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P0401 Diagnostic Trouble Code Discussion for August 2008

Insufficient EGR Flow Detected

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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
1996 Ford Taurus LX 3.0L MIL Lamp on VIN: 1FALP53S7T
P0401: low egr flow detected. Ok, this car came in with an overheat problem as the primary concern so we fixed that and recommended some other things such as diag the check engine light and find an exhaust leak. So I started with the check engine light. Went through all the normal checks a...
August 01, 2008
2001 Ford Expedition XLT 4.6L MIL Lamp on VIN: 1FMRU16W01
P0401: insuffecient EGR flow. ... repeat code P0401. We first replaced the DPFE sensor as they are very common. Code returned, we replaced the EGR valve. Code returned. Made sure pipe was clear and we had airflow thu it, both good. No exhaust leaks found. Maybe a faulty DPFE? We only get t...
August 01, 2008
2003 Ford F-550 Super Duty Lariat 6.0L no power VIN: 1FDAF56P93
P0401: Insufficient EGR Flow Detected. vehicle came in with poor performance, drove vehicle and could here turbo & definetly low power, found hose(blue coupler) off of turbo coming from right side of intercooler. secured hose and test drove again, after accelerating same hose blew off. found bu...
August 08, 2008