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How to beat a P0420 Code for $6 (Using 48 State cats on a California Emissions Car)
Catalyst Efficiency Codes, P0420, P0430 What Is The Fix @UrbanAutomotive01
How to Fix Code PO420 and PO430. Pass Emissions Test.
How to pass emissions test with P0420 and or P0430 (proof)
Can Sparkplug Non-Foulers Fix A Bad Catalytic Converter?
How to Fix P0420 without replacing the Catalytic Converter
How To Pass Inspection with Deleted Cats‼️
EPA vs California Emissions Packages
CA PROCEDURE FOR (AFTERMARKET CATALYTIC CONVERTER VERIFICATION)
4 Tricks to Use to Pass an Emissions Test Every time - [How to Pass an Emissions Test]
What Causes a P0420 Code?
HOW to PASS SMOG CHECK in CALIFORNIA with MODIFIED CAR! #carshorts #shorts
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