Fpr vacuum 1991 z32 - Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z
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post #1 of 2 (permalink) Old 01-01-2019, 07:00 PM Thread Starter
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Fpr vacuum 1991 z32

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.

Just a newbie with a 77 280z and 87 z31.
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post #2 of 2 (permalink) Old 01-04-2019, 02:42 PM
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The PRVR solenoid is a vacuum switch. Itís supposed to prevent fuel line vapor lock in very hot re-start conditions. Many have removed the PRVR system with no issues ó seems vapor lock isnít much of an issue. If your Z is otherwise running good - donít worry about connecting to it.

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


For more on the PRVR:


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