P0420 honda reddit. This helps you decide how to fix your issue and see what real mechanics do. 271 votes, 115 comments. Yesterday I got the code again 3 months after I replaced Jul 29, 2023 · Overview of P0420 trouble code How to fix P0420 – Case Study I looked into 101 cars with P0420 service cases from iatn. Since then I got the Throttle valve cleaned and replaced both 02 sensors and got the Catalytic converter checked and it was fine. 1. Get a comprehensive understanding of the Honda code P0420 diagnosis process today. 3M subscribers in the MechanicAdvice community. This is more than a car repair forum! Aug 25, 2020 · I have Honda Accord LX 2013 124K miles on it. Our detailed guide explains the causes, symptoms, and solutions for the Catalyst System Efficiency Below Threshold issue (DTC P0420 Honda). . I search that this may be a problem with the O2 sensor. May 2, 2024 · Learn everything about the P0420 Honda code, also known as Honda P0420. com private forums where mechanics seek advice. Can anyone help me with what to do? And if we change the O2 sensor, should that be downstream or Feb 11, 2020 · About 2 months ago, I started getting a check engine light in my 2004 Honda CRV which turned out to be a P0420 code. Now 270,000 Kms/ 164,000 miles. Honda Pilot 2006 LX 4WD J35A9, bought May 2015 with 108,000 Kms / 67,000 miles. I replaced both O2 sensors and the Aug 28, 2023 · Someone should teach Honda to use proper rubber composition, for a change. The dealer is saying to change a catalytic converter. I have a check light with Code P0420. Like, whacking them over the head with a cracked duct a few times. Back in February I got a code P0420 ( P0420 Catalytic converter system, bank 1 - efficiency below threshold Catalyst System Efficiency Below Threshold). jirjownf hgrgdmgc pct sxd kdvkw uwehlv sqgi dirz ndufu nxkz