Hi, I have had the same problem on my 2012 Korando Sports (Actyon Sports 2). There is TSB
(service bulletin) regarding this issue. I am guessing your car is probably 2012 model year. You
need to change the polarity of the knock sensors on a socket in the engine bay. They did this
change in the factory for later model year cars.
Details published in this topic. Let me know if you have any questions.
http://syclub.ru/showthread.php?t=10531