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P0404 Diagnostic Trouble Code Discussion for December 2010

EGR Position Sensor Performance

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Trouble Ticket Help Requests for DTC P0404
Help Request Posted
2003 Ford F-250 Super Duty XL 6.0L MIL Lamp on, Injector pump noise VIN: 1FTNX21P83
P0404: EGR Actuator Control Circuit Range/Performance. Customer complaint of a noise when vehical was turned off and happens all the time. Found what i belive is the injection pump buzzing-humming for 30 seconds or more after key has been removed. Same noise as key on for 5 seconds when fuel system pressurizes. V...
December 02, 2010