300ZX (Z32) Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.

idle issues/Stalls in neutral over 40-50 mph?

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Old Sep 3, 2011 | 11:21 AM
  #1  
paulman592's Avatar
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Joined: Feb 2011
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From: Gainesville, FL
idle issues/Stalls in neutral over 40-50 mph?

hey all,

I've had an issue with my Z for the past month or so, whenever I coast from a speed over 50 mph, the engine will stall out. I will crank the ignition with clutch in and it starts right back up, but something obviously isn't right.

Below 50mph, no stalling. Occasionally there will be problems with idling to high (idle @ 2000RPM) but it eventually corrects itself.

any ideas?

'93 300ZX Convertible, Manual
Old Sep 4, 2011 | 08:10 AM
  #2  
ZLover4Life's Avatar
Encyclopedic Knowledge
 
Joined: Aug 2005
Posts: 3,316
From: Naperville, IL
Your cone filter is improperly installed.

http://s95014253.onlinehome.us/63104/80397.html
Old Jun 17, 2012 | 06:09 PM
  #3  
xcom90's Avatar
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Joined: Dec 2009
Posts: 47
i have stock everything and mines does the same thing. every post i keep reading is taking about fixing it if you have a aftermarket cone filter but i have stock everything and mine still does that any help? my is N/A also
Old Sep 15, 2012 | 01:28 PM
  #4  
SLE-PR's Avatar
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Joined: Dec 2011
Posts: 8
From: Sask, Canada
Same Problem??

Did anyone figure this engine stalling problem yet? I just picked up yet,,,, another '90 NA w/ 5 spd this time and this one is stalling too, when it is allowed to coast in neutral. It also wants to rev about 1500 rpm around town when pulling up to stop signs.............any ideas on that one???

Thanks, J.
Old Sep 17, 2012 | 04:13 PM
  #5  
Rupe's Avatar
Horsepower Mathematician
 
Joined: Jul 2011
Posts: 571
From: Montreal, Canada
Check the cleanliness of your air filters?
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