Sounds like intake manifold leak, tps could be bad, maybe a bad fuel injector, possibly Oxygen Sensor is bad or unplugged. If she's running hot, she's probably running lean.
You really need to call ur dealer, explain to him what's up and make the appointment for them to inspect it.
To detect a manifold leak- spray carb cleaner around the seam where the mani bolts to the heads and spray where the throttle body mates to the intake. If the rpms die down when you do this, it means carb cleaner is getting to the combustiin chamber via the leak.
Visually inspect the O2 sensor to verify it's plugged in.
You could google the correct way to test the tps via a handheld voltmeter-it's just a potentiometer.
The bad injector- rig up a way to apply fuel to it to see if its stuck open under power.
Kind of vague descriptions but it may help you head in the right direction...(to the dealer, its under warranty)