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P1404 Diagnostic Trouble Code Discussion for October 2004

EGR Position Sensor Rationality Closed

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Trouble Ticket Help Requests for DTC P1404
Help Request Posted
1998 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZG5284W
P1404: EGR Valve Signal Performance. ports are clear, came on again about 5 months after last replacement. just trying to find out if this could be a ghost code for egr, we recently purchased tech 2 with software programming capabilities and see alot of reprogramming for the setting of false code...
October 19, 2004