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Fiat
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2021
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500X Pop
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Repair and Diagnosis
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Engine Performance
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System
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1.3L - DTCS P0121 To P02EE
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DTC Troubleshooting
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P0131-O2 Sensor 1/1 Circuit Low
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Set Condition
Set Condition
The Oxygen Sensor 1/1 signal voltage is less than 0.0 volts for 9.0 seconds.