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P1404 Diagnostic Trouble Code Discussion for February 2010

EGR Position Sensor Rationality Closed

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Trouble Ticket Help Requests for DTC P1404
Help Request Posted
2005 Chevrolet Silverado 2500 HD 6.6L Stall VIN: 1GCHK23295
P1404: EGR Valve Closed Position Performance. Cleared codes, only one that comes back is 642. Truck will start, run fine then start running rough and stall. Sometimes will restart right away. Not a diesel guy. Anyone seen this before? Thanks
February 17, 2010