I just installed a SARD FPR today and im having fuel pressure problems.

I set base pressure with the vac line off at 39psi as per OEM specifications

Problem is that when I hit boost the fuel pressure doesnt increase with boost pressure enough.

Im set for 16psi of boost. But Fuel pressure is only going up to 43psi at max boost. Only 4psi over base pressure. It should be up to at least 55psi.

I did re-connect the vac line and I cant see any leaks.

Does it matter where I plumb in the guage to check pressure? I have it T-eed in on the fuel line right after the fuel filter

Whats going on? Faulty FPR?

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