idle ok, but jumps to high on 1991 Nissan Maxima

My 91 nissan maxima idle ok at 650 to700rpm then press the gas a little and jumps over 1500rpm nothing less,... any ideas???

Asked by for the 1991 Nissan Maxima
Throttle body may be sticking - need cleaned. Idle control valve could be sticking. Concentrate your attentions on the air intake and throttle body area.
thanks, now works much better