Properly relieve the fuel system pressure.
Disconnect the negative battery cable.
Drain the engine cooling system.
Remove or disconnect the following:
Air cleaner outlet duct
A/C compressor pressure switch electrical connector
Harness clip from the cylinder head and fuel raid
Mass Airflow/Intake Air Temperature sensor connector
Disconnect the electrical connectors from the following:
Electronic Throttle Control (ETC)
Fuel injectors. Matchmark the connectors, pull the Connector Position Assurance (CPA) retainer up 1 click. Push the tab on the connector in, then detach the injector connector.
Evaporative emission (EVAP) purge solenoid electrical connector
Knock Sensor (KS) electrical connector
Fuel injector electrical connector
Electrical harness clips from the fuel rail
KS harness electrical connector from the intake manifold
Positive Crankcase Ventilation (PCV) valve hose and valve
Heater water shutoff valve actuator inlet hose from the intake manifold
EVAP purge solenoid vent tube
Vacuum brake booster hose from the rear of the intake manifold
Upper engine wire harness retainer nut. Position the wire harness aside.
Intake manifold bolts
Intake manifold and gaskets. Discard the gaskets.