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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

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Old 02-19-2017, 09:23 PM   #1 (permalink)
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Default 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?


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Old 02-19-2017, 10:06 PM   #2 (permalink)
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Welcome.

Have you scanned for any codes?
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Old 02-19-2017, 10:13 PM   #3 (permalink)
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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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Old 02-19-2017, 10:21 PM   #4 (permalink)
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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.
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Old 02-20-2017, 04:36 PM   #5 (permalink)
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Originally Posted by Jerm8664 View Post
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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Old 02-20-2017, 05:57 PM   #6 (permalink)
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Probably a intake leak. Check your AAM CAI.
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Old 02-21-2017, 04:19 PM   #7 (permalink)
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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.
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Old 02-21-2017, 05:35 PM   #8 (permalink)
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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.
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Old 02-21-2017, 10:35 PM   #9 (permalink)
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Gotcha. I don't think he is tuned.
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Old 02-22-2017, 05:38 PM   #10 (permalink)
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Clean throttle bodies valves, the gunk has accumulated.
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Old 02-23-2017, 11:08 PM   #11 (permalink)
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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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Old 02-24-2017, 07:00 PM   #12 (permalink)
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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
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