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P1406 Diagnostic Trouble Code Discussion for May 2004

EGR Valve Pintle Position Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1406
Help Request Posted
1997 Chevrolet Tahoe LS 5.7L Misfire, MIL Lamp on VIN: 1GNEK13R1V
P1406: EGR Valve Pintle Position Circuit Malfunction. I would like to know if any other tech,s or shops have run into fuel in main injector harness where it plugs into central fuel injector body, then travels into wiring insulation to ECM. also poppet nozzles are sticking. Thanks, Dean
May 13, 2004