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Dodge and Ram
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2021
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Challenger SRT Hellcat, Automatic Trans
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Repair and Diagnosis
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Engine Performance
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System
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6.2L - DTCS P0123 To P025D
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DTC Troubleshooting
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P0138-O2 Sensor 1/2 Circuit High
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When Monitored
When Monitored
This diagnostic runs continuously when the following conditions are met:
With the engine running.
Battery voltage greater than 10.4 volts.