P0031 o2 sensor. Which one?
Hi,
2002 Santa Fe 2.7L v6 Check engine light came on and I have an error code of P0031. I went to get a new O2 sensor but was told there were 2 different O2 sensors. An up stream and down stream (I think they said). Can you tell me which sensor is needed when a P0031 shows and tell me where this sensor is located? Thank you for any information you can provide. Brian |
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