how many miles on the car now? besides the intake, any other mods to the car? is your ac working correctly (as in blowing cold air and not warm)? besides when running the ac, does the car stall any other times? any other symptoms of the car not performing right other than stalling out when the ac is on?
If the intake bit was recent, then yeah I'd say that wouldn't be a bad place to start. Probably not the ultimate cause of your problem, but it could be contributing to it if you overlooked something during the install. Cleaning the air filter is never a bad idea, so hit that as well. Probably not really necessary, but it might be a good idea to disconnect the battery to reset the ECU before you let it relearn the idle this time around as well.
Other than that, check the routine stuff like sparks n wires, belts, and fuel delivery.