[2way]

Yeah, remove the hose to the TB and spray carb cleaner into the rectangular like holes in front of & behind the throttle plate till full. Put hose back on. Jump in car & turn ignition on & off a couple of times without starting. Then crank. It will take a bit of cranking to clear the carb cleaner out.

 

[2way]

Yes. Idle is entirely controlled by the ECU using the Idle Air Control Valve (IACV). Except '03+ where it is the ECU controlling the DBW throttle.

 

[2way]

I'd try just spraying it out first instead of the complete removal. 😉