After I cleaned the throttle body the car went a bit smoother. But then I sprayed some cleaner into the black component part on end outside the body and that may have created a small IAC valve fault, so watch you only spray into the butterfly and venturi chamber not outside the throttle body.
At first it is a little daunting taking off fan cover, hose, and then upside down for the TB screws, and if detaching removing some bottom hose thing, but do it seven times and it is easy. To seat the gasket put in one screw then bring the gasket around with fingers by feel to meet the second hole. The most time consuming part doing up the 4 inches of thread on the bolts.