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P0401 Diagnostic Trouble Code Discussion for July 2010

Insufficient EGR Flow Detected

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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
1998 Ford Taurus SE 3.0L Excessive Emissions VIN: 1111556677
P0401: insf flow egr. changed pfe changed solnoid egrvalve tests ok blewout all lines to pfe code still comes back ford tecks please help
July 13, 2010
2002 Mitsubishi Diamante LS 3.5L Hesitation, Stall VIN: 6MMAP57P72
P0401: Insufficient EGR Flow Detected. ... check engine light and 2 codes, P0401 and P0403. Tested EGR solenoid found inop. The complaint was not the check engine light, but that when turning corners the vehicle will hesitate and sometimes stall. I checked data for MAP and fuel trims and all looks ...
July 24, 2010