Intake Manifold does not need to be removed. Throttle actuator is accessible be removing crossover air pipe, rubber air riser tube and variable intake runner valve. (Thats the black triangle/curve shaped thing in the middle top of the black intake manifold.) pry out the rubber plugs to reveal allen bolts. Remove bolts, wiggle and pull up to remove valve. Be sure to remove electrical connector..... This should get you started, post if you need more help.....

J. M. van Swaay