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DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1)
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
MALFUNCTION THRESHOLDS
Detection Criteria
Threshold
Catalyst deterioration level
2WD: 0.6 or more
Catalyst deterioration level
4WD: 0.25 or more
Number of times detection
2WD: 3 times
Number of times detection
4WD: 2 times