
Codes and causes | Ford Expedition Forum
Apr 22, 2014· P1400 DPFE Circuit Low Input P1401 DPFE Circuit High Input P1402 EGR Metering Orifice Restricted P1403 DPFE Sensor Hoses Reversed P1404 IAT - B Circuit Malfunction P1405 DPFE Sensor Upstream Hose Off Or Plugged P1406 DPFE Sensor Downstream Hose Off Or Plugged P1407 EGR No Flow Detected P1408 EGR Flow Out Of Self Test Range