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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 31 (ENGINE CONTROLS - 6.6L - DIAGNOSIS (DTCs P0402-P2636)) >> DTC P0402 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The air flow deviation monitored by the ECM during the EGR operation indicates insufficient EGR flow for 15 seconds.

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