You need to relieve the fuel system pressure, remove the wire harness bracket nut, disconnect the evaporative emission (EVAP) purge solenoid electrical connector, the generator electrical connector, and the electrical connectors, remove the knock sensor harness connector, and the connector position assurance (CPA) lock, disconnect the following electrical connectors, remove the harness clips, reposition the engine wire harness aside, disconnect the fuel injector electrical connectors, remove the positive crankcase ventilation (PCV) hose, disconnect the fuel feed pipe, loosen the crossover tube-to-right fuel rail bolt, remove the fuel rail bolts, the fuel rail, and the fuel injector lower O-ring seal, and discard the O-ring seal.