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Home › Chevrolet › 2004 › Optra5 Base, Standard › Repair and Diagnosis › Engine Performance › System › Engine Controls - 1.6L (L91) - DTC P0336 To DTC P1402 › DTC P0420 › DTC Descriptor

DTC Descriptor

This diagnostic procedure supports the following DTCs:

DTC P0420 Catalyst System Low Efficiency

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