Very high RPM

Good day friends I have a problem with my Nissan Sentra 2007, in the tricks when I turn it on the revolutions increase to more than 1500 rpm when this does not happen before .. which believe that it can be the problem and how I solve it, it should be noted that the thermostat is damaged but I do not know if that influences.

Waiting for your help, thank you.

If the thermostat influences you since the engine temperature sensor assimilates that it is too cold and the rpm is triggered
more practical this happens only in the morning or every time you teach it (all day)
I hope it serves you, greetings

Thanks x the information, this is usually given when the car cools for a long time, when I leave my work at night that I have not turned on the car all day the same thing happens .. !! Well I will ask for the thermostat to see what happens ..

Didn't the electronic accelerator disconnect you on occasion? My brother had a 2005 Nissan Sentra and on one occasion we disconnected the wiring of the acceleration body for another repair and was disruptive, this altered the revolutions in idle, we solved it by disconnecting the battery all night, the next day it worked normal and never failed again.

Does the battery have a lot of time?