just pull and replace it... when you are saying "new"... you previously indicated you were going to do a "junk yard swap"... is this the one? Further, IF new, it depends on where you got it from and who made it.... YMMV but I went thru a few before getting one that works.
there is an "idle set procedure" which basically has the car run in idle for 3 minutes, then off, then should be normal thereafter (ie. idle should be "factory") IF "all things" are good.
here is a quote for the actual procedure:
1) Start the engine and let it idle in park for 3 minutes. During that period the idle may be higher idle than normal.
2) After 3 minutes, turn the engine off and leave it off for 60- seconds.
3) Start the engine again and let it idle in park for 3 minutes one more time. During these run periods you may see a check engine light. Scan for codes and if you get throttle body related codes, clear them.
4) If the idle speed is still off, drive the vehicle at speeds above 44-mph and operate several acceleration and deceleration cycles. Then repeat step #3 one last time.