How did you clean it? With it still installed? Engine running?
Just take the TB off to clean it so you aren't pushing all that filth into the engine.
At any rate, unhooking the battery (no need for any special trickery, just unhook for a moment and reconnect) will clear the codes. If they come back, you've got issues to fix.
08 Limited Hemi - wheels, tires, springs...ya know, stuff