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P0401 Diagnostic Trouble Code Discussion for December 2007

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2005 Jeep Liberty Limited 2.8L MIL Lamp on VIN: 1J4GL58595
P0401: Minimal EGR Flow Detected. Now my headache after another techs repairs failed! I have been working on this for about a month and i am no deisel tech and need a good one to help with this jeep. I have installed another egr valve and flashed the PCM installed another egr flow controll val...
December 18, 2007
2005 Jeep Liberty Limited 2.8L MIL Lamp on VIN: 1J4GL58595
P0401: Minimal EGR Flow Detected. Now my headache after another techs repairs failed! I have been working on this for about a month and i am no deisel tech and need a good one to help with this jeep. I have installed another egr valve and flashed the PCM installed another egr flow controll val...
December 19, 2007
2003 Ford F-250 Super Duty XLT 6.0L Poor Idle Quality VIN: 1FTNX21P83
P0401: Insufficient EGR Flow Detected. truck clacks and clangs on cold start up,stays very load untill temp reaches 70+f.then sounds and runs good.monitered ctrl. oil pressure raises quickly to 2000+psi do not have fuel pressure pid on scan tool.duplicated symtom check koeo codes, (listed above)rec...
December 20, 2007
1999 Ford Ranger XL 3.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTYR11V6X
P0401: egr flow. This Ranger is running very rich at idle and cruise Huffing black smoke rich.Fuel pressure is stuck @55 psi.I have replaced the flex fuel sensor with a salvage yard unit but i think it is bad too.Information is bad at best on how the flex fuel system works.I r...
December 27, 2007
2005 Jeep Liberty Limited 2.8L MIL Lamp on VIN: 1J4GL58595
P0401: Minimal EGR Flow Detected. Now my headache after another techs repairs failed! I have been working on this for about a month and i am no deisel tech and need a good one to help with this jeep. I have installed another egr valve and flashed the PCM installed another egr flow controll val...
December 18, 2007
2005 Jeep Liberty Limited 2.8L MIL Lamp on VIN: 1J4GL58595
P0401: Minimal EGR Flow Detected. Now my headache after another techs repairs failed! I have been working on this for about a month and i am no deisel tech and need a good one to help with this jeep. I have installed another egr valve and flashed the PCM installed another egr flow controll val...
December 19, 2007
2003 Ford F-250 Super Duty XLT 6.0L Poor Idle Quality VIN: 1FTNX21P83
P0401: Insufficient EGR Flow Detected. truck clacks and clangs on cold start up,stays very load untill temp reaches 70+f.then sounds and runs good.monitered ctrl. oil pressure raises quickly to 2000+psi do not have fuel pressure pid on scan tool.duplicated symtom check koeo codes, (listed above)rec...
December 20, 2007
1999 Ford Ranger XL 3.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTYR11V6X
P0401: egr flow. This Ranger is running very rich at idle and cruise Huffing black smoke rich.Fuel pressure is stuck @55 psi.I have replaced the flex fuel sensor with a salvage yard unit but i think it is bad too.Information is bad at best on how the flex fuel system works.I r...
December 27, 2007