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Home >> Pontiac >> 2008 >> Grand Prix GXP >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 5.3L - DTC P0420 To DTC P3449 >> DTC P3400 >> DTC Descriptor

July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Descriptor

DTC P3400: Cylinder Deactivation System Performance

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