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The Dreadful P0446
What has been done to date. Wells SU1390 Fuel Tank Pressure Sensor ACDelco 214-1105 GM Original Equipment Vapor Canister Purge Valve ACDelco 214-1091 GM Original Equipment Vapor Canister Vent Valve Still Pops the Code P0446 All lines look good. Only thing I can think of now is replacing the...- LBDelaney
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- Forum: Engine & Drivetrain
