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Wont start sometimes

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Old 01-25-2011, 08:36 PM
  #1  
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Wont start sometimes

When my 82 280zxt is cold it will start every time but if i drive it, shut it off for a few minutes then go to restart it, it wont start. I try a few more times then it will start and sputter for a second then die. I start it again and give it gas and rev it a little then it runs great. I think its vapor lock but I'm not sure. I run premium 91 octane gas, and it has a pallent fuel rail. You guys have any ideas? And if it is vapor lock what can I do about if?
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Old 01-25-2011, 09:11 PM
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Sounds familiar... https://www.zdriver.com/forums/280zx-performance-technical-79/update-30723/



Originally Posted by NismoPick
A motor needs 3 things to start:
-proper air
-proper fuel
-proper spark

Do you have spark at each cylinder? Are all fuel injectors spraying?
Originally Posted by NismoPick
Vapor lock is not a common problem on the L28E, and even less likely to occur at ambient temps below 80-90*F.
And even less likely w/ a larger than stock flow like a Pallnet rail. Vapor lock was a problem on old school (like 60's/70's) carbs that use very little fuel pressure.
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Old 01-27-2011, 01:15 PM
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Any ideas what it could be, maybe a little more specific? Or has anyone else had this happen?
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Old 01-27-2011, 04:03 PM
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DUDE...

In case you missed the only other post on this thread...

A motor needs 3 things to start:
-proper air
-proper fuel
-proper spark

ARE THE INJECTORS SPRAYING?
IS THERE SPARK AT EACH PLUG?
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