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Home >> Pontiac >> 2002 >> Firebird Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0300-P0306: Engine Misfire Detected >> Conditions For Setting DTC

Conditions For Setting DTC

The PCM is detecting a crankshaft RPM variation indicating a misfire sufficient to cause 3-way catalytic converter damage or emissions levels to exceed the mandated standard.