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P0050 AUDI - what to do?

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P0050 AUDI - what am i suppose to do to correct this? i need to know if i need to buy a new O2 sensor or do something else

Vehicle: 2004 Audi A4 3.0

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HI there,

Most of the time the heater circuit in the sensor does cause the issue. Replacing the sensor will resolve it. I would also suggest checking the O2 sensor heater fuses in the fuse box under the dash.

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