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P0401 Diagnostic Trouble Code Discussion for August 2011

Insufficient EGR Flow Detected

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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2003 Ford F-550 Super Duty XL 6.0L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1FDAF57P93
P0401: Insufficient EGR Flow Detected. ... help.this f550 came in w/low power,black smoke out of tailpipe,LOTS of bluish smoke coming from lt side of engine compartment(exact source unknown). koer tests come back w p0266,cyl 2 contribution.when i enable/disable injectors w/scanner,all sound about ...
August 26, 2011
2003 Honda Civic EX 1.7L MIL Lamp on VIN: 1HGEM22943
P0401: EGR System Insufficient Flow Detected. ... course. This vehicle came in yesterday with several codes (P1259 VVT malfunction, P1298 Electronic Load Detector (ELD) circuit high voltage, FIXED) and P0401. I replaced the EGR valve the High school kids put on when it tested bad on via my Vantage. The EG...
August 30, 2011