When I bought this car, just over a year ago, the light was on because there was a problem with the oxygen sensor, once I replaced it the light went off, and it has been that way since until last week.
Since then, the light goes on and off occasionally, it means that there is a problem and despite the error code I don't think its with the knock sensor, but in order to make sure I want to measure the voltage according to the Kia tech info.
Does anyone know where is this terminal 3 that they are referring to?
Thanks,
Lior