Quick question for the group? I have a 2003 Kia Rio 73500k Runs great.
Engine light came on about 700 miles ago. I ran the diagnostic and came up
with a slow response O2 sensor, I have not replaced it yet but I noticed
this morning that the light is now out. Does anyone know if after X amount
of miles does the light reset itself or possibly the o2 sensor is
functioning better now.