Engine light turns off.

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bob - 29 Jan 2008 01:13 GMT

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.

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Jeff - 29 Jan 2008 06:49 GMT

> 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.

The light should not turn off unless the sensor was no longer causing an
alarm. I think it is X amount of ignition off-on cycles (without an alarm)
that resets the light.

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