Published On Sep 5, 2024
Got a P0420 Catalyst System Efficiency Below Threshold engine code? No problem! In this quick and easy DIY guide, Iβll show you how to fix it in just 15 minutes with a simple $8 solution. You don't need to be a mechanic to tackle this common issue. Follow along and get your car running smoothly again without breaking the bank!
#diy #p0420 #mechanic #exhaust #howto #catalyticconverter
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MATERIALS & TOOLS USED IN VIDEO:
https://www.joejet.com/journal/v10
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00:00 - Intro
00:27 - What is the P0420 error code
00:24 - What causes P0420 error code
01:14 - How to fix P0420 error code
00:00 - Modifying oxygen sensors
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