P0420 honda reddit.
Think of the P0420 along this line.
P0420 honda reddit Last Year, I drove the car for roughly 500 miles until the system self-healed and fixed itself. Today I got a check engine and went to a diagnostic center and the only error he got was P0420, which from what I saw online is a problem with the catalytic converter. It stays on for awhile, then goes away, then comes back and it goes on and on. I recently purchased an elm327 and the torque app to analyze how to engine is doing since the valves were adjusted and I bypassed the P0420 code. I took it to the local Autozone, who ran a diagnostic which revealed a P0420 code, and suggested I needed to replace my catalytic converter. Honda's can get a similar rev bouncing at idle from a clogged or bad idle air control valve. A subreddit for Honda Element enthusiasts! The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and Hello! I have a 2002 Honda Civic LX 5-speed that I bought from a dealer back in May. M catalytic converter placed along with Honda O. This subreddit has gone dark as part of a mass protest against Reddit's recent API changes, which break third-party apps and moderation tools. Open comment sort options The Reddit home of Mazda's best model, CX-50. Honda has diagnosed the solution as the replacement of the catalytic converter due to age. upvotes · comments. The catalytic converter on your vehicle has probably died, which then makes your downstream 02 sensor read richer values. Our detailed guide explains the causes, symptoms, and solutions for the Catalyst System Efficiency Below Threshold issue (DTC P0420 Get the Reddit app Scan this QR code to download the app now. Today, I was driving for about 15 View community ranking In the Top 1% of largest communities on Reddit. Go to Honda r/Honda. Content on 8thcivic. Came back with P0420 code for Bank 1. P0420 is one of the more common I recently became a new owner of a 5th gen prelude and was going down the list of things to look over/routine maintenance and doing a scan, got a P0420 code for the cat? Previous owner said that the CEL was on due to the EGR valve being bad/dirty. If you find a P0420 code in your Subaru or Honda, it’s most likely the catalytic converter to blame. Members Online. 1250 sounds great but also aftermarket so I’m trying to decide the benefits and cons of each. com is generated by its users. Related Honda Honda Fit Cars and Motor Vehicles Honda forward back r/headphones A place for discussion, news, reviews and DIY projects related to portable audio, headphones, headphone amplifiers and DACs. 23 votes, 10 comments. Or check it out in the app stores 2017 Honda Accord cvt at 93k miles. the downstream O2 sensor reading should be fairly steady. With all its problems, I only use the car to commute to work with an average of ~15 miles a day. 4 liter. This is the Reddit community for EV owners and enthusiasts. Join Code: P0420 on Honda accord 2013 upvote · comments. I need Hey everyone so about 6 months ago, check engine light came on and threw a p0420 on my 2017 Honda Accord. 2011 Fit Sport 5M Related Honda Honda Fit Cars and Motor Vehicles Honda forward back. My scan tool shows codes P0420 (Catalyst Systems Efficiency Below Threshold Bank 1) and P219A. I installed the svcm at 90k miles, car currently has 125k miles. Most likely it is your cat converter. p0420 code suggestions . I reset the code and changed the air filter. Shop specifically diagnosed converter but light came back. New comments cannot be posted and votes cannot be cast. This could be mean: Gas cap not tightened properly Bad Oxygen Sensor Bad Catalytic Converter I checked the gas cap. Honda Civic P0420-should I replace cat? So I have a 2006 Honda Civic with a P0420 CEL. P0420 Code popped up as I drive away from inspection? 2012 V6 Honda Pilot Touring - 166k miles P0420/P0430 is super common on those, even at lower mileage. 39 posts · Joined 2022 Add to quote; Only show this user #1 · Oct 1, 2022. 4L with code P0420 help. The dealership diagnosed it as a faulty catalytic converter. What I 3. 2K views 6 replies 4 participants last post by Rockey Oct 22, 2022. In general do you think it would be ok to drive it in to work and back (18 miles) or am I asking for more problems not less. Not a car guy. Diagnosing/Repair So, a car dealer swindled me and gave me a car with engine code P0420 (they deleted the engine code before i bought it) P0420 Diagnosis: Honda Prelude. Thank you for your input! P0420 & P0430 Emissions Tests Cheat Codes? I recently picked up a 97 Mercury Mountaineer with a 5. I have a 3 years old 2017 Honda Civic with 32k miles on it. ALL THINGS TOYOTA 100,000 DRIVERS STRONG! Spez: https Is your honda stock? I battled a p0420 in my subaru forester for a couple of years. leaking injectors, other bad sensors, clogged air filter, etc. Took it back to the selling dealer who got the same code and ordered a replacement catalytic converter, which arrived 3 days later. You should probably look at your other issues first as this one usually comes up as a result of other issues like a side effect. That's just parts only. I used a scanner to graph the two o2 sensors to confirm its the convertor. Or check it out in the app stores TOPICS P0420/30 are catalytic converter codes. Or check it out in the app stores For P0420. Then I changed out the secondary 02 sensor on someones advice here (I didn't believe it) and the P0420 went away and hasn't come back. i just wanna ask what yall In January, I had my bi-annual smog check. Today check engine comes on and it’s the same code. latest guess is Hey all, I have a 2011 Honda cr-z at about 201k miles and the engine light came on as I was driving back from home to school. Car has 179,000 miles and is in fair shape at best. They did the work, I drove home and the next morning, you guessed it, CEL - P0420. I got it read at Autozone and got code P0420. Crypto Some background on this code: There are two O2 sensors. I would definitely suspect a bad cat if there are no other codes, p0420 is rarely wrong. It occasionally turns off for a few days 4 Hours after getting it home it threw a CEL, scanned and was P0420, Catalyst System Efficiency Below Threshold (Bank 1). As far as hurting anything, not a chance. except for a ULEV one from a 98-02 accord as my mom's car with 77k on I received the dreaded P0420 code today, and our check engine light is on. P0420 codes can be caused by a bad cat (most common), a bad 02 sensor (since that's the sensor that tests the cat), an exhaust leak, a bad PCM, and probably a few other things, but a bad cat is by far the most common. thanks P0420 2004 Honda Accord EX 3. I took it to 2007/Honda/Ridgeline p0420 help So as the title says, my moms ridgeline has been having problems for probably the last 10k miles where the CEL comes on for P0420. New here! So I received a P0420 code for my vehicle and decided to use fuel cleaner to see if it was a minor issue and not the CAT needing replacement. Scanner said “P0420, check for Good news is, the P0420 code is very easy to remedy just so long as you don't care about emissions. I had some readings from OBD2 scanner that you can check out. It has about 115k miles and I have not had any problems with it. For those absolutely stupid things that you see people bring, roll Get the Reddit app Scan this QR code to download the app now. here we go with this code - the catalytic converter has an oxygen sensor in front and behind it. It used to turn off by itself and I had no issues passing smog here in California. One in front of the catalytic converter and one behind it. All Things Civic Related. shortly after the P0420 showed up it developed a misfire which was visually diagnosed as bad plugs. 2016 Focus st3 with 68k miles 2003 Honda CrV LX P0420 code question View community ranking In the Top 1% of largest communities on Reddit. It was tight and good. Once they figured it out, the computer realizes that the cat is less than optimal efficiency, throwing the p0420 code. It's the dreaded P0420( the catalyst system efficiency of your car is below threshold (Bank 1). I like the Synthetic Valvoline. I got a check engine light and I got a code say it’s P0420 which means “bank 1 catalyst efficiency below threshold” Hi all, I have the p0420 code on my v6 accord. You can get around this problem by using an 02 defouler. I replaced both bank 1 02 sensors and tried redline fuel cleaner multiple times. The unofficial but officially recognized Reddit community discussing the latest LinusTechTips, TechQuickie and other If you end up figuring out you need a new cat, it's quite expensive but get a factory OEM Honda cataftermarket ones don't work as well as a Honda and you'll end up with the 420 code again. 2006 Honda Pilot P0420 & P0430 Hello got a 2006 Honda Pilot 250k miles has a code P0420 and P0430 from what I hear and have read it could be bad cats both upstream and downstream cats is this right? I have not owned this vehicle ever 1st time used car that I bought with Your Reddit home for all things related to the Honda CR-V! Curious where that table is? data. Yesterday it threw a CEL for P0420. My registration just expired and I need to pass DEQ (Oregon) before renewing my registration. The Learn everything about the P0420 Honda code, also known as Honda P0420. It has popped up 5 times in the past month and a half. P0420 . I don’t think there is Honda according to 2016 p0420 catalytic converter problem I went to the dealer and had the “emission system problem” warning self scan p0420 code. For the P0420 check cats dont die, they are killed by other failing components. P0420 is an EVAP code if I remember correctly, tied to catalytic converter efficiency. ++ We look forward to seeing you I recently purchased a used 2011 Honda CRV EXL, and had the check engine light come on. Honda Element Honda e Honda Honda Electric vehicle Cars and Motor Vehicles comments sorted by Idk if it helps, but look up p0420 Repair or Sell - P0420 Code - failing catalytic converter. Asking about a second opinion (ie "Is the shop trying to fleece me?"), please read through CJM8515's post on the subject. Sometimes, and I've experienced it myself, just replacing the 02 sensor after the cat can make this code go away. Is it worth investigating any other parts, or is it pretty much certain the cat is bad? Code P0420 on Honda CR-V . Said that a replacement converter would be $800-1000 (but might trigger a code from the O2 sensor) or $2-3k for an OEM part. Thanks for posting on r/MechanicAdvice!This is just a reminder to review the rules. The most common fix for P0420 in the Honda Fit is a new catalytic converter, followed by an O2 sensor replacement. I have a 2014 Honda Accord (4-cyl CVT) and today I got a check engine light. Posted by u/FlatRateMechanic - 4 votes and 1 comment Hi guys, a couple days ago my engine light came on and I had the engine checked the next day at an autozone. New comments cannot be posted and votes Engine light is on and the code pulled was P0420 which indicates a cat issue. On the second day, engine Typical P0420 criteria is the O2 sensors don't have any faults, as they are tested by the pcm at start up, and are able to switch across the . as the cat is passive and needs to be supplied a specific exhaust and partially burned hydrocarbon mix to work properly. We had the check engine light come on. Fast forward 2 years, I start getting the P0420 code and some not great exhaust smell when the car is running. I had an O2 sensor heater circuit engine ligjt for quite some time. r/GrandCherokee. typically the P0420 code triggers the malfunction lamp if the readings of the two sensors are The p0420 sets when the downstream sensor sees a similar signal as the upstream sensor. 4L i4 just started throwing a P0420, no other codes. I have not been driving it much recently due to COVID lockdown. Has anyone had this problem, or can you offer a solution to this? I It came back with a single P0420 code. This is the one that's before the cat just after the exhaust headers come together. It can also be caused by an exhaust leak or a bad oxygen sensor. I've had the 420 code on mine for many years still get great gas mileage. P0420 Honda Accord questions My 2014 Accord EX-L with 2. 2004 honda accord 2. you will throw codes P0420. 2004 Honda Accord getting a p0420 code cats to go bad so quickly. However on the paper it just shows 2015/2016 years. As I stated before there is a specific code for post cat lean condition and that code is p2096. 4 Inline-4 5-speed manual I got check engine light. This Year, right upon inspection the code has returned. I'm working on my 08 odyssey (j35a7 engine) and I'm getting P0420 and P0430. 0 Automatic Hello everyone my car is giving a p0420 which I know means the catalytic converter is bad. Back in February I got a code P0420 ( P0420 Catalytic converter system, bank 1 - efficiency below threshold Catalyst System Efficiency Below Threshold). Before taking your Odyssey into an exhaust shop for an 13K subscribers in the AutomotiveLearning community. 5 months ago I had changed the sparkplugs (first time) I noticed there were some engine misfires that manifested by the engine loosing power when idling and slightly erratic rpms when idling My brother has a 2006 Honda Pilot 3. The most common fix for P0420 in the Honda Prelude is a new catalytic converter, followed by an O2 sensor replacement. Posted by u/JazzFluteDabbler - 1 vote and 3 comments Hey guys, my 2005 Honda accord just over 200k miles on it just had its check engine come on bold not blinking. O2 sensors. I used the OBD-II tool to diagnose. however, there are other reasons the system can run rich. The cat shouldn't be making your gas mileage get cut in half. but i live somewhere where 20 degree highs during the winter are common. when the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. Code: P0420 I took it to Honda dealership and several hours later they diagnosed that the I bring it in again. She bought it at 135k and it seems to have been neglected a bit. 2003 Honda Accord LX 2. However, it started to Mechanic told me that in my car the p0420 check engine code can be set when catalytic converter loses 5% of the efficiency. If you ONLY have a p0420 code and nothing else, i recommend you clear the code, and then take the car on a long highway drive, atleast 2 hours. 0 V8 from an auto auction. Honda Accord 2004 - code P0420, catalytic converter, replace or wait? I was quoted $500+ to replace the cat. Or check it out in the app stores TOPICS Had a check engine light come on with code P0420 (yeah, I keep a freaking code reader in my car at this point). Hi all, 2010 Honda Accord v6 w/ 130k miles and my CEL came on last week and this is what the diagnostic code at AutoZone churned out. Hey guys, my catalytic convertor, down pipe, and o2 sensors were stolen on my accord. Or check it out in the app stores TOPICS. I got her rescanned in case it was something else, still code P0420. Rockey Discussion starter. Honda Accord 2019 1. Rear o2 sensor replacement might sometimes fix P0420 but that's very rare. I'm going to try from the least expensive fix to the most I have a 3 years old 2017 Honda Civic with 32k miles on it. All the pedestrians are evenly spaced. Labor I think its 3 to 4 hrs to do both banks. r/Toyota. The CEL with this code started coming on intermittently about 1. A couple days ago I got a check engine light code P0420 bank 1. What are the chances that this is an O2 sensor Just replace the cat, hollowing it out is going to drastically increase the amount you pollute and your car will smell like unburnt fuel. (Honda cbf 600) r Usually P0420 is a bad cat, but not always the case when you've got a downstream O2 sensor out as well. Code: P0420 . P0420 Code Honda Accord 2016 . 4) for more than 8 months (6000 miles), when it threw a P0420 code. I replaced the oxygen sensors, but the problem persists. Jump to Latest 7. 2. Price range is 100 to 250 each. Reddit, I Bought a Honda Pilot 2011 and faced the P0420/Bad catalytic converter. ‘04 accord getting a p0420 code, the cat was replaced less than 2 years ago, could this have already gone bad? View community ranking In the Top 1% of largest communities on Reddit. Still, it basically means that your car’s catalytic converter isn’t removing enough pollutants Get the Reddit app Scan this QR code to download the app now [2007 Honda Accord EX] Got code P0420 and P0325 but not sure if one is caused by the other, could use some help! you've got a bad knock sensor. A Reddit community for I have a 2006 Honda CR-V that I bought about 6 months ago with 250k, car has about 254 on it now. Misfires etc. then i replaced bank 1 oxygen sensor and cleared the code. and I have a P0420 on my 2015 WRX with 131k miles and here is what I've done so far: A reddit for the new Focus ST, spiritual successor to the Focus SVT. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada How bad is the performance issue? I worked at Honda for 15yrs and never saw a converter come apart and plug up. This time I’m told from my neighborhood mechanic “we can’t figure out what it is - bring it to your Honda dealership because they should understand what is causing this”. Subaru & Honda. Automotive learning is a place for new and seasoned gearheads to come together to share stories View community ranking In the Top 5% of largest communities on Reddit P0420 Honda CRV Advanced Diaganostics "Complete Guide" Honda cr-v code p0420. Hello and thank you for your patience since I will break down everything with this situation, Honda corp got back to me and they gotta communicate with dealer to see how a warranty repair . Your Reddit home for all things related to the Honda CR-V! Curious where that table is? What does CR-V stand for? 2009 HONDA FIT SPORT GE8 - P0420 and P0102 Codes We're Reddit's central hub for vehicle-related discussion, industry news, reviews, projects, DIY guides, advice, stories, and more. And, theres no way for the path to deviate. A a few days ago a P0420 code popped up. 2017 Honda Civic Emission System Problem light ON. Thanks! Share Sort by: Best. Code Get the Reddit app Scan this QR code to download the app now Anyone installed an aftermarket catalytic converter on a 2010 Honda civic? What manufacturer worked (cateran, eastern, dorman, etc) and did you have difficultly with the O2 sensors fitting? Also did it clear the P0420 code? Archived post. 2005 Honda Civic P0420 and P0420 pd codes, quite new Cat, no detectable exhaust leak. I recently replaced the flex pipe, the cat and both o2 sensors and also got the cat re-welded back into place; however, I'm now throwing a P0420 code (catalytic converter is not functioning efficiently). Update on the cr-v code p0420 it was the bank1 sensor 2 downstream oxygen sensor causing the problem. 2012 Honda fit Got P0420 code. The code was for (I believe) the upstream sensor. 15K subscribers in the automotivetraining community. We’re in California by the way. Do you guys have anything thoughts, suggestions, or advice? My car has the dreaded p0420 code (replace catalytic converter). Only change was new thermostat and Seafoam in recent full gas tank - which really helped injector performance and it’s running very well despite the CEL. To me it seems unlikely, and horrifying, that both cats would go in the span of a couple months. 0 has had a P0420 code on and off (comes back after being deleted several times) but when I erased the code and took it for an emissions test (Colorado), it passed with flying colors. I don't know if he was right, but I have emission tests every year and I always pass them. This sub-reddit is dedicated to everything related to BMW vehicles, tuning, racing, and A subreddit for Honda Element enthusiasts! The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and The P0420 code I had to bypass with a low pass filter made with a 4. 45V theshold for narrow band sensors, and across the entire rich / lean spectrum for wide band 2004 Toyota Prius. Was it replaced with an oem or aftermarket unit? You can try and put an o2 sensor spacer on it to pass emissions. 2015 with 175,000 miles 3rd Gen GK My car’s check engine light popped on tonight with the P0420 code. Reddit community for I had that code on my Fit. 2019 honda ridgeline transmission system problem and blind spot info system problem message popped up. The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and Canada from model years 2003 through 2011. " View community ranking In the Top 1% of largest communities on Reddit. How is this possible? I have a street maf and a carb exempt tune. Not to mention its going to sound like crap as the other I finally found out what caused the code p0420 it was the downstream oxygen sensor. Took it to a mechanic and they tested the cat and said needs to be replaced. 195K subscribers in the Honda community. M. so you need to track down the problem, not the symptom. Im pretty sure that's it because there have been sulfur smells coming out of exhaust for a while. Changing the 02 sensors absolutely will NOT fix cat codes. Thanks Scotty. Thanks for posting on r/MechanicAdvice!Please review the rules. Or check it out in the app stores Created by Honda Enthusiast. What makes this tough to diagnose is the shear 8thcivic. I'm not excited about Honda's estimate of $2,000 especially this close to the holidays. Home for Honda & Acura enthusiasts. Before taking your Prelude into an exhaust shop for an (expensive) new catalytic converter, let’s ensure that’s what you need. They’re offering 1800 for new original installed or 1250 for new after market installed. In my car (Renault 2012 V6 Honda Pilot Touring - 166k miles Have had the car for about 5 weeks now. clutch, spark plugs, valve adjustment, water pump, timing chain. Post's about bodywork, accident damage, paint, dent/ding, questions it belongs in r/Autobody The meaning of diagnostic trouble code (DTC) P0420: Catalyst System Efficiency Below Threshold (Bank 1) may sound complex. I put another bottle of cataclean, and ran through almost 300 miles and the CEL . A subreddit for Honda Element enthusiasts! The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and Hey all. P0420 code but passes emissions . Hello! I have a 2005 Honda CR-V with about 192,000 miles, and on my way into work my check engine light came on. My understanding of the code is basically that your exhaust makeup is outside of emission specifications. . Honda’s made some incredible and fantastic vehicles but the CRX still holds a special place in my heart. Today I received check engine code (p0420) saying there was an emissions problem. Business, Economics, and Finance. The check engine light went away after about 200 miles of use. Get the Reddit app Scan this QR code to download the app now. It's currently on a temporary movers permit because I need to get emissions done this month before I can get my tags. I took it to another local mechanic (good reviews on Google), who ran a scan and picked up the same code. I know there are different reasons for the code to pop up that don’t involve replacing one of the Created by Honda Enthusiast. Check Honda TSB 21-010 (Feb. Replaced both O2 sensors and catalytic converter this month. and remember to please post the year/make/model of the vehicle you are working on. Take it into the dealership and have them change it under warranty. Drive cycle for Camrys is 100 miles, so drive for 2 hours any Faulty fuel injectors. Before the dealer repairs it, call American Honda and see if they will cover all or part of the repair. sometime bad o2 can cause a p0420. 2003 Honda CrV LX P0420 code question Just bought a 2003 hondra crv with 120k miles and am getting a little confused on this p0420 code. Took it to a mechanic who said a cat issue would explain the losing power and why it's worse at higher speeds. One possible outcome is that the readiness monitor will complete. Before taking your Fit into an exhaust shop for an (expensive) new catalytic I’m also guessing 4 cylinder. Members Online • Major_Frozen . Photos, videos, how-to guides, "Should I buy?" posts, maintenance, modifications and more! sensor failure has its own codes so P0420 is likely to be the cat, or a related problem that messes with it like running rich, etc. Its a straight path. Or check it out in the app stores TOPICS its a 1998 Honda Accord Lx 4Cyl Archived post. This sub is dedicated to teaching the fundamentals of automotive systems and programs. Pretend the path is a bridge or something. Cleared the code and View community ranking In the Top 1% of largest communities on Reddit. Check for vacuum leaks or other fuel I have a honda pilot that throws p0420's all winter long. Has anyone heard of this? Can a bad EGR throw a P0420? Buy that VCM disabling device ASAP and I would do a ATF refresh with Honda DW-1 or Valvoline Maxlife Full Synthetic Fluid. com is not in any way affiliated with Honda Motor Company VerticalScope Inc. Here’s a good P0420 diagnostic order for the Honda Prelude: 1. CEL On Check engine light came on a couple weeks ago. Why did it take so long to throw this fault code? And if I make it go away, will it come back again soon again or will it remain gone for the next 8 months? 😁 Get the Reddit app Scan this QR code to download the app now. 5t LX P0299 and P0420 codes. I reset it, but expect it to come on again as the code persists with my inexpensive code reader. Hi, I just bought a used 2015 Honda Civic with 206XXX kilometres on it for CAD 8000. E. if you don't have good upstream patterns. Van is just short of 200k, running and driving fine, no shuddering or lack of power. Or check it out in the app stores P0420 on Honda accord 2013 . Honda Honda Fit Cars Now, a few months later, the check engine light is back on and we're getting a Code P0420: replace catalytic converter(s) with new OE catalytic converter(s). I’ve been driving for a few days now and it hasn’t come back on. The vehicle has 3 catalytic converters. How long does the code goes away? It's on "permanent" when I used the ODB scanner. Related The definition language of of OBD2 code P0420/P0421 is "Catalyst System Efficiency Below Threshold" / "Warm Up Catalyst System Efficiency Below Threshold", which unfortunately misguided people (including seasoned repairman) to replace catalyst converter, only to find code returns in between a few months and 2 years. Then there are some (depending where you live) maybe illegal methods to keep the P0420 away. The most common fix for P0420 in the Honda Odyssey is a new catalytic converter, followed by an O2 sensor replacement. Or check it out in the app stores TOPICS The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East A couple days ago I got a check engine light code P0420 bank 1. r/Honda list is a list of recommended texts on areas of linguistic and language research compiled by resident experts here at Reddit. Scanner said “P0420, check for a clogged or damaged catalytic converter”. Honestly I wonder if the 02 sensor is acting View community ranking In the Top 1% of largest communities on Reddit. From looking online it could be the catalytic converter, 02 sensor, or even the fuel rail. Approximately 1. r/MechanicAdvice. Most cars do not like aftermarket cats, and are more prone to be faulty sooner than Got a P0420 code. P0420 (2012 Accord 2. The Evolution Of Language: Study Of Rare Indigenous So i had a P0420 code about a week ago, I took it to a shop a week ago and they said i gotta replace the whole cat converter but obviously i didnt do that. Car reviews, questions answered, and accessories. 5-2yrs ago. Catalyst System Efficiency Below Threshold (Bank 1) So this engine code article applies to Nissan, Toyota, Chevrolet, Ford, Honda, GMC, Subaru, VW, etc. The trouble code is P0420, and the engine light turns on and off irregularly. Engine light and code P0420 on 2015 Fit. I replaced my upstream sensors which were actually pretty old and burnt out so they needed replacing The term P0420 Honda is essentially a generic diagnostic trouble code (DTC) that translates to “Catalyst System Efficiency Below Threshold (Bank 1)”. Took it to the shop to get the codes read. It gets its oil change regularly and it has been running like a champ. 1M subscribers in the Justrolledintotheshop community. Internet Culture (Viral) 2006 Honda Civic P0420 code . I went to autozone and they told me it was a P0420 code and gave me some cataclean. He recently got a check engine light on 2 days ago and I checked it. your o2 sensor could have failed and allowed the engine to run too rich. 7 micro farad capacitor and a 100k Ohm resistor, the code hasn't been back in the last 2k miles and has been code free since. But as I am doing more research it seems like it could be an easy fix. 8thcivic. 4 AWD with a 220,000 miles. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. I parked at work and plugged in my code scanner and received the code of P0420. Cleared the code and added some fuel additive so far light hasn't come back. I’m 2020, I had the catalytic converter stolen off my 2010 Honda Element. Less than a week ago, I replaced all 4 spark plugs, and am worrying if the replacement could be a reason for the check engine light to come up. Front o2 sensor replacement can sometimes help. View community ranking In the Top 5% of largest communities on Reddit. Check for exhaust leaks at the manifold, the sure fix for the P0420 is a OEM cat. Car: 2007 Honda Accord SE 2. If you check the "Pending DTCs" and you see the P0420 there, then it's definitely considering re-issuing the DTC and kicking the light back on. The other possible outcome is that you'll have a P0420 code (or a code for an O2 sensor issue) return. The infamous P0420 help I changed the O2 sensors 2 weeks ago. Check engine light turns on and I get it checked. So I bring it to my Honda dealership and they basically tell me the car is perfectly fine and the light likely means nothing($400 later). 2017 RTL-E MOD's: Extang Encore tonno cover, Honda Chrome Running Boards, Mud Flaps, Chrome Exhaust Tip, I recently purchased a used 2011 Honda CRV EXL, and had the check engine light come on. Honda When you get a P0420, that's the ECU telling you it doesn't think one of the cats is working anymore. The day after, the engine light has now 2006 Honda Pilot EX 216,*** miles Hey guys, I had 2 codes pop up on my 2006 honda pilot right as its time to pass emissions and renew my tabs. Post's about bodywork, accident damage, paint, dent/ding, questions it belongs in r/Autobody We're Reddit's central hub for vehicle-related discussion, industry news, reviews, projects, DIY guides, advice, stories, and more. It bases this off the secondary 02 sensor signal. I'm told this means I need to replace my catalytic convertors. Anything and everything about the Honda Fit/Jazz. ADMIN MOD 2015 Honda civic p0420 . I have a 98 Civic I recently bought just as a car to get around since I share my other car and can't always use it. 98 Honda Civic - P0420 error, thinking of using an O2 sensor extender/spacer . I finally replaced the O2 sensor, and now I'm getting a P0420 engine light code (low catalytic efficiency) after a drive cycle. will appreciate if anyone can help. You have two guards, and theyre counting pedestrians that are making their way from point A to point B. Hello everyone, CEL just popped today, obd2 scanned. Asked a local mechanic and he asked $250 to get the code off and pass the NYC inspection. The one behind the cat is just there to compare the reading with the front one to make sure the cat is lowering the View community ranking In the Top 1% of largest communities on Reddit. 11, 2021): Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (Without Software Update) 2nd Gen This sub-reddit is I recently purchased a used 2011 Honda CRV EXL, and had the check engine light come on. Or check it out in the app stores 2010 Honda CRV LX 4WD - P0420 . There's less power on acceleration, I need to hold my foot in the gas to maintain speed more than usual, and mpgs are down from 30 to 24. Through my insurance, I had a new non-O. The car is a 2008 Honda Civic Type S. Honda Canada released an extended warranty for 10 years/240,000km ish for the fuel injectors / p0420. There are 2 oxygen sensors in your exhaust the upstream (in front of the converter) that directly controls the the engine performance and then the downstream oxygen sensor (behind the converter) that is only there for one purpose and that is to monitor the Thanks for posting on r/MechanicAdvice!Please review the rules. I also have a nissan sentra doing the same thing. even the best aftermarket cannot measure up to a OEM one. The piece was under warranty and Honda replaced it. View community ranking In the Top 1% of largest communities on Reddit. I have a: 2013 Honda Accord LX 4 door, 4 cylinder A few days ago when it got to be below 32 degrees fahrenheit, my engine light came on. If i were you and have no access to a obd2 scanner, i will just unplug battery My late sister's 2010 CRV: Check Engine lit yesterday, code P0420 Catalyst System Efficiency below threshold (Bank 1) After pouring 3L of Lacquer Thinner into half a tank of gas I'm 1000km in and the catalytic converter code P0420 has not returned. But it should apply It's very common to get P0420 after rear o2 sensor replacement. This sub has no official connection to the Discord server, nor does this sub have any official endorsement or official relationship with BMW 2011 Honda Odyssey P0420 and P0430 code keeps coming on and off for the past year and a half, unfortunately I wasn't the one driving for the duration but they claim that mpg goes down a little bit when its on. P0420 Diagnosis: Honda Fit. Catalytic converters are a big metal tube that filters out the bad environmental stuff in your exhaust. If you are here asking about a second opinion (ie "Is the shop trying to fleece me?"), please read through CJM8515's post on the subject. This sub-reddit is dedicated to everything related to BMW vehicles, tuning, racing, and more. Put in simpler terms, it’s the car’s sophisticated way of saying that the catalytic Get the Reddit app Scan this QR code to download the app now. It's not going to be the 02 sensor. I wouldn't worry about anything until the light comes back on. Back when I bought my 2007 LX, the previous owner told me he installed an aftermarket cat after getting a CEL - probably this one. I scanned it and a code P0420 came up with no other codes. The Honda ECU will take that, and determine that your cat is dead. Is p0420 the only code? If so it’s your cat once again. ++ The sub will remain private for at least 48hr from 0000UTC on 12th June 2023. It's a code P0420, I get paid tomorrow. How long can you drive with a bad cat? Info about car: 2008 honda accord 170k miles This thread is archived New comments cannot be posted and votes cannot be cast Hi there So my 2006 Honda Civic has had the check engine light with a P0420 code on for the last six months. So far in my career, i have ONLY seen a catalyst replacement correct the p0420 condition, but maybe someone else on here has seen P0420 2011 Honda CRV 140k My daughter's CRV is throwing this code alone. My wife’s 08 Sentra 2. then around april/may, they go away until about october. I also get the fun “tighten gas cap” alert on my Go to Honda View community ranking In the Top 1% of largest communities on Reddit. com is an independent Honda enthusiast website owned and operated by VerticalScope Inc. The code was "P0420 - Catalyst System Efficiency Below Threshold Bank 1. Members Online • Suspicious-State8158. Think of the P0420 along this line. Pics / Videos / Stories / Advice & More! View community ranking In the Top 5% of largest communities on Reddit. I got code P0420. Contact your local honda dealership. The cat and o2 sensors have less than 40miles on them so I'm completely stumped at what's going on P0420 Diagnosis: Honda Odyssey. My fit had its first a check engine light at 126,600 miles today. Replaced the catalytic converter. OBD Trouble Code Technical Description. big surprise, both have front mounted cats, and will throw a code a couple mins into driving. Anyone have advice on cheapest way to renew my registration? As somebody that has actually cleared this mystery P0420 before, I can explain what helped me when I had my 2006 Honda Accord. Hi, I got the P0420 code on my 2006 Accord V6 (220K miles) cleared and I wanted to share the procedure. They check for intake and exhaust leaks and tested sensors according to paperwork. Chasing P0420. Last month, rhe P0420 code started showing up again but it will come and go. 2016 Honda Accord ex, P0420 trying figure out if my catalytic converter is bad or the O2 sensor is bad. Assumed it was the cat. Pretty common On your car you have 3 cat. Check engine light is on due to P0420 code. P0420 is most likely going to be the sensor closest to the catalytic Honda extending warranty for fuel injector failure. kduxkeulxcbmclnxilqxkwgxiflrrddlefijuzeopuvrscxnubcahjlb