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ERROR CODE PO 131

does anyone know difinitivly what this error code means i keep clearing and it keeps recurring   I have changed the o2 sensor   Lambda but this was admittedly not top of range sensor could this b the problem? any and all suggestions welcome

Thank you

 

 

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 O2 Sensor Circuit Low Volts (Bank 1 Sensor 1) that's what comes up

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Cheap lambda sensors are often poor quality unfortunately so could be that.  Was it a generic one that had to have a plug soldered on?

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