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P0430 Diagnostic Trouble Code Discussion for April 2013

Catalyst System Low Efficiency (Bank 2)


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Trouble Ticket Help Requests for DTC P0430
Help Request Posted
2010 Buick LaCrosse CXL 3.0L MIL Lamp on VIN: 1G4GL5EG8A
P0430: catalyst efficiency. Vehicle came in for Cat efficiency codes, Scan tested and road tested . when throttle is snapped while graphing o2 sensors the spike in the pattern seems to occur at the same time on pre and after cat sensors. At a recent snap on course it was stated there sho...
April 01, 2013