A/C comes on, the IAC PW increases and so the idle drops. Same thing

happens when the fan kicks in or more electrics come on at the same

time. If you have good PID control then the bounce is minimal and you

can get away with it.

BUT if you were to ask the developers to input this kind of dialog for

a future firmware version under idle settings,i think you will have

the best aftermarket ECU for idle control with simple steps!