Location and test engine coolant sensor Engine Hyundai i30 G4FA
part number 39220-38020
Cold engine (20 celsius or 68 fahrenheit) = 2.700Kohms
DTC fault codes
P0115, P0116, P0117, P0118, P0119, P0125
Symtoms of a bad ECT sensor when the engines heat up at idle speed increases when the temperature sensor fails to give the correct temperature, eg. the engine thinks it's cold
This video is not meant to be a definitive guide. I am not responsible for any problems you may encounter while watching or following this video.
Video credits to briandoliver YouTube channel