Acura 16620-RCA-A01 Engine Fuel Rail

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Relieve the fuel system pressure, disconnect the cable from the negative battery terminal, and remove the engine or intake manifold cover. Disconnect the vacuum hose from the fuel pressure regulator, remove the fuel pulsation damper and disconnect the fuel supply line banjo fitting from the fuel rail or the junction block, remove and discard the old fuel line banjo fitting sealing washers, slide back the hose clamp and disconnect the fuel return hose from the fuel pressure regulator, disconnect the electrical connectors from the fuel injectors, disconnect the fuel supply hose from the front fuel rail then remove and discard the old O-ring. Remove the fuel rail mounting bolts then remove each fuel rail and its three injectors as a single assembly. Remove each injector from its bore in the fuel rail, remove and discard the O-ring, the cushion ring and the seal rings. Install a new seal ring in each injector bore, apply a thin coat of clean engine oil to the inside of each seal ring, coat the new cushion rings and O-rings with clean engine oil and slide them into place on each of the fuel injectors, coat the outside surface of each O-ring and cushion ring with clean engine oil, then insert each injector into its corresponding bore in the fuel rail, install the injectors and fuel rail assembly on the intake manifold, tighten the fuel rail mounting bolts securely, reconnect the cable to the negative battery terminal, turn the ignition switch to ON, activate the fuel pump for about two seconds, repeat this step two or three times, then check the fuel lines, fuel rails and injectors for fuel leaks.