High Idle around 2k RPM on SR20DET

[abortmission]

Hey what's up guys?I'm new to the forums.My 240sx sr20det has been sitting for awhile...like 6 months.Go to start it up, everything seems to be fine.Except that it's idling quite high around 2kIt jumps around over and over from 1800-2200.Doesn't always do the jumping of the RPMS.But it stays high.It is winter and quite cold, but i doubt it would stay up that high after warmed up.

[xekushnr]

So its idling this high after warming up? Did you drain the fluids in the car before you let it sit?

[abortmission]

no i didn't

[supradealz]

throttle body could be sticking. same thing happened to my car, sat for a month then idled 2200rpms and kept hunting.when its off open and close the TB several times, then when its warm rev it into different revs. it'll unstick after a few minutes of doing this.