UPDATE: Fixed photo and links 13/01/2013. SAI, N249 and N112 Removal Part 1 Jack car up and place on axle stands.Working from underneath Remove bottom engine shield (4 torx screws) Next unplug SAI sensor (see blue arrow) Remove the 3 x 10mm nuts holding SAI to Bracket(note you may not be able to remove the SAI yet, but might have space) carefully lower SAI and remove the 2 plastic hoses to the SAI before you completely remove SAI. These are the input and output plastic hoses from