[xxxBlakexxx]

My thoughts of hearing an idle hang at 3,000 is the TPS. But, when the TPS is toast, in my experience, it does not drop down. On the two ocassions my TPS was gone it seemed to hand really high and not want to come back down at all.

When it comes to idle challenges, there are a number of components that work together: TPS, IAC, and the TB (Throttle Body). All need to be working properly.

For starters, I would pull your IAC and clean it. Only takes a few minutes, but your car is pretty new, so it should be in good shape.

Another possibility is that your new TB is not closing properly. If you were to remove the TB and hold it up to light, you should not be able to see any gaps under the blade. Gaps mean air. Air means high idle rpms. I know of at least one case where this was a problem with an after-market TB.

Anotherthing to check is the base idle setting. When the base idle is set too low, the idle will "hunt". That is it moves up and down. When the base idle is too high, the idle speed will be too high. The same thing happens as whent he TB won't close far enough.

To check your base idle setting, start the car and unplug the IAC wire harness. If the base idle speed is too low, the car will stall. If the base idle is too high, the rpms will be high. What should happen is that the car should stumble and act like it wants to die, but keep running. If the TB blade won't close far enough due to a defect, the idle will be high and lowering the idle set screw will have minimal affect because too much air is passing under the blade.Hope this gives you a few ideas.