DTC P0405, P0406, P1405, P1406: Differential Pressure Feedback (DPFEGR) Sensor Malfunction

WARNING: This page is about a different car, the 2003 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Differential Pressure Feedback (DPFEGR) Sensor Malfunction Troubleshooting Procedure

Courtesy of FORD MOTOR CO.

Fig 2: Differential Pressure Feedback (DPFEGR) Sensor Malfunction Inspection Procedure (1 Of 3)

Courtesy of FORD MOTOR CO.

Fig 3: Differential Pressure Feedback (DPFEGR) Sensor Malfunction Inspection Procedure (2 Of 3)

Courtesy of FORD MOTOR CO.

Fig 4: Differential Pressure Feedback (DPFEGR) Sensor Malfunction Inspection Procedure (3 Of 3)

Courtesy of FORD MOTOR CO.