You need consult to set it up on work support under the AACV/IACV setting. Nissan Throttle bodies can only be set via consult then manually adjusting idle screw down to around 650 rpm then as you exit work support screen the idle normally sets to around 700 rpm.
YOU CANNOT DO THIS manually as all youll do is screw up your idle speed control valve, it should be on 20 % ish at 80 deg c with no load. Manually adjusting will prob make is stick at 60 % open.
Go to A Nissan garage if you want it setting,