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P1404 Diagnostic Trouble Code Discussion for September 2006

EGR Position Sensor Rationality Closed

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Trouble Ticket Help Requests for DTC P1404
Help Request Posted
1999 GMC K1500 Suburban SLE 5.7L MIL Lamp on VIN: 3GKFK16R3X
P1404: EGR Valve Closed Position Performance. ... years ago and just recently the customer commented on the service engine soon light on at times and stated that the condition was intermittant. we scanned the system and the p1404 was back in history. we used our tech2 to access the system and we operated ...
September 14, 2006