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jimberg · 06-03-2003, 07:00 AM

With the engine off and running the fuel pump like I described above, you should normally have your fuel pressure set to 39 psi. Fuel pressure should go down as vacuum increases and go up as vacuum decreases. Vacuum should go to 0 at WOT so you should have 39 psi at WOT.

06-03-2003, 07:00 AM	#7
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	With the engine off and running the fuel pump like I described above, you should normally have your fuel pressure set to 39 psi. Fuel pressure should go down as vacuum increases and go up as vacuum decreases. Vacuum should go to 0 at WOT so you should have 39 psi at WOT. __________________ 351W 89 Mustang GT Convertible Last edited by jimberg; 06-03-2003 at 07:23 AM..