37-45 PSI (Pounds per Square Inch)
Install a fuel pressure gauge on the fuel rail assembly diagnostic valve, and attach an electrical jumper wire to the fuel pump testing vip terminal pin, and the other end to a suitable ground. Verify verify that no leaks are present, and with the ignition key in the on position, energize the fuel pump. This will bring the system to a stabilized fuel pressure that can be visually verified on the gauge.
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