I got the engine code P0052 on my 2004 Kia Optima, is this an O2 sensor issue?

Question

2004 kia optimal p0052I got the engine code P0052 on my 2004 Kia Optima, is this an O2 sensor issue?

Answer 1

If the fuses are OK and there is no visual damage to the harness, then the problem it's more likely the sensor.

P0052 KIA - HO2S 21 Hater Circuit High Input

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