code, low voltage,pcm

Can you remember the fault code number it would look like "P0420" or "P1234"? Low voltage can be caused by poor grounds which Ihave seen bulletins on from Kia. Kia as a car manufacturer put a lot of there technical training and manuals on line for free. If you can give me the code number I can give you more information. Check out Kia's free website http://www.kiatechinfo.com/index.asp