I have a 2011 hyundia accent, it has had an oil change and tune up, coil packs checked and gas pressure check everything seemed fine, but for some reason when i run the ac the car seems like it looses power and wants to stall. Could it be an easy fix? I turned thought it was something different then today while sitting at my sons school to pick him up, the ac was running while in park and it was like the car was misfiring. So i turned off the ac and the car ran fine.

 

Sounds like the ECU is not getting he message that the AC is on