300ZX (Z31) Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.

Warm restart issue

Old 03-15-2017, 07:48 PM
  #1  
Registered User
Thread Starter
 
Starmix's Avatar
 
Join Date: Jul 2014
Location: South Florida
Posts: 9
Warm restart issue

Im hoping someone may have a bit of advice. My car starts and runs excellent, however when I shut it down and restart it will sometimes run at a very rough and low idle. I need to hold the gas to the floor to keep it running, and it eventually raises idle and sort of clears its throat! Once it clears up it runs perfectly again..
Does anyone know of a similar situation and if so what was your fix?
Thanks in advance!
Starmix is offline  
Old 03-16-2017, 07:51 PM
  #2  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,616
Step 1: Pull ecu codes. Address any issues.
Step 2: Check fuel pressure.
Step 3: Check CHTS and MAF.
NismoPick is offline  
Old 03-17-2017, 08:09 AM
  #3  
Grumpy & Helpful
 
Join Date: Sep 2006
Location: Mill Creek WA
Posts: 1,415
sounds like a leaking injector is allowing unburnt fuel to gather in the intake manifold. when you hold the accelerator pedal down you are allowing enough air into the engine to overcome the amount of unburned fuel in there. fuel flow to the engine is governed by the maf.
rogerz is offline  
Old 03-18-2017, 11:00 AM
  #4  
Registered User
Thread Starter
 
Starmix's Avatar
 
Join Date: Jul 2014
Location: South Florida
Posts: 9
Thanks for the help! I'm gonna work on it tomorrow and see what I find. I will update afterwards. Thanks again!
Starmix is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Juanz31
300ZX (Z31) Forums
2
04-27-2015 05:56 PM
cbaumy34
280ZX (S130) Forums
11
05-31-2013 10:25 AM
njgheewala
280ZX (S130) Forums
10
05-10-2009 05:39 PM
John
280ZX Performance / Technical
1
01-19-2004 08:16 AM
ContagiouSzxt
240Z, 260Z, 280Z (S30) Forums
2
08-11-2002 03:29 AM


Thread Tools
Search this Thread
Quick Reply: Warm restart issue


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.