Sep 30, 2022 · 5. Regular Maintenance: To prevent future occurrences of OBD Code P0420 or other issues, regular maintenance of your Honda Odyssey is crucial. Ensure you get regular emissions tests and smog checks. This not only ensures compliance with regulations but also helps in early detection of potential issues.P0420 is a catalytic converter inefficiency code - if the engine is messed up, and the smoke is blue-ish and smells like burnt oil, your could have a bent valve and be pushing oil out the exhaust which has soaked and messed up the catalytic converter on bank one. ... Odyclub community is the #1 forum to discuss all things Honda Odyssey ...Honda P0700 code indicates a transmission control system fault according to OBD-II engine codes. In addition, there may be a code associated with this transmission or a code associated with the shift solenoid. When a problem in the transmission control system is detected, P0700 is set in the PCM. The vehicle triggers a failsafe mode when this ...P0420 Blues. About 500miles ago, the maintenance light flashed when starting the car, then last night at exactly 112,500mi the CEL came on with a P0420 code according to Auto Zone. Just started stumbling on start-up too (maybe 1/2dozen times in a row). Fuel consumption (16city/19.5hwy) and ride are unchanged.P0420 odyssey threshold catalyst P0420 code Code p2647 2006 honda odyssey 3.5 i-vtec vcm. Check Engine Light Code P0420 Honda Odyssey | Decoratingspecial.com (honda odyssey) diagnosing a p0420 by using 3 methods P0420 code 2011 honda odyssey p0420 and p0430 code keeps coming on and off for theP0302 Code. I have had this code come up over and over, I replaced the coil and the plug, code went away, but something just did not feel right. Every week I would get the blinking check engine light then it went away after sitting for a couple of hours without registering the code. Then I would go another week without the engine light coming ...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 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 ...The most common fix for P0420 in the Honda Element is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Element 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 Element: 1. Check for Other Codes.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").check engine light stays on - code P0420 | Find answers to your 2000 Honda Odyssey question from certified mechanics and auto experts.Help with P0420 code for 2001 Honda Odyssey . I inherited this 2001 Honda Odyssey from my parent's friend's dad. It was 142000 miles when I got it. I was impressed by how clean the engine, exterior, and interior was. It is like he never drove it. I have all the maintenance documents and damn.... this owner was on schedule!How to fix code p0420 or lack of acceleration on honda cr-v and other2004 honda pilot p0304 misfire cylinder 4 diagnosis and repair Honda p0420P0420 pilot. P0430 o2Honda pilot engine light bank check p0420 cat justanswer code had come ex Had the check engine light come on in my 07 honda pilot, read code2004 honda pilot mil check engine code ...Honda Odyssey P0420 Code Possible Solutions Often, the oxygen sensor is the cause of P0420. Specifically it'll usually be the O2 sensor(s) on the upstream side of the catalytic converter. But, don't be surprised if it's not. It would be a good idea to check the exhaust for leaks first. You should be able to hear an exhaust leak easily ...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 ...With he light off my mileage has returned to normal. I ended up making another simulator and installing it on my Honda and have never seen the code again (about 1 year now). What I noticed:-never any catalytic converter smell-loss of 1-2 mpg when the P0420 or P0421 code was present-new upstream and downstream O2 sensors didn't …The codes were P2647 and P0420. My husband drove the vehicle back to the garage (another 150 miles). This time he replaced the rear catalytic converter and gaskets. (another $681) He took it on a test drive and it stalled on him. He said it then started getting P02647 and seemed stumped on what to replace.What Does Code P0420 Mean? OBD II fault code P420 is a generic code that is defined as “Catalyst System Efficiency below Threshold Bank 1”, and is set when the …Definition and meaning of a Honda P0456 Code: Evaporative Emission System Leak Detected (very small leak) Diagnostic Trouble Code as well as fixes. Causes of...This page is meant to help you troubleshoot the Honda Odyssey P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of ContentsWhat Does Code P0420 Mean? OBD II fault code P420 is a generic code that is defined as “Catalyst System Efficiency below Threshold Bank 1”, and is set when the …- P0420 or P0430, and any combination of P0300 through P0306, P219A, or P219B - Go to REPAIR PROCEDURE. - P0300 through P0306, P219A, or P219B only - Go to REPAIR PROCEDURE. No - This service bulletin does not apply. Continue with normal system troubleshooting. 2. Select Honda Systems. 3. Select PGM FI.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+.It was a P0420. After reading this forum on the P0420, I'm hoping someone can help me out for clarity's sake. The AZ guy reset the computer and the light went out. Two tanks of gas later the check engine light has yet to come back on. ... Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service ...(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 fwdCause and Fixes Honda Odyssey Catalytic Converter Emissions Problem.OBDII Codes P1420, P0420, P0430.P0420/P0430 with extremely high fuel trims. I have a 2010 ody now with 200k miles on it. For the past 6 months, the CEL intermittent gets on and off, throwing out a P0420 code. Recently, it starts throwing P0430 along with P0420. SHRTFT1: 100.8% (Short term fuel trim bank 1?)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 ...4 posts · Joined 2020. #1 · Aug 4, 2020. I just changed the alternator on my 2008 Odyssey and now I'm getting P0430 and P0420 code. The alternator change was pretty rough. I got an alternator from Advanced Auto that did not work, got another one from Advanced Auto that did not work, and then I got a Denso that did work (3rd time is the charm).P0420 - catalytic converter system, bank 1 -efficiency below threshold How to fix code p0420 or lack of acceleration on honda cr-v and other Persistant codes p0420 and p0430. 2000 Honda civic check engine code p0420. P0420 check engine code (honda fit) techron, possible causes and remedy Honda code p0420 Code p0420 honda odyssey2005 Honda Odyssey code p0420 bank 1 - YouTube. Subaru impreza engine p0420 engines honda car odyssey code 2010 concept cylinder auto 5l forester brings la show diagnostic now 2002 honda crv p0420 code how to use a defouler to cheat the system P0420 code. how to fix it. don't spent spend tons of $$$. How to fix p0420 code honda civic - latest ...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 ... Im in CA have the p0420 code have smog coming up in january. Do not have the $ for a cat but also dont want to get caught with illegal mods.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 1.2000 Honda Civic EX - P0420 Code Locked-In I've got a P420 code locked in on my car w/101,000 miles. Recently, my distributor dies and was replaced. I also replaced the spark plugs and wires (way overdue). The code popped-in the very next day, will reset for a couple of hours, and then come back in. Is the code due to the recent work on the...Honda code p0420. Honda odyssey p0420: bank 1 location & dtc code explainedP0420 fix customer comments justrolledintotheshop P0420 diagnosing.. Spark plug non fouler for 05 odyssey, p0420 code Check Details Check Engine Light Code P0420 Honda Odyssey | Americanwarmoms.org Check Details Need help troubleshooting 2005 Honda Odyssey codes P0171 ...My luck with chevron techron in clearing up the P0420 code seems to have ended - that was good 5 years. I dose my gas tank 2X and still got the CEL right back. ... Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. Show Less . Full Forum Listing.2000 Honda Odyssey - 117,800 miles -3.5 VTEC Code is P0420 (insuficient flow (bank 1)). I've replaced the Catalytic converter, EGR valve and pulled the manifold to clean and add tube to EGR port. Port … read more2003 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+.Sep 20, 2018 · Here are the most common causes of P0420 in the Honda Odyssey: Likely Causes. Bad catalytic converter; Bad O2 sensor; Other Causes. Exhaust leak; O2 sensor wiring; PCM issue; Overheating converter (usually caused by a misfiring engine, there should be codes) Burning oil (overheats converter, usually no code) Engine not heating up enoughJan 16, 2019 · 72triple said: Bank 1 Cat is located on the fire wall side of the engine. Generally Bank 1 and Bank 2 have naming nomenclature as Cylinder 1 = Bank 1, Cylinder 2 = Bank 2. The number 1 cylinder on these lumps is fire wall side, passenger end. Upstream = pre cat, Downstream = post cat. This is all true except the part in bold above.I wired up my Odyssey using this same method to beat out code P0420 and passed the emissions inspection again last May. It was a lot harder to fool the Odyssey's PCM to take the filter, but I finally found a value it would accept on the 3rd try. I reset the code, ran the van until all 8 monitors were ready, then passed the emissions inspection.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 milesThe 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.If you are a car owner, it is likely that you have encountered the dreaded check engine light at some point. One of the most common trouble codes that many drivers come across is c...P0420 Code Issues. Have a 2013 EX-L with 136k miles and the P0420 code is throwing the CEL. Luckily that is the only code it's throwing. I've changed the Firewall side Catalytic Converter, both upstream and downstream o2 sensors, plugs, and air filter and after clearing the code, it eventually comes back.This page is meant to help you troubleshoot the Honda Odyssey P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. ... If the code changes to P0420, that would indicate that one of the O2 sensors is …P0303, P0304, P0171, P0172, P219A, P0420, or P0420 With Any of the Other Listed Codes AFFECTED VEHICLES Year Model Trim VIN Range 2015-16 Fit ALL Check the iN VIN status for eligibility. BACKGROUND Certain fuel injectors may not have been installed to proper specifications. An incorrectly installed fuel injector may lead ... authorized Honda ...The P0131 code means the computer is seeing the voltage too low for too long. That voltage should oscillate between 100mV and 900mV at least once per second or so. If it stays at 100mV for too long it will set a code. The only way to know what's wrong is to look at some live O2 sensor voltage data.