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Honda
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2023
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HR-V EX-L, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - Diagnostics (P027E - P1658)
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Troubleshooting
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DTC P04DF
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Overview
DTC P04DF: Overview
If the FTP sensor value fluctuates from negative pressure to atmospheric pressure after the engine is stopped, the PCM determines an abnormality and stores the DTC.