Car has 42000 miles. Check engine light comes on while driving. A slight chuging sensation comes shortly befor light. Replaced control solenoid & cleaned EGR valve w/carb cleaner (no help). Could a bad sensor cause engine to chug? Should I consider trying to clean port @ intake manifold? Any other ideas. Thanks for the help.
P0401 on 2001 Mercury Sable
by keithA in Dekalb, IL on July 20, 2010
ANSWER by mastertech6371 on July 21, 2010
replace DPFE sensor. Roy
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