Possible causes
– Differential Pressure Feedback Electronic Sensor harness is open or shorted
– Differential Pressure Feedback Electronic Sensor circuit poor electrical connection
– Faulty Differential Pressure Feedback Electronic Sensor
– Differential Pressure Feedback Electronic Sensor circuit poor electrical connection
– Faulty Differential Pressure Feedback Electronic Sensor
Tech description
There is a factory service bulletin for the following Ford models:
2000-2002 Ford Taurus
2001-2002 Ford Crown Victoria
2001-2002 Ford Focus
2001-2002 Ford Mustang
2001 Ford Explorer USPS
2001-2002 Ford E Series
2001-2002 Ford Escape
2001-2002 Ford Expedition
2001-2002 Ford Explorer Sport Trac
2001-2002 Ford Explorer Sport
2001-2002 Ford F-150
2001-2002 Ford Ranger
2001-2002 Ford Windstar
2002-2003 Ford Explorer
Ford Factory Service Bulletin OBDII Code P1400 Code
When is the obd code mean?
Differential Pressure Feedback Electronic (DPFE) circuit low voltage detected
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1400 FORD OBD Code Description