Subject	The FPR is boost/vacuum referenced
Posted by	-Grimm- on December 26, 2013 at 4:36 PM
	This message has been viewed 194 times.
In Reply To	Re: 43.5 psi above intake manifold pressure. posted by iamdan012 on December 26, 2013 at 04:23 PM
Message	It is ~44 psi plus the intake pressure If you have 10 psi boost, you should have (at that boost) ~54 psi fuel pressure. With the car off there is *no* fuel pressure, but the check valve in the fuel pump should maintain a little bit of pressure. If the pressure is ~40 at idle and drops to 0 immediately, something is not correct. Could be the check valve, could be the regulator and pulse dampener, or could be a leaky injector seal ------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Building) 2004 G35 Sport 6MT (DD)
Follow Ups	Questions about fuel pressure? - iamdan012 17:23:36 12/24/13 Re: Questions about fuel pressure? - Rasta420 07:43:27 12/25/13 approx 36 psi at idle (n/m) - BarryGZX 17:52:43 12/25/13 43.5 psi above intake manifold pressure. - not4resaleZ 10:27:02 12/26/13 Re: 43.5 psi above intake manifold pressure. - iamdan012 16:23:20 12/26/13 The FPR is boost/vacuum referenced - -Grimm- 16:36:50 12/26/13
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