I have a problem with my Carnival Diesel Built 2009,136 KW. In case of a strong acceleration, the engine control lamp lights up and stays on.The engine continues to run without loss of power, but I can also accelerate further.Sometimes it has 2 short dropouts when “gasing”.But the funny thing is, if I slow down or speed up, the engine warning light does not work!The Kia workshop could not read any error or make a diagnosis. Who can help me ?