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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1053 (Engine Controls And Fuel - 6.6L - DTC P02E7 To DTC P0699) >> DTC P0401 or P0402 >> Conditions for Setting the DTC >> P0402

Conditions for Setting the DTC: P0402

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The ECM calculated air flow deviation based on the MAF sensor input during EGR operation indicates excessive EGR flow for 15 seconds.

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