Miata Mailing List: February 1998, Message #31
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From: 	Juan Carlos Castiel <jcmx5@coqui.net>

Subject: Re: Question about FPR

Date: 	Sun, 1 Feb 1998 08:43:00 +0000







GobieGo@aol.com wrote:



> Does anyone out there have the procedure for checking the fuel pressure

> regulator from the shop manual? The car is a 1990.

>



 Mark,



You check fuel pressure regulator checking that the fuel pressure is

on sync. Around 42psi at idle and 'bout 46-48psi WOT, as confirmed

by a fuel pressure gauge tapped in to your fuel supply line, the line

forward

on the injector rail not the line beneath the fpr. Use clamps to secure the



hoses on the gauge and keep the gauge out of the car if you are going to

check while driving, tape the gauge to the windshield and go for

a drive.



Juan Carlos Castiel