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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1649 (Engine Control System & Fuel System - Hybrid (Hp2) 6.0L (LZ1) - DTC P0010 To DTC P0308) >> DTC P0300-P0308 >> Conditions for Setting the DTC >> DTC P0300

DTC P0300

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The ECM is detecting a crankshaft speed change indicating a random misfire is occuring that exceeds mandated emission level standards or is at catalytic converter damaging levels.