Download P0420 P0430 Catalyst System Efficiency Below Threshold – How To Diagnose & Fix – DIY video & save it for offline viewDOWNLOAD THIS VIDEO
In this video I show how I easily tested if the catalytic converter was working using simple checks. If you have any of these faults codes logged I recommend using these step by step methods to diagnose & fix the fault.
P0420 Trouble Code: Catalyst System Efficiency Below Threshold (Bank 1)
P0430 Trouble Code: Catalyst System Efficiency Below Threshold (Bank 2)
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GerardBurke is a qualified motor technician who has completed modules & courses in manual handling and all aspects of workshop safety. These videos are not intended to be used by anyone who is not trained and or qualified to carry them out.
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