I mean neither... I am talking about the entire fuel pump module/housing/assembly that is inside the fuel tank. Disconnect the quick connect output on top of the fuel pump module, and apply pressure inward. This will test the entire pressure side of the fuel pump module for leakage. It will check the hose connections, it will check the filter housing for any cracks/leaks, and it will check the regulator delete assembly for leaks (like if it was missing 1 of the 2 orings or something).
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