Subaru 16611AA430 INJECTOR Sub Assembly

For non-turbo models, remove the air intake duct, resonator, air filter housing, spark plug wires from No.1 and No.3 cylinders, power steering pump and fuel rail protector. Disconnect electrical connectors from fuel injectors and vacuum hose from fuel pressure regulator. Disconnect fuel supply and return hoses from fuel rail. Remove fuel rail and injectors as a single assembly. Replace old O-rings on each injector with new ones. Reinstall fuel rail and injectors. For the left fuel rail, remove bolts securing windshield washer fluid reservoir, disconnect spark plug wires for No.2 and No.4 cylinders, PCV hose, fuel rail protector(s), and injector harness. Replace injector O-rings. For turbo models, relieve fuel system pressure, remove engine cover, disconnect cable from negative battery terminal, air intake duct, engine coolant reservoir, and electrical connector from fuel injector. Replace old injector O-ring with a new one.

Remove the air intake duct, resonator, and air filter housing. Disconnect spark plug wires for No. 1 and No. 3 cylinders. Unbolt the power steering pump and set it aside (for 2007 and earlier models). Remove the power steering fluid reservoir and set it aside. Remove the fuel rail protector. Disconnect electrical connectors from the fuel injectors. Disconnect the fuel line fitting. Remove the fuel rail mounting bolts. Remove the fuel rail and injectors from the intake manifold as a single assembly.