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Fiat
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2022
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500X Sport
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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 P2174 To P2B95
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Diagnosis And Testing
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P2251-O2 Sensor 1/1 Negative Current Control Circuit/Open
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When Monitored
When Monitored
This diagnostic runs when the following conditions are met:
With the ignition on.
During a Decel Fuel Shutoff (DFSO) event.