I love the vehicle inside and out. It drives and handles well. The only problem I have is the engine light comes on and off at random always giving the same code (P506) and the vehicle stalls at random usually from a cold start, but sometimes when the vehicle is in motion. Kia has tried to fix these problems at least 4 times each but have had no success. Apparently, they want me to constantly take the vehicle in for service each time the problems happen, but it's impossible for me to do so every week. Kia doesn't seem too concerned about the problems and has said they will make no offer to resolve the problem.
that code is for the air idle control valve...a simple cleaning will probably solve your problem, that llttle butterfly valve in your air intake system gets gummed up with carbon and gets sticky. It needs to freely move with the increased loads on the motor, especially when you turn on the heater or lights right after you start up cold. It's not just KIA, just about all engines with drive by wire systems use the same system...and have the same issues...even Lexus.
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