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P1404 Code – EGR Position Sensor Rationality Closed

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Code P1404 Possible Causes
Faulty EGR temperature sensor
Carbon blockage of the pintle
Faulty Exhaust Gas Recirculation EGR valve
Differential Pressure Feedback Electronic DPFE sensor circuit poor electrical connection
Differential Pressure Feedback Electronic DPFE sensor harness is open or shorted

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