torque values for 2004 maxima upper intake,spark plgs, bank 1 sensr 1

You'll want to hit up Google or a Nissan forum for specifics but as a general guide you want to create a X style cross pattern starting in the middle and working your way to the outside, if M6 bolts into aluminum about 15-17ft/lbs, M8 bolts about 23- 25ft/lbs, M6 nuts about 18-20ft/lbs, M8 nuts about 26-28ft/lbs. Keep in mind that these numbers are low enough that your standard torque wrench will not work, you would need a low yield torque wrench which you may only be able to find in in/lbs and have to do the conversion. Now gasket style spark plugs you tighten by hand until you feel the gasket touch, then you tighten with a ratchet until you feel that the gasket has stopped compressing, give it a 10 degree tweak and you're done, same applies to your o2 sensor.