Idle RPM Help!!!!

[NismoTuned]

I just bought a 92 240sx and the idle on it is crap. it idles at around 1600 rpm when its suppose to idle around 700 rpm. when i step on the gas to try to bring the rpm down it goes even higher and idles around 2000 rpm. does any one know how i can bring the idle rpm down??

[chineseb0i]

adjust the idle. check the timing on that sucker.

[Nissandriver714]

Have you check your throttle cable for slack?