I am trying to use available IEs to bind a virtual intercooler door on my plane to a hardware switch.

The virtual intercooler control is a three position switch, where moving the switch in one direction opens the intercooler, moving it the opposite direction closes it, and releasing it altogether moves the switch to the center which has a null value (the intercooler doors remain where they were).

The IEs that are available are listed as:

INSTRUMENT_SWITCH_intercoolervis_Inc

INSTRUMENT_SWITCH_intercoolervis_Dec

INSTRUMENT_SWITCH_intercoolervis_Toggle

INSTRUMENT_SWITCH_intercoolervis_Set

I have successfully used other IEs that have similar names to bind my cowl flaps and water methanol injection switch. But when I try to bind the above IEs in exactly the same manner in AAO, I get nothing ,except the the little green light on the Assigned Buttons window does light up when I press my assigned key. The virtual control, however, does not move in any way.

Why should there be a difference with these IEs? What might I try to get this to work?

Chris

7 hours ago, Chris455 said:

Why should there be a difference with these IEs?

All IEs are different, there are no rules. IE are not default simulator assets, they are invented and implemented by the aircraft developers in whatever way and with whatever value range they choose.

7 hours ago, Chris455 said:

What might I try to get this to work?

• Check that you are supplying the correct values to the IE.
• Make sure that it isn't one of those that require two parameters (IE:2:) and that can only be used in scripts. In this case, if there is more than one intercooler, then the second parameter would be the number of the item that is to be controlled. "1 1 (>IE:2:INSTRUMENT_SWITCH_intercoolervis_Inc)"
• Try using the BVars instead.
• If all fails, notify the aircraft developer that the IE is not working.

Edited December 6, 2025Dec 6 by Lorby_SI

Thank you, I will look at these-