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2025
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Durango R/T Plus
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Repair and Diagnosis
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Engine Performance
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System
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5.7L - DTCS P0452 To P0507
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DTC Troubleshooting
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P04FC Crankcase Ventilation System Performance
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the difference between the actual airflow detected and the airflow calculated by the PCM is more than 40%.