Infiniti p0420 - I recently got two codes on my infiniti. P0420 and P0430. I did not try to reset it. I have a 2012 QX56, All I did - Answered by a verified Infiniti Mechanic

 
Oct 29, 2021 · That’s the way it’s supposed to be. When the downstream sensor begins to switch at the same rate as the upstream sensor, the P0420/P0430 codes are stored by the PCM to flag the failure of the catalyst to store oxygen. P0430 vs. P0420. The P0430 code’s mirror image is P0420, which applies to the converter on bank 1. . La riviera nayarit old norcross

Research on MERS and the common cold helped Jason McLellan identify the COVID-19 spike protein. Trusted Health Information from the National Institutes of Health Jason S. McLellan,...#p0420 #p0430 #catalyticconvertercodes #badcat #autel #motoragetrainingThe “Catalytic Converter Efficiency” codes, P0420 and P0430, are among the top 10 DTCs...In this video, you'll learn the causes and solutions of the P0420 code. The causes of the P0420 code are a bad catalytic converter, an ECM update, an exhaust...If DTC P0420 is stored, replace Bank 1 exhaust manifold and three way catalyst, and A/F sensor. If DTC P0430 is stored, replace Bank 2 exhaust manifold and three way catalyst, and A/F sensor. PORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. MIL “ON” with DTC P0420 and/or P0430. A. 1. 2. IMSymptoms of a P0420 code in Ford Focus. When a Ford Focus experiences the P0420 code, several symptoms may occur. These can include: Illuminated check engine light: The most common symptom is the illumination of the check engine light on the dashboard. Decreased fuel efficiency: Since the catalytic converter is not operating at its …All Obituaries. Candyce V. Thompson, age 64, of Sioux Rapids, Iowa died April 21, 2024 at St. Luke’s Medical Center in Sioux City, Iowa. Funeral services will take place Saturday, …Diagnose p0420: follow this guide! The bad news is that OEM Catalytic converters can cost around $500 – 2000 and that is the most common source of this code according to my case study formed from data of 100+ mechanics fixing this problem. If the CAT needs to be replaced, you might also look into why it went bad.How to diagnose code P0420 on a Infiniti QX60. Typically, you'll find out about P0420 because your malfunction indicator lamp or "check engine light" turned on & you or a mechanic diagnosed the problem with an OBD II code scanner like this one from Bluedriver. You may experience a very slight reduction in engine power from reduced exhaust flow ...Oct 26, 2015 · James. 2004 Armada SE Smoke 4x4, 2 Degree Advanced Timing, Air-Box Mod, K&N Drop In Filter, Active Tuning Grounding Kit, 6000K HID's, LED Interior and Exterior illumination, Chrome OEM Grille, Front Windows Tinted To Mach Back, V8 Emblems, LE Emblem, Big Tow Package, Prodigy Brake Controller, ScanGauge II, Microfilter, Qx56 Chrome Wheels ... I’ve cured many a car with P0420 and P0430 with a tune up. Sometimes it has been spark plug coils which gets a little more expensive, but new spark plugs is the best place to start. The list of things that can cause P0420 to become active is everything from a dirty MAF sensor to an exhaust leak and everything in between.The Galaxy S8 isn’t just a gorgeous Samsung phone — it’s the best-looking phone ever built. Most of that is because of the curved display, which covers over 80% of the phone’s face...Possible causes of OBD code P0421 Infiniti. A code P0421 Infiniti may mean that one or more of the following has happened: The catalytic converter is no longer functioning properly An oxygen sensor is not reading (functioning) properly A sparkplug is fouled up.What does this mean? Tech Notes. As the code description implies, the P0420 code means that the vehicle's Engine Control Module (ECM) has detected that the Three-way Catalyst Converter is not working properly (it is not as efficient as the factory expects).Analysts have been eager to weigh in on the Technology sector with new ratings on Dun & Bradstreet Holdings (DNB – Research Report), Infin... Analysts have been eager to weigh...Dreaded P0420 and P0430 - JBA and the Cajun Fix. Jump to Latest Follow ... Nissan Armada & Infiniti QX56 Forums. 292.1K posts 40.1K membersP0420 is a diagnostic trouble code (DTC) for "Catalyst System Efficiency Below Threshold (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic ...Code P0430 means that the downstream oxygen sensor from the catalytic converter on bank 2 detects the cat isn’t operating to efficiency standards, based on factory specifications. The P0430 trouble code is considered generic, meaning it occurs on vehicles of any type and model. The P0430 shows a problem with the emissions system.Try this first! This video shows a common cause for trouble codes p0014 and p0024 Variable Valve Timing Solenoid for 2009 - 2014 Infiniti FX35 2nd gen, FX37,...The ‘Check Engine’ light is activated when the powertrain control module (PCM) detects inconsistencies in the emission levels. If the post-converter oxygen levels are unusually high, it suggests the catalytic converter isn’t functioning correctly, triggering the P0420 code and lighting up the ‘Check Engine’ indicator. 3.How To Fix OBD Code P0420 On A Infiniti QX60. OBD Code P0420 is an extremely common indicator of an issue with the operating efficiency of your Infiniti …The catalytic converter, as you might know, is a government-mandated device in the Infiniti QX50's engine that converts toxic gases & pollutants into less-toxic chemicals by means of extreme heat & multiple stages of chemical processing.. If the catalytic converter isn't working like it should, your engine will let off more pollution than is legal – …That's why you have to keep your foot on the gas pedal a little. Your engine is starved for air. Tightening up the throttle cable until it idles is not a fix. It only masks the problem. Now for the fix: A new IACV, and a new or rebuilt ECM. The IACV is around $400, and a new ECM from the dealer is over $1000.00.Customer Concern: Infiniti Malfunction Indicator Light (MIL) is on. Exhaust Valve Timing (EVT) control codes P0014, P0024. Cleared the codes and they return...Описание ошибки P0420: Двигатель запущен, напряжение аккумуляторной батареи не менее 11,5 В, все электрические компоненты отключены, соединения с массой между двигателем и шасси надежно соединены, температура ... #p0420 #p0430 #catalyticconvertercodes #badcat #autel #motoragetrainingThe “Catalytic Converter Efficiency” codes, P0420 and P0430, are among the top 10 DTCs... As for the P0420, That is a Bank 1 Catt Converter code. You get this code when the Rear 02 Sensor starts to read like the Front 02 sensor. The Front 02 Sensor reads exhaust gases right out of the engine before the catt converter, where the rear 02 reads after the Catt Converter. So it's suppose to read the exhaust gases after they have been ...What is the Cost to Diagnose the Code P0420 2003 Infiniti G35? Labor: 1.0. To diagnose the P0420 2003 Infiniti G35 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type.What Does The P0420 Code Mean? The P0420 code indicates that the Engine Control Module (ECM) has identified a decline in the efficiency of the catalytic converter on Bank 1. This could be attributed to a malfunctioning catalyst or potentially be a false alarm triggered by a defective O2 sensor.Aug 7, 2015 · Burned a coil cylinder 1, replaced it. Burned the same coil and replaced again. The third time i burned coils 1,3 and 5. All the passenger side coils. Started doing some research on this and came to figure out there is a TSB (Service Bulletin) from Infiniti that addresses this problem and it does have to do with three grounding positions. Unlock your vehicle's secrets with our comprehensive guide on the P0420 code. Get expert insights on understanding, diagnosing, and resolving this common issue. Don't let a P0420 slow you down. Dive in to keep your journey smooth! Infiniti G35 P0420 P0430. Hello mechanics, yesterday I was driving my month-old 196k mile 2005 G35 down the freeway when my Money Light came on. I parked at the nearest sketch gas station and pulled the pending codes using my scanner and got P0420 and P0430, and checked the stored codes to find that only P0420 came up. 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...Beyonce recently announced her latest tour, which includes a unique spin – small business grants. Read about how Beyonce plans to support entrepreneurs this year. World tours provi...If you’re a car owner, there’s a good chance that at some point you’ve encountered the dreaded check engine light. Code P0420 is a generic diagnostic trouble code that indicates an...I’ve cured many a car with P0420 and P0430 with a tune up. Sometimes it has been spark plug coils which gets a little more expensive, but new spark plugs is the best place to start. The list of things that can cause P0420 to become active is everything from a dirty MAF sensor to an exhaust leak and everything in between.What does this mean? Code Tech Notes. As the code description implies, the P0420 code means that the vehicle's Engine Control Module (ECM) has detected that the Three-way Catalyst Converter is not working properly (it is not as efficient as the factory expects). 2. Sensor de oxígeno defectuoso. Otra razón por la que puedes obtener un código P0420 es por un sensor de oxígeno defectuoso. Esto sucede con menos frecuencia, pero a veces, los sensores de O2 pueden fallar y causar todo tipo de problemas. Eso es incluso si continúan funcionando y no recibes errores de ellos. This could be a number of things. P0430 (or P0420) normally indicate a Cat that is not working as efficiently as it should. However, it could be an O2 sensor, MAF, vacuum leak. Since it seemed to happen shortly after you changed the air filter, check to see if the MAF got disconnected. 2009 FX50 with Tech package. Omgmympg Discussion starter.I recently got two codes on my infiniti. P0420 and P0430. I did not try to reset it. I have a 2012 QX56, All I did - Answered by a verified Infiniti MechanicIn this video, you'll learn the causes and solutions of the P0420 code. The causes of the P0420 code are a bad catalytic converter, an ECM update, an exhaust...I have a 2002 Infiniti Q45 with 120,000 miles on it. The check engine light is on and the codes for it are: p0430 and p0420 Mechanic says the car has 4 catalytic converters and quoted replacing all 4 … read moreFailed catalytic converter: A failed catalytic converter is the most common cause of a P0420 code. While some catalytic converters fail from age or high milage, the majority of failures are a byproduct from an underlying issue. The most common issue being an excessive rich condition caused by a misfire or fuel trim problem.Mar 21, 2017 ... ... (P0420 AND P0430.) Since it threw codes for both banks at the same time is it possible that it is not the cats but something upstream of that ...The P0420 engine code is a trouble code that signals a malfunction with your car’s catalytic converter. Its presence simply tells you that the catalytic converter efficiency is deteriorated, making it difficult to convert the toxic exhaust gases from your car into less harmful emissions. An assessment of the inner workings of the catalytic converter …That's why you have to keep your foot on the gas pedal a little. Your engine is starved for air. Tightening up the throttle cable until it idles is not a fix. It only masks the problem. Now for the fix: A new IACV, and a new or rebuilt ECM. The IACV is around $400, and a new ECM from the dealer is over $1000.00.1. Check for other trouble codes: Before focusing solely on the P0420 code, it’s important to check for any additional trouble codes that may provide more insight into the root cause of the issue. 2. Inspect the catalytic converter: Visually inspect the catalytic converter for any signs of physical damage, clogs, or excessive rust. If any issues are …And it's only two moves. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and its partners. I agree to Money's Terms of Use and Privacy Notice and con...2. Sensor de oxígeno defectuoso. Otra razón por la que puedes obtener un código P0420 es por un sensor de oxígeno defectuoso. Esto sucede con menos frecuencia, pero a veces, los sensores de O2 pueden fallar y causar todo tipo de problemas. Eso es incluso si continúan funcionando y no recibes errores de ellos. P0420. So I’m getting the code P0420 and this is coming maybe two weeks after a new exhaust. The code reads catalyst bank system which usually means that something is wrong with the cats, but I also replaced my cats to brand new high flows a few months back. Anyone have experience with this code after HFC. 2. Disney-Pixar fans rejoice. China Eastern is hoping its new livery will go to "infinity and beyond." Or at least, Buzz Lightyear's famous catchphrase will come to mind when passenge...2012 infiniti qx56, getting codes p0174 p0420 p0430. Check engine light, runs rough, rough idle, loss of power, limp mode? ...A quick overview of the two most common problems with a Nissan that has a P0456 OBDII engine error code. “Small Leak Detected in the EVAP System.” Written G...Here's how to bypass or trick the O2 sensor into thinking your catalytic converter is working when you have the P0420/P0430 check engine light code. May or m...There are only two things that clean carbon off. Acetone, or steam. In the commercial injector cleaners, one of the primary ingredients is acetone. But a $170. injector clean, at the shop, can be accomplished by adding 3oz of acetone-per 10 gallons of gas, plus the lucas injector cleaner/upper cylinder lubricant mix.Service Repair. The real cause of P0420/P0430 DTCs. Dec. 10, 2021. The 'Catalytic Converter Efficiency' codes might imply a failed converter, but odds are the ultimate fault lies somewhere else. Pete Meier. Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. View Image Gallery.Beyonce recently announced her latest tour, which includes a unique spin – small business grants. Read about how Beyonce plans to support entrepreneurs this year. World tours provi...In today’s fast-paced and digital world, customer service has become more important than ever. Businesses are constantly striving to deliver exceptional customer experiences to gai...How to diagnose code P0420 on a Infiniti QX60. Typically, you'll find out about P0420 because your malfunction indicator lamp or "check engine light" turned on & you or a mechanic diagnosed the problem with an OBD II code scanner like this one from Bluedriver. You may experience a very slight reduction in engine power from reduced exhaust flow ...CDs can occasionally become stuck inside the stereo in Chrysler Sebrings when they refuse to reject. It's a common problem among all players. It is easily remedied without damaging...Aug 4, 2022 · How to diagnose code P0420 on a Infiniti Q50. Typically, you'll find out about P0420 because your malfunction indicator lamp or "check engine light" turned on & you or a mechanic diagnosed the problem with an OBD II code scanner like this one from Bluedriver. You may experience a very slight reduction in engine power from reduced exhaust flow ... Nov 16, 2022 · 2014 infiniti Q60. I'm getting p0420.. where is bank 1 located and when I read the voltage on bank 1 sensor 1 reading - Answered by a verified Infiniti Mechanic We use cookies to give you the best possible experience on our website. Service Repair. The real cause of P0420/P0430 DTCs. Dec. 10, 2021. The 'Catalytic Converter Efficiency' codes might imply a failed converter, but odds are the ultimate fault lies somewhere else. Pete Meier. Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. View Image Gallery.The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common causes of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes".Re: 2015 qx80 p0430 and p0420 pending. Post by VStar650CL » Fri Oct 28, 2022 5:21 am. When they're by themselves, those codes always mean dying cats. When they're pending it means they didn't reoccur on a second trip, so it's likely the cats are "on the edge" and you have some time before they get really bad. Someone else will have to … 2012 infiniti qx56, getting codes p0174 p0420 p0430. Check engine light, runs rough, rough idle, loss of power, limp mode? ... Service engine soon light came on (reset and it returns) Codes: P0135 and P0420. Reading device said it is the O2 sensor Bank 1 Sensor 1. I know sensor 1 is before the cat convertor, but do not know if it is on the side by the firewall (I think this is bank 1 as it is on my toyota) or on the side by the radiator. Please advise if you can. Re: 08 G35X P0420 cat low efficiency. Post by Piotr93 » Wed Jun 15, 2016 1:49 pm. audtatious wrote: First thing to do is make sure you do not have an exhaust leak which could trigger this code. For HFC's I'm running Invidia on my coupe and it's been issue-free for 6+ years. I've heard good things about Kinetix and a lot of people run Berk. O2 Sensor Spacer G35 350Z ( P0420 P0430 ) no Engine Lights Anymore DIY!Antidepressants are commonly prescribed to help treat symptoms of OCD, but other medications, such as antipsychotics, might also help. Medications can help lessen the intensity of ...Oct 29, 2021 · That’s the way it’s supposed to be. When the downstream sensor begins to switch at the same rate as the upstream sensor, the P0420/P0430 codes are stored by the PCM to flag the failure of the catalyst to store oxygen. P0430 vs. P0420. The P0430 code’s mirror image is P0420, which applies to the converter on bank 1. 5 years 6 months ago #23617. Infiniti fX35 AWD P0420 and P0430 was created by Andy.MacFadyen. If the outputs post cat look identical there isn't much hope you can revive them, if you want to try I would suggest 24 hour soaking in a bio clothes washing detergent then an 24 hours mild acid such as citric acid which is cheap off ebay and is also ...Pizza Brain in Philadelphia holds the Guinness World Record for the largest pizza memorabilia collection. Here are some of what you’ll see. Philadelphia has many things to see, lik...Nov 17, 2021 · A check engine light appeared with engine code P0420 (Catalyst System Efficiency Below Threshold (Bank 1)). Unfortunately, no other errors appeared pointing to a specific oxygen sensor so it could be many things. The P0430 code’s mirror image is P0420, which applies to the converter on bank 1. As was mentioned, bank 1 and bank 2 simply refer to the different sides of the engine. It’s also worth noting that engines with an inline or straight cylinder configuration only have one bank, although some inline six-cylinder engines will have two “banks” and two …Mar 18, 2019 ... P0420 Nissan Armada/Infiniti QX56/QX80 O2 Sensor Upstream Bank 1 Replacement How-To. Blue Collar Garage•36K views · 4:23 · Go to channel ...I recently got two codes on my infiniti. P0420 and P0430. I did not try to reset it. I have a 2012 QX56, All I did - Answered by a verified Infiniti MechanicHow to diagnose code P0420 on a Infiniti QX50. Typically, you'll find out about P0420 because your malfunction indicator lamp or "check engine light" turned on & you or a mechanic diagnosed the problem with an OBD II code scanner like this one from Bluedriver. You may experience a very slight reduction in engine power from reduced exhaust flow ...To diagnose the P0420 2006 Infiniti G35 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Описание ошибки P0420: Двигатель запущен, напряжение аккумуляторной батареи не менее 11,5 В, все электрические компоненты отключены, соединения с массой между двигателем и шасси надежно соединены, температура ...The fault code P2237 indicates an issue with the oxygen sensor circuit in the bank 1 sensor 1. The diagnosis process involves checking the wiring, connections, and the sensor itself. The fixing cost depends on the repair time, which is estimated to be 1.0 hour. Most auto repair shops charge between $75 and $150 per hour, which will affect the ...Maybe a new series?All the basics about the engine codes P0420 and P0430Check out my new shirts on teespring here:https://teespring.com/stores/salem-doyle-yo...Infiniti Mechanic: Jay. The Code P0420 is for the Bank 1 ( Drivers Side ) Catt Converter. The Catt Converter is part of the Exhaust Manifold. This code is not cause by a 02 sensor not operating properly. This is actually caused when 02 sensors are working but the Catt Converter is not converting exhaust gases properly.There are only two things that clean carbon off. Acetone, or steam. In the commercial injector cleaners, one of the primary ingredients is acetone. But a $170. injector clean, at the shop, can be accomplished by adding 3oz of acetone-per 10 gallons of gas, plus the lucas injector cleaner/upper cylinder lubricant mix.

Vehicle was throwing code p0420 Catalyst sy ...more. This video will show you how to replace the upstream oxygen sensor bank 1 on a Nissan Armada and or …. Craigslist houses for rent in roanoke va

infiniti p0420

V. I have a 2008 Toyota Prius, Like many here, I had the impossible dreaded P0420 Code. This is what I tried that did not solve this problem: 1. Changed both the upstream air/fuel sensor (a bitch to replace) and the down stream o2 sensor-no luck. 2. cleaned the air/fuel sensor on the air box and cleaned the throttle body and air box! No …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 ...Service engine soon light came on (reset and it returns) Codes: P0135 and P0420. Reading device said it is the O2 sensor Bank 1 Sensor 1. I know sensor 1 is before the cat convertor, but do not know if it is on the side by the firewall (I think this is bank 1 as it is on my toyota) or on the side by the radiator. Please advise if you can.Post by Rogue One » Mon Jan 25, 2016 9:56 pm. P0420 NISSAN ROGUE - Catalyst System Efficiency Below Threshold Bank 1. Tech notes. As the code description implies the P0420 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting ...The “Catalytic Converter Efficiency” Diagnostic Trouble Codes (DTCs) P0420 and P0430, are among the top 10 DTCs technicians face. And while the description …In this video, you'll learn the causes and solutions of the P0420 code. The causes of the P0420 code are a bad catalytic converter, an ECM update, an exhaust... P0420 is a diagnostic trouble code (DTC) for "Catalyst System Efficiency Below Threshold (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic ... Dec 10, 2021 · The “Catalytic Converter Efficiency” Diagnostic Trouble Codes (DTCs) P0420 and P0430, are among the top 10 DTCs technicians face. And while the description might imply a failed converter, odds are the ultimate fault lies somewhere else. Finally got back on the bike to do another vlog...but it's about my car and the dreaded P0420 code I've been battling on/off for the last 2 years.My Florida ...P0420 is a diagnostic trouble code (DTC) for "Catalyst System Efficiency Below Threshold (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈== How to Fix P0420 =====Engine Code P0420 Saving Repair Part...Hi Jay, Back again with another question. I recently got two codes on my infiniti. P0420 and P0430. I have software to monitor my O2 sensors but am having a difficult time deciphering the data. what additional info can I give you to point us in the right direction. Show More. Show Less. Ask Your Own Infiniti Question.=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0420 Saving Repair Parts:E...Jul 8, 2004 · Or, use a small screwdriver to turn the diagnostic mode selector switch, located on the side of the ECM/ECU, fully clockwise. After waiting two seconds, rotate the switch to the full counterclockwise position. The diagnosis will end and memory will then be cleared. OBD II Codes. P0000 No Self Diagnostic Failure Indicated. To diagnose the P0420 2006 Infiniti G35 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.O2 Sensor Spacer G35 350Z ( P0420 P0430 ) no Engine Lights Anymore DIY!Matador is a travel and lifestyle brand redefining travel media with cutting edge adventure stories, photojournalism, and social commentary. PART OF THE CARIBBEAN’S Lesser Antilles...The P1762 code is also known as the “Overdrive Band Failed Off” code. This code indicates that there is a problem with the overdrive system in your vehicle’s transmission. Overdrive is the highest gear in the transmission, and it’s used to increase fuel efficiency by allowing the engine to run at a lower RPM. When the overdrive system ...Code P0420 2003 Infiniti G35 Description. The Engine Control Module monitors the switching frequency ratio of heated oxygen sensors 1 (front O2 sensor) and heated oxygen sensors 2 (rear O2 sensor).A three way catalyst converter (Manifold) with high oxygen storage capacity will indicate a low switching frequency of heated oxygen …"This video is copyrighted material of Nissan North America, Inc. and should not be copied, edited, or reproduced without the permission of Nissan.The Vehicl...scr38. 5213 posts · Joined 2004. #2 · Dec 5, 2016. Right primary cat or O2 sensor is bad. The cat is part of the manifold assembly, and is very expensive to change. Check the sensor first. You could switch the right and left O2 sensors Get the code cleared; if the 430 code comes back you have a bad right cat, if you get a 420 code the sensor ....

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