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Home >> Pontiac >> 2007 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls & Fuel - 3.8L - DTC P0016 To P0340) >> DTC P0300-P0306 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The ECM is detecting a crankshaft rotation speed variation indicating a misfire sufficient to cause emission or catalytic converter damaging levels to exceed mandated standards.