Check Engine Light and P0420 and P0430 Codes. So, your Check Engine light is on, and you've got either a P0420 or P0430 code, on your OBD-II scanner. This "Catalyst system efficiency below threshold" code is triggered when your car's computer (the powertrain or engine control module (PCM or ECM)) detects a catalytic converter issue. 1A ...I have a 2003 Honda Accord showing engine malfunction codes P0420 and. Check Details. P0141 -What Does It Mean? (1995-1997 2.2L Accord And Odyssey) Check Details. Honda Accord 2003: Troubleshooting P0507 & P2279 Codes - Q&A. Check Details. 2003 Honda Civic Hybrid Code p0141 & p1130 - Honda Civic Forum. Check Details. 2006 Honda Accord LX code ...My 2003 Honda Accord has a P2422 code which is the EVAP canister vent valve stuck open. I know where to locate the canister (rear driver's side under the car). I went to two mechanics to get the part# and/or how much it costs and they want to do "diagnostics" first. As far as I understand with EVAP leak type stuff that means running CO2 ...Especially because the P1456 code has been on and off for a really long time, and the P0420 code was not present until just now. Selene: 1999 Honda Accord LX Sedan 2.3 F23A4 202K Flamenco Black Pearl Atreyu: 1989 Honda Prelude Si Coupe 2.0 B20A5 4WS 112k Granada Black Pearl Artax: 1986 Chevrolet Cavalier Z24 2.8 60° V6 …P0443 indicates a problem with the wiring to/from the purge valve or that the purge valve solenoid has a short/open circuit. It typically won't affect the way that your Accord runs. You may smell gas. Most commonly caused by a bad purge valve solenoid. Checking the gas cap may just save a lot of time.This page is meant to help you troubleshoot the Honda Accord 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 …Honda accord 2003 2 doorHonda accord 2003 p0420 seems ex common research p0141 very ho2s Used 2003 honda accord ex-l coupe 2d prices2003 honda accord ex 2.4l 4 in nc. 2003 Honda Accord EX V-6 - D&S PreOwnedHow to Fix EGR Low Flow code P0401 on Honda Accord | How To Clean Clogged EGR intake Passage Way YourselfHonda Accord SE - Year: 2002Miles: 280KProblem: Engi...The most common fix for p0420 in the honda accord is a new catalytic converter, followed by an o2 sensor replacement. 2007 honda accord code p0420. P0420 Honda Accord 2003. The car has been sitting for a month after changing bad injectors and fuel pump.2007 Honda Accord and P0420 CEL. My occasionally driven 2007 accord with AT and ~154K miles - yesterday filled up the gas tank and after an hour or so drive, randomly started to throw up CEL. 28-30 or mpg are normal, through manual calculation and no performance issues, clean air filter and fresh fluids. Scanned it today and it was P0420 code ...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.Feb 14, 2018 · 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...In this article, we will delve into the world of automotive diagnostics and focus on the 2014 Honda Accord's P0420 code. This code refers to a potential issue with the vehicle's catalytic converter efficiency. Understanding and diagnosing this problem is crucial in ensuring optimal performance and emissions control. Join us as we explore the ...The Honda Accord EXL V6 is a popular choice among car enthusiasts who crave power, performance, and style. If you’re in the market for a sleek and reliable vehicle, then look no fu...This page is meant to help you troubleshoot the Honda Pilot P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. TableCould have been a lot of things, bad fuel, loose or corroded connection at the knock sensor. Could have been a rodent chewed the wires. You should check the wiring to the knock sensor. What is going on is your O2 sensors are old and about shot and you need to replace them (P0420) and ditto your knock sensor (P0325).Aug 25, 2020 · JOIN GASDIESEL GARAGE AS WE DIAGNOSE AND REPAIR THE MOST COMMON CHECK ENGINE LIGHT TROUBLE CODE P0420 Catalyst Efficiency Below Threshold Bank 1 SENSOR 2 ON...Dreaded P0300 code & P0420. Jump to Latest Follow ... Drive Accord Honda Forums. 2.1M posts ... Since 2003 Drive Accord forum, a community where Honda Accord owners can discuss reviews, service, parts, and share mods. Show Less . Full Forum Listing. Explore Our Forums ...Buy this o2 sensor - https://amzn.to/2DqtfbEPretty simple step-by-step walk through on how to change the Bank 1 Sensor 1 on any 2003-2007 Honda Accord V6. T...La Quiaca 14 Day Extended Forecast. Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 46 °F. Drizzle.So last February I had the Check Engine light come on my 2007 2.4 4 cylinder Accord. This code was P0420 and after reading online I thought I would replace the cat and the o2 sensor that plugs into the cat. The car had 65k on it at that point. I reset the code and drove the car for about 10,000-15,000 miles no problems.Jun 19, 2023 · Definition meaning and fixes for a Honda P0420: Catalyst System Efficiency Below Threshold Bank 1If the OBD-II code reader displays a P0420 or P0430 trouble code, bring your vehicle to an auto repair shop for a thorough checkup and repair job.. How the Catalytic Converter Works. The catalytic converter is an exhaust-mounted emissions control device. When working properly, it transforms pollutants created by the engine into harmless water vapor and carbon dioxide.2003 2004 2005 2006 2007 Honda accord 2.4l o2 sensor locationBelow are the prominent reasons for the P0420 code. Catalytic Converter Failure: Catalytic converters remove pollutants from the Accord’s exhaust and might become jammed eventually. Exhaust System Leakage: Any significant leak from the exhaust system will result in PO420. Engine Temperature Detector: O 2 detectors lose range when the car ...Oct 31, 2018 · Related: P0135 Honda Accord. Honda Accord P0141 Symptoms. Typically, the only symptom of P0141 is going to be the service engine soon light. It should not be considered a breakdown risk. But, like anything that causes the service engine soon light to come on it is a good idea to have it fixed as soon as possible. P0141 Causes: Honda …JOIN GASDIESEL GARAGE AS WE DIAGNOSE AND REPAIR THE MOST COMMON CHECK ENGINE LIGHT TROUBLE CODE P0420 Catalyst Efficiency Below Threshold Bank 1 SENSOR 2 ON...Pueden haber diversas causas por las cuales se registra un código DTC P0420 Honda en un auto. Algunas causas pueden incluir: Convertidor catalítico de tres vías defectuoso (TWC) El sensor de oxígeno calentado secundario defectuoso (Sensor HO2S secundario (Sensor 2)) El arnés del Sensor de oxígeno calentado secundario 2 está abierto o en ...Dec 17, 2017 · P0420 for 2004 EXL 4cyl SULEV auto. This Accord has 190K miles. The code P0420 came up about 3 weeks ago. Bought Ancel's AD410 scanner on Amazon to read it. I've have tried the fuel cleaner and use of different gas station (costco). Somehow, the engine light disappeared for the couple of days, but then reappeared again.Below are the prominent reasons for the P0420 code. Catalytic Converter Failure: Catalytic converters remove pollutants from the Accord’s exhaust and might become jammed eventually. Exhaust System Leakage: Any significant leak from the exhaust system will result in PO420. Engine Temperature Detector: O 2 detectors lose range when the car ...Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...104 posts · Joined 2013. #1 · Nov 27, 2015. i have a 2007 honda accord lx 4cyl sedan. last august while driving from new York city to Pennsylvania {i-80} i got a check engine code of p0420. i cleared the code when i got back home and the code never popped up . i thought it was a fluke and forgot about it.Go to Honda r/Honda • by ... P0420 (2012 Accord 2.4) I bought a used 2012 Accord 2.4 last February. The old owner said that the cat con on it was missing (since it was in California), and because of that the check engine light could come on at times. The state where I live waives emissions tests, so, I decided it wasn't a big deal.After months of normal driving with no problems, my 2003 Honda Civic EX check engine light came on during a long trip. Got it scanned and it's P0420: Catalyst efficiency below threshold bank 1. They said it could be a bad catalytic converter or oxygen sensor. I borrowed a scanner and tried to measure the oxygen sensor readings over time.It would be a good idea to start by looking for a vacuum leak and move forward from there. 1. Inspect for vacuum leaks: A common cause of the P0507 code is a vacuum leak within the engine. Check all vacuum hoses and connections for any signs of damage or loose fittings. Replace or repair any components if necessary.P0420 is a symptom not a code that says replace this and this. You need to troubleshoot the cause of the symptoms. Sent from my Pixel 5 using Tapatalk . ... 2003 Honda Accord V6 EX-L with Navigation 172,XXX miles. Reactions: BenzAccord, KW2004Accord and accord04ex. Save Share. Like. A.For MORE great Auto Repair Videos, visit us at www.OnlineAutoRepairVideos.com video on diagnosing and explaining a p0420, catalyst efficiency below threshold...P0420 Code and Fuel Trim. My Accord is the 2006 PZEV version with 92,000 miles. A few days ago I got the P0420 Check Engine Light which stands for Catalyst System Efficiency Below Threshold (Bank 1). Plugged in an OBDII tool and found that my Short Term Fuel Trim is at around 20% when idling and drops to 0 when I...Apr 6, 2005 · 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 ...To diagnose and troubleshoot code P0420 in a Honda CRV, follow these steps: 1. Check for other fault codes: Before focusing solely on the catalytic converter, ensure there are no additional fault codes related to the oxygen sensors, fuel system, or engine misfire. See also Upcoming Maintenance: B17 Honda Accord Due Soon. 2.2006 honda pilot code p0420Honda accord p0420 p0430 codes v6 cat 2000 honda civic code p0420Honda p0420 accord 2003 intermittently converter. Check Details. 2006 honda accord code po420. P0420 honda accord 2013P0420 - catalytic converter system, bank 1 -efficiency below threshold What causes bad gas in my 2003 honda accord ex 5 sp. sp.Honda ...I'm assuming that #3 is unrelated to the P0420 and due to engine mount damage caused by the VCM issue. ... 2010 Honda Accord - LX - Polished Metal Metallic - 92k miles - Bought used in September 2012 with 11k miles Wrecked. ... Since 2003 Drive Accord forum, a community where Honda Accord owners can discuss reviews, …Mar 17, 2020 · Attached is a picture describing the OEM Honda parts for reference, the replacement parts, and a graph of the O2 voltage for bank 1, sensor 2. The Honda part number for the catalytic converter is 18190-R40-A00. The OEM aftermarket is the Walker 16590. In addition to this, I would also need to purchase the Walker 31556 Pipe Flange …Oct 28, 2023 · Accord honda 2003 ex sedan 4d used kbb book blueSell used 2003 honda accord ex sedan 4-door 2.4l in rochester, new york Accord honda 2003 engine ex cylinder liter dohc sedan vtec valve gtcarlot2003 door 4l accord honda sedan cars 2040 ex.Honda p0420 1998 code accord graphe random ex. Honda p0420 q&a: causes, symptoms & solutionsInjector accord fuel honda 1998 buyautoparts Honda accordFit 1998-2002 honda accord rear complete struts springs assembly w. Honda accord 2003 ho2s p0420 seems ex common research connector p0141 sensor downline o2 wire secondary very justanswer1998 honda ...what are the symptoms of the p0420 code? The first and most typical P0420 code symptom is the check engine light coming on. Second, you might not be able to go faster than 30 to 40 mph since your engine won’t run as smoothly as it typically does. The engine’s power output has decreased, which is the cause of this. How can you fix the p0420 ...I have a 2009 Honda accord with codes p0420 and 83-1, ... 2003 Honda Accord EX: research, this seems to be very common for Honda. My 2003 Honda Accord EX 5 sp. came up with codes P0420 & P0141. From research, this seems to be very common for Honda, unfortunately. But from what I read, there are certain causes for this ...MagnaFlow OEM Grade Federal EPA Compliant Universal Catalytic Converter 2in 51354. $20299. Location: Federal. Part # 51354. SKU # 546200. Year Warranty. Checkif this fits your 2005 Honda Accord. Select store for pickup availability. StandardDelivery by May 25.2010 Honda Accord - LX - Polished Metal Metallic - 92k miles - Bought used in September 2012 with 11k miles ... just that it's weak. I've had the P0420 code on my Toyota Camry for a few years now, in NJ, where there are biennial emissions inspections. Each time I've cleared the code, drove a few hundred miles for the ECU to gather data, and it ...Shop wholesale-priced OEM Honda Accord Catalytic Converters at HondaPartsNow.com. All fit 1980-2021 Honda Accord and more. ... 2003-2004 Honda Accord | 2 Door EX (V6), 2 Door LX (V6), 4 Door EX (V6), 4 Door LX (V6) | KA 5AT, KA 6MT, KL 5AT, KL 6MT; Less Info. View related parts.Honda p0420 sensor code accord catalytic converter 1998 ex connection rear graphe randomI have a 2003 honda accord showing engine malfunction codes p0420 and P0420 o2. Check Details P0420, Accord 2005, 3.0L, 215k+ Miles - Honda Accord Forum - HondaAug 8, 2021 · 3904 posts · Joined 2014. #9 · Aug 10, 2021. Well, there's your problem. You bought a PCD. This does not contain the Pre-Cat, which is why you are getting the P0420, the exhaust isn't getting treated before the getting to the secondary O2. 2010 Accord LX Sedan 5AT (K24Z2) (~230K mi) Turbocharged (GT3071R) 8psi.On 2/22/22 I had my catalytic converter stolen off my 2004 Honda accord LX, and I replaced it about a week later, and everything was fine. In September I smogged the car and it passed, however now in November, on three different occasions my check engine light has come on with the P0420 code. The first time I reset it, it came back on next time ...Catalyst System Efficiency Below Threshold (Bank 1) is the meaning of the P0420 code. This code indicates that Catalyst System Efficiency (Bank 2) is below the threshold (P0430). The number one cylinder is located on the bank 1 side of the engine. In Bank 2, you will find the opposite side of the engine. P0420 and P0430 both showed up and are ...Engine-Codes - Honda - P0344 Honda. P0344 Honda Code - Camshaft Position Sensor 'A' Circuit Intermittent Interruption. - Code Popularity: 57,825 Views. - Repair Importance Level: 3/3. - Repair Difficulty Level: 2/3. Table of contents. Created and updated by William Orellana on Aug 17, 2023. Possible Causes.May 25, 2018 · However, I have recently started to get the P0420 code. Replaced original catalytic converter with Magnaflow one, and continue to have the code - the code still came up after the catalytic converter was replaced, took in and got it replaced a few days later with another one. However, the P0420 code continues to persist, as well as poor gas …1998 honda accord check engine code p0420P0420 honda accord 2007 - means and how to fix 2003-2007 honda accord code p0420 what you need to know?Honda p0420 crv code 2002 system cheat. 2006 accord se codes p0420 & p01712002 honda crv p0420 code how to use a defouler to cheat the system How to fix code p0420 or lack of acceleration on honda cr ...Honda accord 2003 ho2s p0420 seems ex common research connector p0141 sensor downline o2 wire secondary very justanswerHonda p0420 accord 1998 code ex P0420 converter o2 catalytic sensorHonda 2010 accord p0420 bank efficiency catalyst below threshold. Random graphe: how i fixed the p0420 code on my 1998 honda accord ex⭐ 2010 honda accord Have ...2014 EXL (K24) - Oil consumption and p0420 solved! In the past I had posted about some issues that I was having with oil consumption in my 2014 accord EXL K24 causing a clogged Catalytic converter and the p0420 light. My accord gets driven a LOT. I currently have 218k miles on my Accord and have put 100k miles on this car in the past 18 months ...Code p0430 honda accord 2010 v6 means trying find sensor qa P0420 honda accord 2003 2007 honda accord p0497. We have a 2003 Honda Accord 2.4 CA It has 4 codes p0103 p0113 p0108 p0507 Codes will not clear. P0420 - catalytic converter system, bank 1 -efficiency below threshold (honda) - troublecodes.net Trying to find out what code p0430 ...Catalyst System Efficiency Below Threshold (Bank 1) is the meaning of the P0420 code. This code indicates that Catalyst System Efficiency (Bank 2) is below the threshold (P0430). The number one cylinder is located on the bank 1 side of the engine. In Bank 2, you will find the opposite side of the engine. P0420 and P0430 both showed up and are ...Especially because the P1456 code has been on and off for a really long time, and the P0420 code was not present until just now. Selene: 1999 Honda Accord LX Sedan 2.3 F23A4 202K Flamenco Black Pearl Atreyu: 1989 Honda Prelude Si Coupe 2.0 B20A5 4WS 112k Granada Black Pearl Artax: 1986 Chevrolet Cavalier Z24 2.8 60° V6 126k White Silvio: 1998 ...Some possible causes for code P0420 in a Honda Accord include: 1. Faulty oxygen sensor: A malfunctioning oxygen sensor can provide inaccurate readings, leading to the P0420 code. 2. Catalytic converter issues: A failing or damaged catalytic converter may not be able to efficiently reduce emissions, triggering the code. 3.I'm assuming that #3 is unrelated to the P0420 and due to engine mount damage caused by the VCM issue. ... 2010 Honda Accord - LX - Polished Metal Metallic - 92k miles - Bought used in September 2012 with 11k miles Wrecked. ... Since 2003 Drive Accord forum, a community where Honda Accord owners can discuss reviews, …Feb 11, 2011 · 5,852 Posts. #59 · Aug 31, 2013. BTW the Rear O2 sensor is what the computer uses to determine if the Cat is below efficiency. If the computer sees the sensor after the CAT go from rich (over 600mV) to lean (under 300mV) it will set the P0420 code or if it sees no data (or set a P0430 code for bank 2 on V engine).Dec 12, 2013 · So last February I had the Check Engine light come on my 2007 2.4 4 cylinder Accord. This code was P0420 and after reading online I thought I would replace the cat and the o2 sensor that plugs into the cat. The car had 65k on it at that point. I reset the code and drove the car for about 10,000-15,000 miles no problems.What causes bad gas in my 2003 honda accord ex 5 sp. sp.Purchase used 2004 honda accord ex coupe 2-door 2.4l in marietta P0420 honda code fixI have a 2003 honda accord showing engine malfunction codes p0420 and. Check Details. Accord p0420 honda.. Check Details. Check Details. Honda Accord 2007: Q&A on P0420 Code & Engine Troubleshooting. Check ...Some possible causes for code P0420 in a Honda Accord include: 1. Faulty oxygen sensor: A malfunctioning oxygen sensor can provide inaccurate readings, leading to the P0420 code. 2. Catalytic converter issues: A failing or damaged catalytic converter may not be able to efficiently reduce emissions, triggering the code. 3.This page is meant to help you troubleshoot the Honda Odyssey P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. TableHonda p0420 accord 2003 intermittently converter I have a 2003 honda accord showing engine malfunction codes p0420 and P0420 0l 1997 fails catalytic. ... Code p0420 honda accord cel install until days had been v6performance nowP0420 catalyst system efficiency below threshold (bank 1) Honda tps p0122 test accord 2l unplugPart 2 -how to test ...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...Feb 11, 2011 · 5,852 Posts. #59 · Aug 31, 2013. BTW the Rear O2 sensor is what the computer uses to determine if the Cat is below efficiency. If the computer sees the sensor after the CAT go from rich (over 600mV) to lean (under 300mV) it will set the P0420 code or if it sees no data (or set a P0430 code for bank 2 on V engine).Subscribed. 759. 90K views 3 years ago. JOIN GASDIESEL GARAGE AS WE DIAGNOSE AND REPAIR THE MOST COMMON CHECK ENGINE LIGHT TROUBLE CODE P0420 Catalyst Efficiency Below Threshold Bank 1 SENSOR 2...Car: 2007 Honda Accord SE 2.4 Inline-4 5-speed manual I got check engine light. I used the OBD-II tool to diagnose. I got code P0420. This could be mean: Gas cap not tightened properly Bad Oxygen Sensor Bad Catalytic Converter I checked the gas cap. It was tight and good. I looked at the live graph of the O2 Sensor Bank 2 Sensor 1 Voltage to ...So, my wife's 2003 Honda Accord EX with 203K miles just threw a CEL code P0420 (Catalyst System Efficiency Below Threshold (Bank 1). So, how screwed…The dreaded P0420... but a different take? ... Previous cars: 2003 EXL V6 Accord Coupe 1995 Accord EX Sedan 1985 Mercedes 300 Turbodiesel 1989 Volvo S90 Turbo. Save Share. ... Drive Accord forum, a community where Honda Accord owners can discuss reviews, service, parts, and share mods. Show Less .On 2/22/22 I had my catalytic converter stolen off my 2004 Honda accord LX, and I replaced it about a week later, and everything was fine. In September I smogged the car and it passed, however now in November, on three different occasions my check engine light has come on with the P0420 code. The first time I reset it, it came back on next time ...In general the P0420/P430 code is really a bad catalytic converter. The issue is what cause the Catalytic Converter to go bad. You need to solve that problem before replacing a Catalytic Converter. That requires troubleshooting the current issue carefully. It may be as simple as a bad sparkplug or a bad fuel injector.There is a known problem with this code for a Honda Accord . The TSB for this is TSB 12-052 Engine control Mil on / DTC P420 set. What this TSB is about is a probable cause that the ECM software may misinterpret sensor input as a deteriated catalytic convertor. Most cases are ECM software. P0420: Dealer recommended replacing "Converter Bank 1 ...360 posts · Joined 2012. #1 · Sep 22, 2019. Jan. 10/2018: Check engine light = P0420. The shop assessed it to be catalytic converter, replaced with new direct fit cat.converter. O2 sensors deemed fine by shop. Sept. 22/2019: Check engine light comes on today. I used a bluetooth device (Veepeak OBD 2) and found P0420.Step 5 - Remove valve. Now that the canister is separated from the car, set it vertically on top of a table and prepare to remove the valve. The valve is located atop of the and is attached to the main cylinder by a small bracket. By now the bracket is most likely corroded, so be careful while unscrewing it.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.Jul 25, 2019 · P0420 has been the only consistent code whenever the CEL turns on and it seems like P2649 is more intermittent, though it's been consistent lately. I can't find much information about this code online anywhere, other than it seems to be related to the electrical actuator of the variable valve timing, but I don't want to spread any ...p420 is typically a bad cat converter. Replacing the o2 in that event would be pointless. You need to inspect the cat converter internally to determine if its damaged or not. Then you'll know if it's the downstream sensor or not or a ruined cat converter.P0420 - Catalyst System Efficiency Below Threshold (Bank 1) Indicates Bank 1 catalyst system efficiency is below the acceptable threshold. ... Since 2003 Drive Accord forum, a community where Honda Accord owners can discuss reviews, service, parts, and share mods. Show Less . Full Forum Listing. Explore Our Forums. The 8th ...Had that 2009 Honda Accord with the P0420 code, you told me to replace the cat. I did and drove the car and the - Answered by a verified Mechanic for Honda ... 2003 Honda Accord: check engine light..neutral..oil change..stall. 2003 Honda Accord - vtec, check engine light kept coming on with P1009 code - stalled a few times when in neutral ...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 ...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 P0420. By following these preventive measures and adopting good The dreaded P0420... but a different take? ... Pre P0420 is a catalyst below efficiency code. DO NOT clear it. You are in the 8/80 catalyst warranty provided the car was first put into service later than January or February of 2003. Bring it to a Honda dealer provided you're within the time limits, they should replace the cat for free as long as the car is in proper fuel control. This page is meant to help you troubleshoot th P0420 is a catalyst below efficiency code. DO NOT clear it. You are in the 8/80 catalyst warranty provided the car was first put into service later than January or February of 2003. Bring it to a Honda dealer provided you're within the time limits, they should replace the cat for free as long as the car is in proper fuel control. Codes P0420 and P0430! HELP! Sooo I'm hoping ...
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