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Hey guys
I bought a z32 a couple of months ago so I’m still new to the whole 300zx thing. Anyways, my fuel pressure regulator doesn’t have any vacuum line going to it, and I read that it gets it’s vacuume from the prvr valve? Still unsure what the heck that means, and I can’t find it anywhere in the engine bay.
The car runs fine but It still should have vacuum going to it. I just want to hook it up correctly.
Thank you guys.
 

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The PRVR solenoid is a vacuum switch. It’s supposed to prevent fuel line vapor lock in very hot re-start conditions. Many have removed the PRVR system with no issues — seems vapor lock isn’t much of an issue. If your Z is otherwise running good - don’t worry about connecting to it.

Here’s a diagram showing the hookup (US cars do it this way too, turbo and non-turbo):

https://aus300zx.com/xenforo/index.php?threads/carbon-canister-vac-line-question.300042/


For more on the PRVR:

http://s95014253.onlinehome.us/63104/138229.html

http://www.twinturbo.net/nissan/300zx/forums/main/view/868688/PRVR-is-a-system-for-minimizing-vapor-lock-of-the-fuel.html
 
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