I just put in a new breather box. For easy access I removed both the IAC and TB. I cleaned both. TB was pretty clean, as I cleaned it recently. I was careful not to spray or get near TB switch with carb cleaner.

After cleaning the TB I checked and did hear the click when I was opening the butterfly. Put everything back on the car, I checked again with TB on the car this time and I couldn't hear the click. I did hear the butterfly open and close, but no more click.

Is this click supposed to come from the switch?
I drove the car and the iddle is much smoother and the car more responsive when I press the gas pedal, but it seems that the car is at a higher RPM now when idling -- before it would be at higher RPM when cold and then would down.

I checked the codes and I get a no fault 111 -- shouldn't I be getting a 133 if there is a problem with the switch?

Should remove the TB and try adjusting it?

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'89 244DL M47 159K miles