Idling issue with my HR 350Z

[wls]

Hi guys.
sorry to bother, but i have a strange issue here and im not sure where to start looking.

my car was idling around 1500-1800. long story short, but i have done the full idle reset.
i have cleaned throttle bodys ect.
checked the mafs sensors, cleaned them to.

now i can get the car to idle around 750-900 when its cold, but once warm its iether 1000 rpm or 11000 rpm?
also no error codes are being thrown up on the data logger?

When i drive and come to a stop and take it out of gear it revs up and hangs a bit and then settles back down>?
any idea where to start?
thanks
warren

[wls]

I finally sorted this out, was a fly stuck in the maff sensor, thanks for all the advise.

[ManDogFish]

seafoam it eitherway...my DE starting sounding a little different after I stalled it on seafoam through the brake booster and got more responsive with a slightly lower idle...I had 135k on it when I did/got it... I dno if the previous owner ever seafoamed...

how did the fly get to your MAF through the air filter?? U driving without an airfilter or something??
If your using the drop in K&N...u might have overoiled it