I have a 06 Sportage and have a problem with the AC. When I am drving and have the AC on it works just fine. But when I am just sitting not moving with the AC on the car stalls everytime. What could be the problem?
It could be failure of your idle speed control actuator (ISCA), or the connection to it. This device is bolted to your throttle body and controls engine idle speed. When the AC is switched on, the ISCA should open just that bit more to idle up the engine to compensate for the extra load imposed by the AC compressor.
I do not know if they are different between the I4 and V6. I only know the V6, as that is what I have. More infor at www.kiatechinfo.com.