, but it doesn't completely get rid of the rev drop. For me its only noticeable when the motor is hot and its 90+ outside.

04-07-2016, 10:39 PM	#15 (permalink)
xxgary81xx Base Member Join Date: Oct 2014 Location: hudson county nj Posts: 53 Drives: 2010 370z Rep Power: 11	Can add me to this list. Went to the dealership last month with same issue they recommended changing the battery,which I did. Next day car acted up again. I have a k&n typhoon. I gave the maf'sensor a cleaning and once again now 2wKS later same issue. I went to the dealership again today and they looked at me like I was hearing/seeing things. Has anyone Had any luck luck with any of the recommendations here?