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Home >> Scion >> 2007 >> tC Base, Automatic >> Repair and Diagnosis >> General Information >> Computer Relearn >> Engine Control System (2AZ-FE) >> SFI System >> DTC P0420 Catalyst System Efficiency Below Threshold (Bank1) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

TYPICAL MALFUNCTION THRESHOLDS

Oxygen Storage Capacity (OSC) of Three-Way Catalytic Converter (TWC) Less than 0.07 g