Idle Sticking
 

Ok, I live in Louisiana.Weather changinf constantly.I have noticed that when the weather is very humid and warm, my throttle sticks, and i have to shut the car off and turn it back on so it will bounce back to normal, but when the weather is cool say around 50's or 60's it never sticks..
Any clues?
Thanks

Is your actual throttle staying open, or is it just the idle?

idle sticking
 

Not sure it always happens when i am driving it , hadn't really happened when i was just looking at the motor, but the throttle body is clean i clean it almost every month

check tps voltage, or may be egr, need to run some codes.