How to fix P0420 ENGINE CODE

This video shows you How to Fix Engine Code P0420 in the easiest, quickest, and cheapest way. 3 practical solutions to fix the P0420 error code. 3 simple DIY solutions to repair P0420. Engine Code P0420: Catalyst System Efficiency Below Threshold (Bank 1). It indicates that the Catalytic Converter is not functioning efficiently, so the vehicle is increasing the output of harmful pollutants. How to clean the Catalytic converter. Tips and tricks for cleaning a catalytic converter in your car and fixing code P0420. Fix Engine Code P0420 Easy DIY Method A | Catalytic Converter Cleaner (1) Get a Catalytic Converter Cleaner (2) Pour into the Gas Tank (3) Run the Engine Fix Engine Code P0420 Easy DIY Method B | Wash the Catalytic Converter (1) Remove the Catalytic Converter (2) Get a Bucket with Water & Detergent (3) Soak the Converter for 10 Hours Fix Engine Code P0420 Easy DIY Method C | Modify the Oxygen Sensor (1) Remove the Oxygen Sensor (2) Prepare the Components (3) Refit the Components (4) Re-install the Oxygen Sensor * SAFTY FIRST * Tight clothing should be worn and jewellery removed to prevent catching. Other appropriate personal protective equipment (PPE) could include safety glasses or goggles, steel-capped boots and protective gloves *before start the job disconnect the battery negative (-)

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