Join Now
International Automotive Technicians Network

P0401 Diagnostic Trouble Code Discussion for October 2013

Insufficient EGR Flow Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2001 Ford Ranger Edge 3.0L Surge, MIL Lamp on VIN: 1FTZR15U41
P0401: Egr flow. Replaced egr tube,came back with p0401 p1408 codes,found .1v on dpfe sensor wire replaced dpfe with ford part now have 1.0v,still fails koer test,have no voltage change on test drive with scanner,or at sensor with volt meter and vaccum pump,egr valve good,almo...
October 25, 2013
2001 Ford Ranger Edge 3.0L Surge, MIL Lamp on VIN: 1FTZR15U41
P0401: Egr flow. Replaced egr tube,came back with p0401 p1408 codes,found .1v on dpfe sensor wire replaced dpfe with ford part now have 1.0v,still fails koer test,have no voltage change on test drive with scanner,or at sensor with volt meter and vaccum pump,egr valve good,almo...
October 28, 2013
2001 Ford Ranger Edge 3.0L Surge, MIL Lamp on VIN: 1FTZR15U41
P0401: Egr flow. Replaced egr tube,came back with p0401 p1408 codes,found .1v on dpfe sensor wire replaced dpfe with ford part now have 1.0v,still fails koer test,have no voltage change on test drive with scanner,or at sensor with volt meter and vaccum pump,egr valve good,almo...
October 25, 2013
2001 Ford Ranger Edge 3.0L Surge, MIL Lamp on VIN: 1FTZR15U41
P0401: Egr flow. Replaced egr tube,came back with p0401 p1408 codes,found .1v on dpfe sensor wire replaced dpfe with ford part now have 1.0v,still fails koer test,have no voltage change on test drive with scanner,or at sensor with volt meter and vaccum pump,egr valve good,almo...
October 28, 2013