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P1406 Diagnostic Trouble Code Discussion for February 2008

EGR Valve Pintle Position Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1406
Help Request Posted
1997 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K9V
P1406: EGR Valve Pintle Position Circuit Malfunction. located a fuse in the passenger side relay center #5 20 amp fuse that was blown. using our tech 2 we tried to control the egr,vent.purge,ac clutch relay and after fuse replacement all componants operated and we monitored the o2 senser heater for the #1 sensor ...
February 04, 2008