You need to relieve the fuel pressure, disconnect the negative battery cable, drain the engine coolant, remove the air cleaner assembly, disconnect the ground wires from the
Intake Manifold, the fuel injector connectors, the Manifold Absolute Pressure (MAP) sensor connector, the throttle Position (TP) Sensor, the Idle Air Control (IAC) Valve and the EVAP Canister Purge Valve, disconnect the wiring harness from the retaining clamps, remove the fuel return and the fuel feed hoses, the coolant hoses, the canister purge hose, the brake booster hose, the accelerator cable, the seven nuts and three bolts, the intake manifold with the throttle body and the wire clamps, and the intake manifold gasket.