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Chevrolet
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2008
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Optra LS, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls And Fuel - 1.6L
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Diagnostic Information and Procedures
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DTC P0420
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Repair Procedures
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Repair Procedures
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
Heated Oxygen Sensor 2 Replacement
Catalytic Converter Replacement (Gasoline Engine)
or
Catalytic Converter Replacement (Diesel Engine)