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?

 

Sounds familiar... https://www.zdriver.com/forums/280zx-performance-technical-79/update-30723/



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.

 

Any ideas what it could be, maybe a little more specific? Or has anyone else had this happen?

 

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?