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P1406 Diagnostic Trouble Code Discussion for July 2009

EGR Valve Pintle Position Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1406
Help Request Posted
1997 Chevrolet Lumina 3.1L Hesitation, Misfire, MIL Lamp on VIN: 2G1WL52M3V
P1406: EGR Valve Pintle Position Circuit Malfunction. ... gasket and intake gasket job the engine has a SLIGHT misfire under a slight load and during decel. Customer first felt misfire in the 50 to 55 mph range under slight load. But I've been able to duplicate it at very slow speeds--5 to 10 mph with the brake s...
July 12, 2009