P0420 Subaru Wrx
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Subaru p0420 Subaru p0420 catalyst code troubleshooting and solution. P0420 is triggered when coasting in gear. suggestions? see more info
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('06-'08) - 2006 - P0420 code again and again? (merged thread
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Catalytic converter and oxygen sensor replacement P0420 2007 Subaru
Gen 2 - P0420 caused by erratic rpm? | Subaru Outback Forums
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