370z warm start problem

Jerm8664 · 02-19-2017, 08:23 PM

Hey guys new to the forum but I have searched a bit and haven't found much. I have 7at 2014 Z with a AAM CAI and muffler delete. My car has a problem when it warm starts. It starts up fine on a cold start (first start of the day) but when turned off for 30 minutes -1 hour it sounds like it is going to stall (has stalled twice) and sometimes will sputter. What do you guys suggest?

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Memphis370Z · 02-19-2017, 09:06 PM

Welcome.

Have you scanned for any codes?

Jerm8664 · 02-19-2017, 09:13 PM

Quote:

Originally Posted by Memphis370Z

Welcome.

Have you scanned for any codes?

I haven't scanned but I haven't had any CELs come up as of yet.

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Memphis370Z · 02-19-2017, 09:21 PM

Quote:

Originally Posted by Jerm8664

I haven't scanned but I haven't had any CELs come up as of yet.

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If I'm not mistaken, you could still have codes despite the lack of a CEL.

Jerm8664 · 02-20-2017, 03:36 PM

Quote:

Originally Posted by Jerm8664

Hey guys new to the forum but I have searched a bit and haven't found much. I have 7at 2014 Z with a AAM CAI and muffler delete. My car has a problem when it warm starts. It starts up fine on a cold start (first start of the day) but when turned off for 30 minutes -1 hour it sounds like it is going to stall (has stalled twice) and sometimes will sputter. What do you guys suggest?

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Went to the dealership. No codes and they couldn't replicate the problem.

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Wilson2608 · 02-20-2017, 04:57 PM

Probably a intake leak. Check your AAM CAI.

Elmo370z · 02-21-2017, 03:19 PM

I had the same issue you are talking about. I would purchase a fuel pressure gauge from cjm or z1 to see what your fuel pressure is doing. After checking all the above statements, you or a dealership will have to dive into the horrible fuel tank to check lines or filter strainer. Does the fuel pump whine? Could be a bad check valve, fuel pressure regulator, but with your car being A 14' I don't think those parts could go bad so soon, but then again it could.

Optimiser · 02-21-2017, 04:35 PM

Quote:

Originally Posted by Elmo370z

I had the same issue you are talking about. I would purchase a fuel pressure gauge from cjm or z1 to see what your fuel pressure is doing. After checking all the above statements, you or a dealership will have to dive into the horrible fuel tank to check lines or filter strainer. Does the fuel pump whine? Could be a bad check valve, fuel pressure regulator, but with your car being A 14' I don't think those parts could go bad so soon, but then again it could.

I had this problem although I was boosted and Uprev tuned and it turned out to be the fuel "trims" needed an adjustment.

Elmo370z · 02-21-2017, 09:35 PM

Gotcha. I don't think he is tuned.

DOOMMONKEY777 · 02-22-2017, 04:38 PM

Clean throttle bodies valves, the gunk has accumulated.

Jerm8664 · 02-23-2017, 10:08 PM

I'm not tuned yet and my throttle bodies are clean. I'll have to check the fuel pressure if it acts up again. The dealer said they adjusted the idle slightly and I haven't had a problem since, but then again I haven't driven it much since then.

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DOOMMONKEY777 · 02-24-2017, 06:00 PM

Clean filters????? Then nissan needs to get a hold of a log to see where the problem lies...rather than bumping up idle from 600rpm up to 700 rpm

02-19-2017, 08:23 PM	#1 (permalink)
Jerm8664 Base Member Join Date: Aug 2016 Location: Hurlburt Field Posts: 4 Drives: 14 Nissan 370Z A/T Rep Power: 8	370z warm start problem Hey guys new to the forum but I have searched a bit and haven't found much. I have 7at 2014 Z with a AAM CAI and muffler delete. My car has a problem when it warm starts. It starts up fine on a cold start (first start of the day) but when turned off for 30 minutes -1 hour it sounds like it is going to stall (has stalled twice) and sometimes will sputter. What do you guys suggest? Sent from my iPhone using Tapatalk

02-20-2017, 04:57 PM	#6 (permalink)
Wilson2608 Enthusiast Member Join Date: Dec 2014 Location: Nashville Posts: 301 Drives: Nissan 370Z Sport Rep Power: 10	Probably a intake leak. Check your AAM CAI. __________________ Stillen G3, z1 Intake Manifold, Stillen Headers, Z1 HFC's, Stillen Catback. 330whp 267 ft- lbs tuned at Z1 motorsports.

02-22-2017, 04:38 PM	#10 (permalink)
DOOMMONKEY777 A True Z Fanatic Join Date: Sep 2010 Location: Crooklyn Posts: 1,008 Drives: 370Z 6psd-sport-pkg Rep Power: 20	Clean throttle bodies valves, the gunk has accumulated. __________________ Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you. 537whp/496lb/tq@8-9PSI 93 octane

02-24-2017, 06:00 PM	#12 (permalink)
DOOMMONKEY777 A True Z Fanatic Join Date: Sep 2010 Location: Crooklyn Posts: 1,008 Drives: 370Z 6psd-sport-pkg Rep Power: 20	Clean filters????? Then nissan needs to get a hold of a log to see where the problem lies...rather than bumping up idle from 600rpm up to 700 rpm __________________ Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you. 537whp/496lb/tq@8-9PSI 93 octane

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02-19-2017, 09:06 PM	#2 (permalink)
Memphis370Z A True Z Fanatic Join Date: Sep 2014 Location: Memphis Area Posts: 3,117 Drives: '09 MB Rep Power: 124433	Welcome. Have you scanned for any codes?

02-21-2017, 03:19 PM	#7 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,707 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	I had the same issue you are talking about. I would purchase a fuel pressure gauge from cjm or z1 to see what your fuel pressure is doing. After checking all the above statements, you or a dealership will have to dive into the horrible fuel tank to check lines or filter strainer. Does the fuel pump whine? Could be a bad check valve, fuel pressure regulator, but with your car being A 14' I don't think those parts could go bad so soon, but then again it could.

02-21-2017, 09:35 PM	#9 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,707 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	Gotcha. I don't think he is tuned.

02-23-2017, 10:08 PM	#11 (permalink)
Jerm8664 Base Member Join Date: Aug 2016 Location: Hurlburt Field Posts: 4 Drives: 14 Nissan 370Z A/T Rep Power: 8	I'm not tuned yet and my throttle bodies are clean. I'll have to check the fuel pressure if it acts up again. The dealer said they adjusted the idle slightly and I haven't had a problem since, but then again I haven't driven it much since then. Sent from my iPhone using Tapatalk