I am looking on how to raise the idle on.2002 maxima its idling around 700-750 rpms and the engine rattles and vibrates want to raise it so its smoother is there a screw or some type of adjustment somewhere since its all electronic

 

It's all electronic. There's no physical adjustment.

That's around where it should be idling. There may be some other issue causing your rough idle.

You can buy the "Car Gauge Pro" app for Android and get a Bluetooth OBD2 connector. It works as a code reader, gauges for pretty much anything on the car and it allows you to make some adjustments like the timing and idle RPM. Basically you open the app, make and save the adjustment and that's it.

The app and the Bluetooth connector reader will come to less than $20.00

 

First of all check the oil level. You need to reset the ecu by using Consult II of Nissan Stealership or do it yourself by performing the throttle relearn procedure.