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P0401 Diagnostic Trouble Code Discussion for September 2014

Insufficient EGR Flow Detected

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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2006 Ford F-350 Super Duty XLT 6.0L MIL Lamp on VIN: 1FTWW31P06
P0401: Insufficient EGR Flow Detected. ... This truck came in for the MIL being on. No other complaints. I found the code P0401. I checked for loose connections and other obvious wiring problems. None were found. I activated the EGR with my scanner and it appeared to work. The engine would fall on ...
September 17, 2014