Do you have a 2005-2008 Honda Pilot, Ridgeline, Odyssey and Acura MDX V6 and are experiencing a code P0420? Watch this video for helpful information.redmondjp. welcome! Do some searches on here for that P0420 code and start reading! I would suggest the spark plug non-fouler modification for the secondary O2 sensor which is the one behind the catalytic converter. It has turned off that code for my car for almost three months now (search for "non-fouler").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.Honda odyssey code p0420 P0420 honda odyssey 2012 honda odyssey p0420 p0430. 2005 honda odyssey code p0420 bank 1. Odyssey americanwarmoms p0420 catalyticP0420 code honda crv Honda code odysseyHonda odyssey p0134 trouble code 1. Top 91+ imagen where is the catalytic converter on a honda accordOdyssey cel I have a 2005 honda odyssey with a 3.5l ...597 posts · Joined 2021. #4 · Mar 21, 2022. P0420 and P0430 just refers to bank 1 and bank 2. Bank 1 refers to the 3 cylinders in front of the car. Bank 2 refers to the 3 cylinders closest to the firewall. The 2006 has four O2 sensors, there is one upstream (before catalytic converter) and downstream (after catalytic converter) for both banks.Odyssey Pilot Ridgeline Failed Part: P/N 36541–R70–A01 Defect Code: 07801 Symptom Code: 03203 Skill Level: Repair Technician DIAGNOSIS 1. Connect the HDS to the vehicle and check for DTCs P0420 or P0430. NOTE: In addition to DTCs P0420 or P0430, you may also see DTCs P2243 or P2247 stored; the tip may have broken off the primary A/F …Honda Odyssey Generation Forums. 1999 - 2004 Odyssey. A twist on the P0420. Jump to Latest Follow 2K views ...Mar 16, 2020 ... Comments14 ; How To Replace BOTH O2 SENSORS on HONDA ODYSSEY (2005-2010). ManiZilla's ToolBox · 88K views ; How to Replace O2 Sensor P2251 - Bank 1 ...Tech Notes. As the code description implies, the P0420 code means that the vehicle's Powertrain Control Module (PCM) has detected that the Three-way Catalyst Converter is not working properly (it is not as efficient as the factory expects). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases, the Three-way Catalyst ...P0420 is a bank 1 cat code (rear bank.) You said the internals came out of bank 2 cat, which if bad would trigger a P0430. Bank 1 is the rear bank and bank 2 is the front bank.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.READ DESCRIPTIONBANK 2 SENSOR 1 DIY VIDEO ~ https://www.youtube.com/watch?v=zmUXM-dbRf8Parts:2005-2006 A/F sensor: https://amzn.to/2KH11Zw2007-2010 A/F senso...Related: P0420 Honda Odyssey . Honda Odyssey P0496 Meaning. P0496 is a universal OBDII trouble code. This means that regardless of which make or model of vehicle, the code will mean the same thing. The code technically stands for: Evaporative Emission System High Purge Flow.May 2, 2022 by Jason. P3400 is a generic OBD2 trouble code. It indicates that your Honda Odyssey's cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. P3400 by itself is not a breakdown risk. Your Odyssey's engine will run just fine on all of its cylinders.The Odyssey Cruise Ship is renowned for its luxurious and unforgettable dining experience. With a wide array of culinary delights to choose from, passengers are treated to a gastro...Honda has issued a transmission recall for the Odyssey model years 2002 through 2004. The 1999 through 2001 model years had an extended warranty because of the transmission, which ...I have the same random P0420 code on my 1999 Odyssey. I had the Honda EGR TSB performed at 92,000 miles. Even though it was past the 80,000 mile warranty Honda paid 1/2 the repair cost. The check-engine light came on while I was on vacation with 99,600 miles on the van.Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. Show Less . Full Forum Listing. Explore Our Forums. 2005 - 2010 Odyssey 2011 - 2017 Odyssey 1999 - 2004 Odyssey 2018+ Odyssey Problems and Concerns.Jul 10, 2009 · M. msavy11 Discussion starter. 86 posts · Joined 2007. #1 · Jul 10, 2009. 2000 EX 138k. The P0420 code has been on for nearly 1-year. I am about to have a cat installed, but wanted to check the forum first to see if there is anything else I need to address since it's gone ignored for so long.Overview of how to fix a Honda with a P0420 Code: "Catalyst System Efficiency Below Threshold (Bank 1)."Possible Causes of a Honda P0420 CodeFailed catalytic...P1456 is a very common trouble code in vehicles made by Honda. It is a Honda specific code, which means that it has the same meaning in any vehicle manufactured by Honda (including Acura). P1456 is typically caused by a faulty or loose gas cap, although there are other issues that can cause it as well. We'll take a look at those directly below.Link: https://amzn.to/3ZnKP6U (Amazon 1 pack) https://amzn.to/3EFtWLJ (Amazon 2-pack)Had a p0420 code for about 5k miles with no performance differ...The P0430 code in a Honda Odyssey refers to a potential issue with the vehicle’s catalytic converter system. When this code appears, it indicates that there is a malfunction or inefficiency in the catalytic converter in Bank 2 of the engine. This can lead to increased emissions and reduced engine performance.Diagnostic trouble code(DTC) P0420 stands for “P0420 Catalyst System Efficiency Below Threshold (Bank 1).”. It indicates that the exhaust system’s oxygen levels are below the required threshold in Bank 1, which can damage the engine’s exhaust and fuel system. Bank 1 refers to the side of the engine that houses the number one cylinder.(honda odyssey) diagnosing a p0420 by using 3 methods P0741 honda pilot 2010 honda odyssey p0301 cyl 1 misfire diagnosis service bulletin 13. 2012 honda odyssey has the code p0980, has the d light flashing, it. 2005 honda odyssey exl issues: 1. error:... 2005 honda odyssey exl P0741 honda Odyssey p2647 2005 8c38 ee65. Passenger fwd7371 posts · Joined 2020. #2 · Jan 7, 2024. DTC P0420 Rear Bank Catalyst System Efficiency Below Threshold (Bank 1) if your VCM is still active, suggest you read the VCM megathread. Shaque-ymm.2015 Honda Fit, 2014 Honda Odyssey EX-L, 2003 Honda Odyssey EX-L, 1972 Alfa Romeo Spider - in project status. Save Share. Like. New Dad New Van. ... P0420 code and emission test My 99 Odyssey with 95,000 miles has been turning on the check engine light intermittently for around a year. I had emissions testing coming due so about 4 weeks ago I ...redmondjp. 538 posts · Joined 2008. #5 · May 1, 2013. It's sensors (plural) in this case - the secondary ones: Bank 1 Sensor 2, and Bank 2 Sensor 2. RIP: 2001 Odyssey EX 235K miles, 77K miles on the 1st transmission, 30K on the 2nd, 128K on the third (engine still ran great), Dextron III ATF with Lubegard Friction Modifier (black bottle ...Solutions to Fix the P0420 Code in Your Honda Pilot. Now that you've diagnosed the root cause of the P0420 code in your Honda Pilot, it's time to address the issue. Here's a comprehensive guide to fixing the most common causes: 1. Replacing the Oxygen Sensor. If your diagnosis points to a faulty oxygen sensor, especially the downstream one:If your Honda Odyssey has a sputter, it is most likely going to be caused by bad fuel system, ignition system, MAF sensor, or bad catalytic converter. Your Odyssey’s engine is a giant pump. It pulls in air (where it is measured by the mass airflow sensor). The air is then guided into the cylinder where fuel is added and compressed.May 9, 2018 · OBD2 - confirmed: P0420 - Catalyst System Efficiency Below Threshold Bank 1 & P2096 - Post Catalyst Fuel Trim System Too Lean Bank 1. OBD2 - pending: P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) & P2097 - Post Catalyst Fuel Trim System Too Rich Bank 1.Honda odyssey code p0420 P0420 honda odyssey 2012 honda odyssey p0420 p0430. 2005 honda odyssey code p0420 bank 1. Odyssey americanwarmoms p0420 catalyticP0420 code honda crv Honda code odysseyHonda odyssey p0134 trouble code 1. Top 91+ imagen where is the catalytic converter on a honda accordOdyssey cel I have a 2005 honda odyssey with a 3.5l ...This forces your vehicles computer to make incorrect assumptions about what is going on with your vehicle. That is why the p0420/p0430 code can appear instead of the O2 sensor failure code (s). This partial O2 failure or "laziness", as some call it, can also account for the intermittent nature of the code and engine light.2012 Honda Odyssey EX-L. 108,270 Miles. Houston, TX. (but the majority of miles were in Southern CA and MA) I had a CEL, using my BlueDriver Bluetooth OBDII Scanner, I pulled Code P0420 - "Catalyst System Efficiency Below Threshold Bank 1" After reading a bunch of posts on this forum, the first suggestion seems to be to replace all 4 oxygen ...Jan 5, 2024 · The codes P0420 and P0430 indicate that the catalytic converters are not performing as efficiently as they should be. This could be caused by various factors, such as excessive oil consumption, misfiring, faulty oxygen sensors, or poor fuel quality. The most common fix for P0420 and P0430 in the Honda Odyssey is to replace the catalytic ...P0456 Indicates that there is a small leak in the evaporative emission control system. It often appears with or is related to other codes, such as P0420, P0441, and very often P0440. P0456 is normally not an immediate threat to the driveability of your Odyssey. Certainly, anytime the service engine soon light is on, it's good to deal with it ...Anyways, just today I decided to scan with my Actron, and got P0420 and P1457. I searched about the P0420 code and came up with possibilities like the cat might be clogged and may need to be replaced. ... 2000 Honda Odyssey LX 1994 Toyota Corolla DX 1991 Honda Accord EX Coupe 1990 Infiniti M30 Coupe. Save Share. Like. Sort by Oldest first ...2001 Honda Odyssey P0420. ... Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. Show Less . Full Forum Listing. Explore Our Forums. 2005 - 2010 Odyssey 2011 - 2017 Odyssey 1999 - 2004 Odyssey 2018+ Odyssey Problems and Concerns.Hello! 2013 odyssey exl 132,000 mileage. Getting a p0420/0430 catalyst code. Was reset but comes back on. I’ve read many things from replace front 2 oxy sensors, to replace all 4, To replace the catalytic converters. Has anyone ran into this yet? Don’t want to throw thousand dollars into...The meaning of the P0420 code on a Honda Accord is a "Catalyst System Efficiency Below Threshold (Bank 1).". This code indicates that there is a potential issue with the catalytic converter in the exhaust system. It is important to have this issue addressed by a qualified mechanic as it can affect the vehicle's emissions and overall ...The P0420 engine code indicates the catalyst system efficiency is below the threshold (Bank 1). A P0420 code indicates a problem with the catalytic converter, more specifically. The purpose of the catalytic converter is to break down harmful pollutants created during the combustion cycle. By using fine platinum and gold meshes to filter exhaust ...This is DFOURFIXIf you guys wanna support your boy don't forget to subscribe, like, comments and share today i had replace 02 sensor bank 2 sensor 1 on the 0...TSB for P0420 -- catalytic converter has deteriorated. I wanted to send a quick thanks to those who have posted so much information regarding the illusive P0420 code. I'm in the middle of battling this issue ('00 Odyssey 104k miles) and have found your insight invaluable when dealing with our local dealership.Non-foulers are very effective at making a P0420 go away. The way I understand it, the engine maintains a balanced mix of fuel and air by trimming the amount of fuel injected to constantly alternate between too rich and too lean as read by the upstream O2 sensor. ... Bolt - 2006 Honda Odyssey - EX - Ocean Mist Metallic - 110k miles - …Honda's Federal Emissions Warranty covers your 2020 Odyssey for a minimum of three years or 36,000 miles. This coverage extends to 50,000 miles in select states, thanks to the manufacturer's California Emissions Warranty coverage. This Emissions Warranty protects the components that make up your minivan's smog control systems, including ...By July 2008, at 190,000 miles, the P0420 code stayed on all the time and I replaced the converter ($600. online at Majestic Honda + $70. labor at local muffler shop) to pass inspection. I have not seen the CEL on since then. I currently have 233,000 miles on the van. still using the original oxygen sensors.Honda odyssey 439b 9c19 a26c P0420 diagnosing (honda odyssey) diagnosing a p0420 by using 3 methodsP0171 p0174 sensor lean bank system too oxygen fuel ecu Honda p0420 odyssey 2005 45e8Need help troubleshooting 2005 honda odyssey codes p0171/p0174 and p0420.. P0171 trouble code (1995-1997 2.2l honda accord and odyssey)Need help troubleshooting ...Honda Odyssey Engine Codes P0497 P145C Purge ValveThe most common cause of the P0420 engine code is a degraded catalyst. Catalytic converters/catalysts break down over time and can also become clogged. Cylinder misfires will significantly reduce ...If you’re looking for a truly luxurious and unforgettable vacation experience, look no further than the Odyssey Cruise Ship. With its world-class amenities and top-notch service, t...When the OBD Code P0420 is triggered in a Honda Odyssey, the check engine light will illuminate on the dashboard. This light is a warning sign that there’s a malfunction in the vehicle’s systems.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 $6000+.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. ... Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. Show Less . Full Forum Listing. Explore Our Forums. …Hey guys, I recently purchased my first Honda Odyssey! It's an 05 Touring model with 117k miles, the check engine light recently came on with a P0420 code. (Bank 1 catalyst system efficiency below threshold) I assume I need to replace the CAT, but wanted to check with you guys to see if you think anything else is needed.The P0420 code is a generic diagnostic trouble code that indicates a problem with the catalytic converter's efficiency in the exhaust system. It can be caused by various issues, ranging from faulty oxygen sensors to engine misfires or fuel system issues. Suppose you suspect your Honda car has this code. In that case, it’s recommended to …In today's video Mike and Drew review the ramifications of not dealing with a P0 420 trouble code on a 3.5 L Honda engine.Leaving it too long will cause cata...Then I got a code p0420. I changed both o2 sensors denso from rock auto. P0420 Code came back I put in a new walker cat. then today the code came back. ... Bought brand new in August 2006, never any major repairs, possibly the most reliable Odyssey on the road 2010 Honda Accord - LX - Polished Metal Metallic - 92k miles - Bought used in ...Honda Odyssey Ownership. Problems and Concerns. P0420; enough is enough!! 28106 Views 73 Replies 14 Participants Last post by awdsyco, May 22, 2013. S. shsu Discussion Starter ...Here is the Honda Advanced Diagnostics info for DTC P0420: Rear Bank Catalyst System Efficiency Below Threshold (Bank 1) ... Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. Show Less . Full Forum Listing.The Fleet: Victus - 2012 Honda Accord - EX-L V6 - Crystal Black Pearl - 37k miles - Bought used in July 2022 with 23k miles 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 roadConclusion. The P0420 code is a generic diagnostic trouble code that indicates a problem with the catalytic converter's efficiency in the exhaust system. It can be caused by various issues, ranging from faulty oxygen sensors to engine misfires or fuel system issues. Suppose you suspect your Honda car has this code.P0420 - Honda Accord The check engine line (CEL) came on and we took it to Autozone to get a free code reading. It was P0420, which turned out to be a very popular code for all Honda Accords. We have a 1999 Honda Accord LX with 140K miles. We called several local Honda dealership and received an estimate of $1K to replace the catalytic ...Does Cataclean really fix a P0420 / P0430 error code and catalytic converter. Cataclean Link: https://amzn.to/33t8RVQ Second channel for easy to follow Home ...Nov 11, 2012 · 2008 Odyssey Touring non-PAX Silver Pearl Metallic w/ Black Interior Mobil 1 5W-20 with Honda Oil Filter 15400-PLM-A01 or 15400-PLM-A02 Shell (or other Top-Tier Gas) Honda Care 6yr/120K from Bernardi Honda WeatherTech FloorLiner (1st, 2nd, 3rd Row) WeatherTech Cargo Liner (Coverage Area: Behind 2nd Seat)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 milesWith a new Honda Odyssey oxygen sensor from AutoZone in your minivan, you'll also enjoy better performance and fuel economy. Based on the information your minivan's oxygen sensor produces, your engine's computer reviews the data and adjusts how much fuel it needs to run. If your Odyssey starts to use more fuel than it actually needs and you ...How to remove 2004 2005 2006 2007 2008 2009 Honda Odyssey catalytic converter bank 2If this video helped you and feel like donating anything I would apprecia...The P0420/P0430 codes come up when the rear O2 sensor thinks the cat isn't working, i.e. the exhaust going in reads the same as the exhaust going out. ... Honda Odyssey Forum. 1.1M posts 414K members Since 2000 Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. ...Honda Odyssey Generation Forums. 1999 - 2004 Odyssey. P0420 after trans filter today. 3559 Views 27 Replies 7 Participants Last post by paulgoh, Aug 8, 2007. Riggs Point ...Repair Information for P0420 Honda code. Learn what does P0420 Honda Catalyst System Efficiency Below Threshold Bank 1 means and how to diagnose p0420 code H...I have a 2013 Honda Odyssey with 127K miles that recently got a check emission light that came on. I checked the code and only got a P0420... and no other co...In today's video Mike and Drew review the ramifications of not dealing with a P0 420 trouble code on a 3.5 L Honda engine.Leaving it too long will cause cata...Repair Information for P0420 Honda code. Learn what does P0420 Honda Catalyst System Efficiency Below Threshold Bank 1 means and how to diagnose p0420 code H...The most common fix for P0420 in the Honda Shuttle is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Shuttle into an exhaust shop for an (expensive) new catalytic converter, let's ensure that's what you need. Here's a good P0420 diagnostic order for the Honda Shuttle: 1. Check for Other Codes.Le défaut P0420 allume le voyant moteur du tableau de bord, il peut être la cause d'un problème relativement grave ou d'une pollution du véhicule. Dans le cas ...You could ignore VCM and then you'll probably have P0430's brother, P0420, to deal with later. The Fleet: 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 ... Bolt - 2006 Honda Odyssey - EX - Ocean Mist Metallic - 110k ...Getting ready to sell my Ody and I had my mechanic replace the bank 1 cat (was throwing P0420 code previously) After installing the cat. I reset the computer, and luckily the new cat cured the P0420 code. However, after driving the car for about 5-days and over 100-miles, i'm still getting 'EVAP not ready' in the readiness monitor.Jul 30, 2017 · answered Jul 30, 2017 by anonymous. P0420 is for the catalytic converter not cleaning the burnt fuel effectively, most likely the catalytic converter you will have to reset the code drive it and see if the monitors complete. Reset ECM to erase Code P0420, engine light came back on after driving 75 miles and stayed on. What may be causing this?2006 Honda Odyssey p0420. My malfunction indicator light came on about 900 miles ago. I took it to Autozone and they told me I have the catalyst efficiency below threshold (p0420) trouble code and it is probably an O2 sensor. On the advice of a mechanic friend I put a can of Seafoam in it with a tank of super unleaded and a can of STP octane boost.P0420 is a catalytic converter efficiency code. There's a chance that it's a false alarm, so don't rush to have someone look at it. Rarely, it might mean that an oxygen sensor is malfunctioning, but not so bad as to be diagnosed as an oxygen sensor failure. A failing oxygen sensor would affect engine performance; if you start seeing that, a ...I am getting (2) abs codes on a 2011 honda odyssey (3.5l): 83-1 and 26Odyssey honda 2000 Honda odyssey wiring diagram 2007Check engine light code p0420 honda odyssey. 44a9 a930Odyssey honda start Odyssey p0420 converter exl 5at oddy a00 rgl nav. Check Details Check Details. 2007 HONDA ODYSSEY Service Repair Manual. Check DetailsApr 30, 2021 · =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix HONDA P0420 ====Engine Code HONDA P0420 Saving Re...READ FULL DESCRIPTION Here's how to replace the O2 sensor (sensor 2) on a honda odyssey. NOTE: This is not to be confused with the A/F ratio sensor! (sensor ...Non-foulers are very effective at making a P0420 go away. The way I understand it, the engine maintains a balanced mix of fuel and air by trimming the amount of fuel injected to constantly alternate between too rich and too lean as read by the upstream O2 sensor. ... Bolt - 2006 Honda Odyssey - EX - Ocean Mist Metallic - 110k miles - Bought ...Honda Odyssey Ownership. Problems and Concerns. P0420; enough is enough!! 28106 Views 73 Replies 14 Participants Last post by awdsyco, May 22, 2013. S. shsu Discussion Starter ...I have a 2013 Honda Odyssey with 127K miles that recently got a check emission light that came on. I checked the code and only got a P0420... and no other co...Honda Odyssey Generation Forums. 1999 - 2004 Odyssey. P0420. Jump to Latest Follow 2K views 2 ...TSB for P0420 -- catalytic converter has deteriorated. I wanted to send a quick thanks to those who have posted so much information regarding the illusive P0420 code. I'm in the middle of battling this issue ('00 Odyssey 104k miles) and have found your insight invaluable when dealing with our local dealership.2018 Odyssey ALL 5FNRL6…JB000001 thru 5FNRL6…JB014844 REVISION SUMMARY Under AFFECTED VEHICLES and SOFTWARE INFORMATION, 2016 Pilot has been removed. For 2016 Pilot with these symptoms, see service bulletin 20-100, Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (With Software Update). SYMPTOMHonda Odyssey Generation Forums. 1999 - 2004 Odyssey. 2001 ex - p0420. Jump to Latest Follow 10K views 3 ...P0430 Definition: Catalyst System Efficiency Below Threshold (Bank 2) During the combustion cycle of your vehicle, the catalytic converter converts harmful pollutants into less harmful gases by breaking them down. Consequently, the vehicle will emit more harmful pollutants due to a malfunctioning catalytic converter.#p0420 #p0430 #catalyticconvertercodes #badcat #autel #motor, Repair Manuals: https://shrsl.com/3zwnv https://sovrn.co/amfaf3n Fix it Angel EBAY STORE: ht, Honda Odyssey Generation Forums. 2005 - 2010 Odyssey. 2008 odyssey 203k miles p0420. Jump to Latest Follo, I have a 2000 honda odyssey that has thrown a p0420 code. My ODB when checkin, Sometimes P0420 can be caused by O2 sensors as well. And it's a good idea to replace the O2 sensors w, 56 posts · Joined 2018. #4 · Aug 25, 2020. P0420 is telling you that the catalytic converter is not working as effici, Persistant codes p0420 and p0430 Odyssey p0420 converter exl 5at oddy a00 rgl nav P0430 co, Sep 30, 2022 · Overview of how to fix a Honda with a P0420 Code: &, August 14, 2023 by Jason. P0507 is a fairly typical, 1. Check Engine Light Illuminated. The most obvious and direct , Honda Odyssey P0420 Code Possible Solutions Often, the oxygen sen, Jan 5, 2024 · The codes P0420 and P0430 indicate that the , Honda Odyssey Generation Forums. 1999 - 2004 Odyssey. A twist on the , About Press Copyright Contact us Creators Advertise Develo, Apr 19, 2010. Messages. 13,663. Location. Frisco, TX, This would have the same effect (extra-rich exhaust), but, Apr 19, 2010. Messages. 13,663. Location. Frisco, TX. Dec 4, 2013. #2, What Does Code P0420 Mean? OBD II fault code P420 .