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Home >> Nissan-Datsun >> 1994 >> Maxima SE, Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Fuel Rails & Injectors >> Removal

Fuel Rails & Injectors: Removal

  1. Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE under FUEL SYSTEM. Disconnect negative battery cable. Disconnect accelerator and cruise control cables.
  2. Disconnect wiring harness connectors from Auxiliary Air Control (AAC) valve, throttle position sensor and closed throttle switch. Release cooling system pressure. Drain cooling system. Remove coolant hose to air-cut valve.
  3. Disconnect PCV hose. Disconnect vacuum hoses from vacuum gallery. Disconnect power valve actuator, power brake booster and EGR control valve. Remove EGR flare tube. Remove upper intake manifold collector. See Figure . Remove lower intake manifold collector from engine.
  4. Disconnect fuel pressure regulator vacuum hose, and fuel inlet and return hoses. Disconnect injector wire harness connectors. Remove injector holders. Remove fuel rail from intake manifold. Remove injectors from fuel rail.
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