SES light/ P0401 code question

[u_say_go]

2002 Ford Explorer check engine light came on. code P0401. changed DPFE sensor and EGR valve, cleared the code and within 20 miles the check engine light came back on.... any idea what I should check next?
thanks for the help

[Reverend Cooper]

make sure the egr passages are cleaned out,also if it has a vacuum switching valve that operates the egr,that may be the culprit

[spooln30]

Yeah it was probably a clogged passage from the get go.

[spooln30]

Fords did have issues with the DPFE valves.