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P0430 Diagnostic Trouble Code Discussion for August 2006

Catalyst System Low Efficiency (Bank 2)

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Trouble Ticket Help Requests for DTC P0430
Help Request Posted
1998 Ford Windstar GL 3.8L Misfire VIN: 2FMDA5149W
P0430: cat effieciency below threshold bk 2. ... badly after driven about 30 miles..ok cold.when it misfires it was flagging 4 cylinders.replaced plugs and the misfire went down to 2 cylinders 2 and 5..coil has good spark but the trigger from ecm looks real funny,not at all anything like the vantage,on o...
August 16, 2006