Forums/Z31P/z31-basics basic-modifications-basic-questions-aka-the-newbie-forum/Stock fuel pressure at idle?

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Lou88NA2T: (2008-12-15 19:05:50)

I can't find my haynes book to look it up and I need to know what is the stock fuel pressure at idle.

I think it's 37 psi at idle but I remember seeing a 30 psi number in the book but i can't remember what it was for.

Does anyone know?

I installed a new fuel filter and a new fuel pressure guage and it's reading 38 psi at idle.

Thanks!

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michaelp: (2008-12-15 21:00:06)

30psi @ idle, 37psi @ WOT IIRC.

FSM is a good source :P

http://xenonz31.com/reference.html

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DeleriousZ: (2008-12-15 21:35:35)

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85zxt3/4: (2019-08-22 17:52:44)

My fp at idle used to be 30 at idle - now it's 28 - any thoughts ? FPR or ? just leave it alone?