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  1. MOPAR P0420

P0420 / ROVER

Catalyst Efficiency Low Fault Bank A

Notes:

P0420 / MOPAR

CATALYST EFFICIENCY (BANK 1)

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P0420 / JEEP

CATALYST 1/1 EFFICIENCY

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P0420 / GENERIC

Catalyst System Efficiency Below Threshold (Bank 1)

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NOTE: Results from this database are the beginning of the diagnostic process, further investigation should be performed to confirm results before you begin repairs.