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P0420 Chevy Cruze: Catalyst System Efficiency Below Threshold
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P0420 Catalyst System Efficiency Below Threshold (Bank 1) | The Motor Guy
P0420 Code: Catalyst System Efficiency Below Threshold (Bank 1) - In
P0420 Code: I Have the Check Engine, VSC, and Trac Off Lights on
P0420 Code: I Have the Check Engine, VSC, and Trac Off Lights on
P0420 Chevy Cruze: Catalyst System Efficiency Below Threshold
P0420 Code: Catalyst System Efficiency Below Threshold (Bank 1) - In
