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P0401 Diagnostic Trouble Code Discussion for July 2016

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2006 Chevrolet Silverado 2500 HD LT 6.6L Poor Idle Quality, MIL Lamp on VIN: 1GCHK23D96
P0401: EGR Flow Insufficient Detected. ... most of us I have a problem with 06 Silverado 6.6 diesel. P0401 will set in pending codes on first key cycle when idling. Have flashed Ecm, replace egr vavle, had after market air replaced it with manufactures. Try a mass air flow sensor. At times will sur...
July 05, 2016
2006 Chevrolet Silverado 2500 HD LT 6.6L Poor Idle Quality, MIL Lamp on VIN: 1GCHK23D96
P0401: EGR Flow Insufficient Detected. ... most of us I have a problem with 06 Silverado 6.6 diesel. P0401 will set in pending codes on first key cycle when idling. Have flashed Ecm, replace egr vavle, had after market air replaced it with manufactures. Try a mass air flow sensor. At times will sur...
July 07, 2016
2004 Ford F-250 Super Duty King Ranch 6.0L MIL Lamp on VIN: 1FTNW21P74
P0401: Insufficient EGR Flow Detected. ... weeks later there is a code P0401 EGR insufficient flow detected. Freeze frame information gathered with IDS scan tool: LOAD: 41.18% ECT: 190.4 F MAP: 20.445 psi RPM: 2055.75 rpm VS: 70.23 mph IAT: 84.2 F MAF: 127 g/s PTO: Off RUNTM: 05:20 EGRPCT: 18.43%...
July 28, 2016