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=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix HONDA P0420 ====Engine Code HONDA P0420 Saving Re...code p0420 p0430. Jump to Latest ... Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more ...Honda Odyssey Ownership. Problems and Concerns. P0420; enough is enough!! Jump to Latest Follow ... Got the famous P0420 code and it's time for smog test for registration renewal. Instead of going expensive route replacing rear O2 sensor and cat, pour 1/2 can of Seafoam into the gas tank and the other 1/2 to my oil crank case. ...I have a 2001 Honda Odyssey with 90000 miles. Lat last year around Oct/Nov time frame, check engine light came on. I took my vehicle to a local Auto Zone store and they scanned the code and told me it was P0420 - bad catalytic converter. I replaced the cat converter with an after market model, however after 3/4 months (after driving 2000 to 3000 miles), check engine light came on with the same ...My 2005 gives me the P0420 code., but no other code. Once cleared it may come back within 30 minutes or maybe a year later. I put the stuff in the fuel to clean the cat without any noticeable change. ... Bolt - 2006 Honda Odyssey - EX - Ocean Mist Metallic - 110k miles - Bought brand new in August 2006, never any major repairs, possibly the ...2007 Honda Odyssey EX-L P0420 Code. Catalyst Efficiency BelowThreshold (Bank 1). The mileage of my van is 200,000. When they check the code they need to replace the o2 sensor. Then I've tried a second opinion from AutoZone and they advice me to replace Catalytic Converter (s) with new OE Catalytic Converter (s).My Service Records. Registered users can track all maintenance performed on their products by Honda dealers as well as keep a record of maintenance performed at non-Honda service facilities. A complete set of maintenance records allows you to stay up-to-date on your product's service history and can often significantly enhance your product ...2003 Honda Odyssey Code P0420 and related TCS Codes 31-2 / 61-1. Also recieved a note from dealer saying "This is AHM Position regarding P0740." They want to replace the transmission and a computer for...Aug 18, 2023 · If the P0420 code is combined with other codes, try addressing the other codes first There is a Factory Service Bulletin for the following Honda models: 2003–2005 Honda Civic Hybrid ULEV (KA) 2002–2006 Honda Insight With M/T Honda Civic, Insight Factory Service Bulletin OBDII Code P04202005 HONDA ODYSSEY. 3.5L. 6 CYL. FWD. AUTOMATIC. 168,000 MILES. I came across your site as I was trying to learn how to solve a problem. I am the original owner of the van listed above. I am looking to solve an issue with the car "burning" too much oil and determining the true cause of a P0420 engine code (Catalyst System below efficiency).P0154 is a relatively common trouble code. It's generic, which means that it has the same meaning for any vehicle with OBDII ( Honda Odyssey or not). It means that the PCM/ECM is not detecting any activity from the sensor. There can be many reasons for this code to throw. These include a bad o2 sensor, blown heated element fuse, and wiring ...Jul 30, 2017 · P0420 Honda Odyssey - 0 votes . 705 views. asked Jul 30, 2017 by Dan. Reset ECM to erase Code P0420, engine light came back on after driving 75 miles and stayed on ...Oct 19, 2019 · 2007 Honda Odyssey EX-L P0420 Code. Catalyst Efficiency BelowThreshold (Bank 1). The mileage of my van is 200,000. When they check the code they need to replace the o2 sensor. Then I've tried a second opinion from AutoZone and they advice me to replace Catalytic Converter (s) with new OE Catalytic Converter (s).SOURCE: Question regarding a honda odyssey 1999 check engine light codes. Ramon P0420 relates to the catalytic converter. The computer sees little or no improvement in the exhaust before and after going through the converter.Odyssey p0420 converter exl 5at oddy a00 rgl navCheck engine light code p0420 honda odyssey Sensor o2 oxygen p0420 bank p0140 circuit sensors code efficiency catalyst catalytic below system threshold converter clean low located ho2s1998 honda accord check engine code p0420. Check Details. Check Details. Check engine light came on so I took it ...How To Fix The P0420 Trouble Code. Verify the code with an OBD-II scanner and reset the check engine light to see if it comes back. Inspect and replace faulty oxygen sensors. Check for exhaust leaks and repair as necessary. Replace worn-out spark plugs or spark plug wires.Summary. The P3497 code stands for "Cylinder Deactivation System Bank 2," which means there's an issue in engine bank 2 of the cylinder deactivation system. Some common causes of the P3497 code include a low engine oil level, dirty engine oil, and damaged wiring. An illuminated check engine light, poor engine performance, and excessive ...P0305 Honda Meaning, Symptoms, Causes, And How To Fix. An OBD-II P0305 code indicates a misfire in cylinder number 5 of the engine, which was detected by the engine control module (ECM). The code P0305 indicates that enough misfire events have been recorded for cylinder 5 for the powertrain control module (PCM) to store the misfire code.2001 honda odyssey 3.5 has p0420 codes is the oxygen on the front or back is bad or both. is the catalytic bad. which one do i need to replace first. Posted by Rudy Cordova on Mar 05, 201156 posts · Joined 2018. #4 · Aug 25, 2020. P0420 is telling you that the catalytic converter is not working as efficiently as it should. It uses the output of the upstream and the downstream oxygen sensors to determine the efficiency.

Apr 19, 2010. Messages. 13,663. Location. Frisco, TX. Dec 4, 2013. #2. P0420 is "catalyst system efficiency below threshold". The ECU is comparing the pre- and post-catalyst O2 sensors, and is seeing the post-catalyst sensor not registering reduced emissions (slight oversimplification, but it gets the point across).My Honda Odyssey (year 2000 with 130,000 miles) check engine light came on. The code was P0420 which stated the catalytic converter efficiency issue. Is it necessary to replace the catalytic converter? Or, the problem can be solved by clean the oxygen sensor. Thanks. TsaiHonda Odyssey Generation Forums. 2005 - 2010 Odyssey 2005 odyssey engine light on, code p0430, help ... P0420 2001 odyssey I bought my van at 89000 miles and when I got to 150000 I had code p0420 just like what everyone here is talking about. The code had been ON and OFF, some 10k-15k, some a few thousand miles.The P0420 code is a common issue many Honda Odyssey owners may encounter. This diagnostic trouble code (DTC) signifies that the vehicle's computer has detected an efficiency problem with the catalytic converter's performance, specifically that the catalyst system's efficiency is below the threshold for the bank 1.Customer brought me this 2001 Honda Odyssey to confirm if the Catalytic Converter was indeed bad, per Muffler Shop. In this Diagnosis I used three methods: S...

P0420 Code Issues. Tags ... Bolt - 2006 Honda Odyssey - EX - Ocean Mist Metallic - 110k miles - Bought brand new in August 2006, never any major repairs, possibly the most reliable Odyssey on the road Victus - 2012 Honda Accord - EX-L V6 - Crystal Black Pearl - 39k miles - Bought used in July 2022 with 23k milesBolt - 2006 Honda Odyssey - EX - Ocean Mist Metallic - 110k miles - Bought brand new in August 2006, never any major repairs, possibly the most reliable Odyssey on the road ... P0420 code detection is notoriously indirect and possibly inaccurate, so some of the methods to "treat" the condition may work for you vs. failing for others.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Quick overview of cause and fix for a P3400 erro. Possible cause: Honda offers Bluetooth as a standard feature on most of its passenger vehicles, as of.