I just bought a 2002 Nissan Altima and within 2 weeks we had to take it back to the dealership and they had to replace the whole throttle body and then they had to take it to Nissan to reset the computer (it was idling at 1500 rpms sitting still).. now it idles at about 800 or so. Is that the normal idle rpms

 

I think that is within range