set idle last night at 900, this morning its back to 700
 

I recently installed my cam and need the idle set to 900 so it wont die when I coast to a stop.
I set the idle screw on the TB last night, then drove it and it was great. Didn't die once.
Then this morning, I started it and it idle'd down to 700rpm. Why did it do this? Did the computer recognize what happened and adjusted accordingly?

What can I do to keep it at 900?

Since it's changing the throttle position from upping the idle, do I need to reset the TPS to 0.98V ?

What about resetting the computer? Or both?

thanks, Drew