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P1406 Diagnostic Trouble Code Discussion for January 2007

EGR Valve Pintle Position Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1406
Help Request Posted
1995 Chevrolet Blazer 4.3L Poor Idle Quality, Surge, MIL Lamp on VIN: 1GNDT13WXS
P1406: egr pintle stuck open. my question is .. has anyone come across a way to eliminate the carbon ( ie: a method of cleaning it out) without removing the intake completely? thanks in advance for any help anyone can provide jack "a first choice auto"
January 08, 2007
1996 GMC C1500 Sierra SL 4.3L MIL Lamp on VIN: 1GTEC14W9T
P1406: EGR Valve Pintle Position Circuit Malfunction. ... different repair facilities. Codes p1122 and p1406 trigger the check engine light and then the idle stays high (1800-2500 rpm). Customer indicates that turning the truck off and restarting it shuts out the light and restores the...
January 09, 2007