I have a 2009 Borrego LX V6. About two months ago I started having issues with the idiling. I would come to a stop and the car would shutter, the check engine light came on and it would give the p0017 code, and sporatically shut off (at stops only). So far I have been told by two kia mechanics to change either the crank shaft position sensor or the cam shaft position sensor. Neither has worked the problem persists. Prior to the problem (when i bought the car used) I changed the oil for the 1st time and noticed the previous owner was using synthetic oil, so I changed to non-synthetic and that is when the problem started. Anybody have a similar problem? or a fix for this? I want to take it to the dealer but they are charging $90 just to diagnose the problem!!!!!!!! Any and all comments appreciated.