P0420 infiniti code

The most common fix for P0420 in the Ford Fusion is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Fusion 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 Ford Fusion: 1. Check for Other Codes.

The service engine soon light came on, the computer listed code P0420 which says that the catalyst system efficiency for bank 1 is below threshold for the current engine operating conditions. In the meatime, I checked the air filter which was very dirty, as soon as I replaced it the engine performance improved right away.Save up to $328 with top Norton coupon codes. Get 66% off Norton 360 + family plans from only $8.29 per month. PCWorld’s coupon section is created with close supervision and involv...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 …To diagnose the P0420 2016 GMC Sierra 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.How 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 ...

Home Forums > Infiniti QX70 FX Forums > QX70 / FX Forum (2009-2017) > 3.5L Getting codes p0420 and p0430 Discussion in 'QX70 / FX Forum (2009-2017)' started by teemoney, Oct 31, 2017. Oct 31, 2017 #1. teemoney Member. Messages: 638 Likes Received: 25. Location: Toronto, CanadaWhat 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.1999 Honda Civic EX 1.6L with p0420 code. Problem: MIL Lamp on (P0420) ... 2001 Infiniti QX4 3.5L: Relearn Iddle: 1997 Mazda Protege DX 1.5L: Replace CAT: 1999 Honda Civic EX 1.6L: Replace CAT: 2008 Subaru Outback 2.5L: Replace CAT: 1998 Pontiac Grand Prix SE 3.1L: Replace CAT: 2006 Subaru Legacy 2.5i:How To Fix The P0420 Trouble Code. Verify the code with an OBD-II scanner and reset the check engine light to see if it comes back. Inspect and replace faulty oxygen sensors. Check for exhaust leaks and repair as necessary. Replace worn-out spark plugs or spark plug wires.P0300 Infiniti Code - Cylinder Misfire Detected Random Cylinders - Code Popularity: 98,733 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 3/3. Table of contents. Created and updated by William Orellana on …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). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be ...

Check engine light code P0011 means Intake Camshaft Position Timing- Over-Advanced (Bank 1). ... Popular Engine Codes P0420 P0172 P00171 P0128 P0300 P0456 P0430 P0442 P0455 P0113. ... where is bank 1 located on 2007 infiniti m35. Reply. Amanda says: June 18, 2019 at 8:13 pm.Has your check engine light recently turned on? Are you seeing the dreaded error code P0420 on your vehicle’s diagnostic scanner? Don’t panic just yet. Code P0420 is a common issue...August 4, 2022. OBD Code P0420 is an extremely common indicator of an issue with the operating efficiency of your Infiniti QX60's catalytic converter, so it's letting you know by …Interpreting the P0420 Code. If the O2 sensors detect similar results, then something is not right. The values of oxygen have to be different upstream and downstream from the converter. If not, the O2 sensor sends this information to the ECU, which signals the P0420 code. Common Symptoms of a P0420 CodeNow my car died and ended up with p0420 and p0430. Can someone help with what to do now with this two new errors im getting. Now my car just sputters and will not start.Aug 4, 2022 · 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 ...

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What is the Cost to Diagnose the Code? Labor: 1.0. The cost to diagnose the P0057 Infiniti code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.Home Forums > Infiniti QX70 FX Forums > QX70 / FX Forum (2009-2017) > 3.5L Getting codes p0420 and p0430 Discussion in 'QX70 / FX Forum (2009-2017)' started by teemoney, Oct 31, 2017. Oct 31, 2017 #1. teemoney Member. Messages: 638 Likes Received: 25. Location: Toronto, Canada1999 qx4 p0430 code. i changed all the 02 sensors and that fixed the p0420 code for bank 1 but the p0430 code still exists. i checked the EGR valve and when i apply vacuum to it the car ... 2001 infiniti qx4-replaced MAF, then got code 138 I believe for bank 1 o2 sensor 2. replaced o2 then got code 430. should I reset the codes before I follow ...Interpreting the P0420 Code. If the O2 sensors detect similar results, then something is not right. The values of oxygen have to be different upstream and downstream from the converter. If not, the O2 sensor sends this information to the ECU, which signals the P0420 code. Common Symptoms of a P0420 CodeSo 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. ... A place for Infiniti owners and fans to hang out and chat about the cars, brand, modding ...

To diagnose the P0420 2001 Toyota Echo 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.Here are some diagnostic steps to help resolve the P0420 code in a GMC Sierra: 1. Check for any existing exhaust leaks: Inspect the exhaust system thoroughly for any signs of leaks or damage. Repair any leaks found before proceeding further. 2.S. street101 Discussion starter. 10 posts · Joined 2010. #1 · Jan 25, 2011. 03 Nissan Altima 2.5 Just bought the car a month ago with 124,000 now have 126,512 and I am getting check engine light p0420. Any Ideas, I know about the pre-cat is this usually the code. Like. Sort by Oldest first.2. Inspect the catalytic converter - A failing or damaged catalytic converter can trigger the P0420 code. Check for any physical damage or blockage in the converter. 3. Clean or replace oxygen sensors - Faulty oxygen sensors can also trigger the P0420 code. Check the sensors' connections and consider cleaning or replacing them if necessary.Now it comes on within a shorter period. Sept 2017 I ran a P0430 Bank 2 code and took the M to Infiniti. They said the 3 way cat assembly needed replacing. Cost $1200 in 2017. If it is the cat is this something a good repair shop can do or do I go to Infiniti to replace it assuming the catalytic converter is bad. 06' M35X with 110,000 on the clock.Top 4 Reasons Why You Replaced O2 Sensor and Still Have Code. The most common codes that people will see in this particular situation are P0134, 0138, and 0139, though you are probably seeing P0420. These codes do not point out to a specific issue but they can help hint at the root cause of the issue. Here are a couple of the parts to take a ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix P0174 =====Engine Code P0174 Saving Repair ...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). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be ...How 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 …

The P0420 code is a common diagnostic trouble code that indicates a problem with the catalytic converter in the Hyundai Santa Fe. When this code appears, it means that the catalytic converter is not functioning properly and is not effectively reducing emissions. The catalytic converter plays a crucial role in reducing harmful exhaust emissions ...

Cause: Three way catalyst (manifold) Exhaust tube. Intake air leaks. Fuel injector leaks. Spark plug. Improper ignition timing. Related Service Bulletins: ITB02-050A. ITB13 …When you get a P0420 code it will read “Catalyst system efficiency below threshold (bank 1)”. This points to an issue with your catalytic converter. However, there are a number of issues that can cause this beyond just the catalytic converter. P0420 engine codes can be caused by a bad catalytic converter, exhaust leaks, or bad oxygen sensors.There are several potential causes for the Nissan code P0420 bank 1, including: A faulty catalytic converter. An oxygen sensor (O2 sensor) that is not functioning properly. An exhaust leak before the catalytic converter. An engine misfire. Fuel system issues such as a clogged fuel injector.How to fix a P0430 engine code: Catalyst System Efficiency Below Threshold Bank 2How To Test Oxygen Sensor Heater Element Video: https://www.youtube.com/wat...Aug 4, 2022 · 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 ... Nissanclub.com Nissan - Infiniti Enthusiast Forums. NISSAN ALTIMA FORUMS. Engine Performance (2002-2006) ... But now I'm having the code P0420 show up and i don't understand why because the header is Brand New and i bought some de-fowlers to keep the O2 sensors out of the direct heat to make it think there is still a cat converter.i have a 2001 infiniti qx4 with a idle problem, up and down. codes showing p1145, p1140, p0430, p0420, p0505, replaced the cam position sensors, and the throtle position sensor. all codes cleared but still have a idle problem, up and down even when in drive. Answered in 10 minutes by: Infiniti Mechanic: Ryan. Ryan.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). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be ...Code P0420 2011 Nissan Rogue Description. The Engine Control Module ( ECM) 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 sensor 2.Catalytic converter replacement. How to replace a catalytic converter DIY with Scotty Kilmer. Catalytic converter replacement in your car (Code P0420). Tips ...

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Top 4 Reasons Why You Replaced O2 Sensor and Still Have Code. The most common codes that people will see in this particular situation are P0134, 0138, and 0139, though you are probably seeing P0420. These codes do not point out to a specific issue but they can help hint at the root cause of the issue. Here are a couple of the parts …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.Jul 10, 2006 · Duricell Discussion starter. 108 posts · Joined 2006. #1 · Jul 10, 2006. P0420 Catalyst System Low Efficiency and P0430 which is the second bank...I keep on throwing these codes...I do have an aftermarket exhaust and the exhaust gas smells very rich....Does anyone have an idea how to change the fuel mix or do you thing it is the O2 sensors ... The dead cat codes, P0420 and P0430 no longer registered. The engine ran very well, idled smoothly and could rev to 6k rpm. But the random misfire code, P0300 remained. In fact, it appeared much more often and continued to flash much longer.=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code NISSAN P0430 Saving Repa...Do you have Check Engine Light on your car's dashboard? Does your car read code P0420? Are you unable to pass emission test or is the catalytic converter jus...P0420 Code on 2013 INFINITI JX35. Hi, I have a 2013 Infiniti JX35 AWD with a P0420 code and the check engine light comes and goes. Rpm is a little wobbly but the car is in great condition same as the engine. When idling, the catalytic converter has a sound as if something were loose inside. I bought it for $13,000, what should I do?=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix P0174 =====Engine Code P0174 Saving Repair ...2001 I30 Infiniti Base -Emission failure Code P0420 (oxy.sensors)= off and on 6 months, now P0430 -service mechanic tested; all 4 sensors and catalytic converters need replacement 105,000 mi. Problem … read moreMost times it points to a bad converter, leaking exhaust (such as from a cracked manifold), or that combustion isn't happening correctly (intake air leak, goofy fuel injector, or spark plug issues). The combustion issue usually comes with other codes as well. Re: P0420 - Service Engine Soon. ….

Duricell Discussion starter. 108 posts · Joined 2006. #1 · Jul 10, 2006. P0420 Catalyst System Low Efficiency and P0430 which is the second bank...I keep on throwing these codes...I do have an aftermarket exhaust and the exhaust gas smells very rich....Does anyone have an idea how to change the fuel mix or do you thing it is the O2 sensors ...Customer Concern: Infiniti Malfunction Indicator Light (MIL) is on. Exhaust Valve Timing (EVT) control codes P0014, P0024. Cleared the codes and they return...A code P0420 may mean that one or more of the following has happened: Leaded fuel was used where unleaded was called for (unlikely) A damaged or failed oxygen / O2 sensor. Downstream oxygen sensor (HO2S) wiring damaged or connected improperly. The engine coolant temperature sensor is not working properly.Diagnosing and Fixing the P0420 Code. To diagnose the P0420 code, it is essential to perform a comprehensive inspection of the catalytic converter, oxygen sensors, and related components. This may include checking for exhaust leaks, conducting voltage tests on the oxygen sensors, and using diagnostic tools to monitor the catalyst's efficiency.Many factors can cause the car computer to register DTC P0420 on Toyota or any car model. This makes it challenging to diagnose and fix the problem. Engine running rich or lean. Malfunctioning upstream or downstream oxygen sensor. Leaking fuel injectors. Lousy catalytic converter. Lousy engine coolant temp sensor.We will be diagnosing and repairing codes p0021 and code P0011 on this Infiniti.I will show you how to check the variable valve timing and a few repairs you ...Turn the ignition switch ON. 7. Turn the ignition switch OFF and wait at least 10 seconds. 8. Start the engine and keep the engine speed between 3,500 and 4,000 RPM for one (1) minute under no load. 9. Let the engine idle for 1 minute. 10. Keep the engine speed between 2,500 and 3,000 RPM for 20 minutes.Code P0420 Nissan Description. The Engine Control Module ( ECM) 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 sensor 2.Codes: P0135 and P0420 on I30 2001 Infiniti I30. Post by lynnjester » Mon Dec 19, 2011 2:41 pm. 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 ... P0420 infiniti code, 2002 infiniti I35. had a p0420 for the longest time until the other day. my lady was coming home and lost all power on the highway. started knocking loudly. ended up towing it home. checked the codes, and got the p0420. bank 1. replaced the cat and it ran great down the highway for about 30 miles and did it again. now im getting a p0300 nothing else. car idles fine, and sowes no issues until ..., The P2A00 code refers to an issue that the Power Control Module (PCM) detects with the voltage readings given by the oxygen Sensor 1 on your car's Bank 1 side. ... P0420 - Catalyst System ..., To diagnose the P0420 2005 Toyota Prius 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., 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). Replacing the oxygen (O2) …, Aug 4, 2022 · 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 ... , GET FIXD. What Does Code P0420 Mean? P0420 definition : Catalyst system efficiency below threshold (Bank 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid further damage to your emission system and possible engine damage., When you get a P0420 code it will read “Catalyst system efficiency below threshold (bank 1)”. This points to an issue with your catalytic converter. However, there are a number of issues that can cause this beyond just the catalytic converter. P0420 engine codes can be caused by a bad catalytic converter, exhaust leaks, or bad oxygen sensors., END OF SPECIAL NOTES. OBD II fault code P0420 is a generic trouble code that is defined as, P0420 - "Catalytic converter system, Bank 1 - Efficiency Below Threshold", and is set when the PCM (Powertrain Control Module) detects that the efficiency of the catalytic converter on Bank 1 has fallen below a minimum allowable threshold., Code 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). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be ..., P0420 Infiniti Code - Catalyst System Efficiency Below Threshold Bank 1 - Code Popularity: 97,182 Views - Repair Importance Level: 2/3 - Repair Difficulty Level: 2/3. Table of contents. Created and updated by William Orellana on Aug 20, 2020. Possible Causes; 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)., Apr 14, 2018 · 1 Answer. P0420 Catalytic system efficiency below threshold. Yes it can be, and the best way to clean it is to a have a clean running engine. this mean sparkplug should be in good shape, a clean airfilter, properly working front 02 sensor and the rear 02 sensor Alot of time P0420 where set by false catalytic codes due to poor maintance. Here is ... , Diagnose a P0420 or P0430 using O2 sensor data, We will be diagnosing and repairing codes p0021 and code P0011 on this Infiniti.I will show you how to check the variable valve timing and a few repairs you ..., The P0420 code in a Honda Civic refers to a fault in the catalytic converter system. This code indicates that the catalytic converter is not functioning properly, which can lead to increased emissions and reduced engine performance. It is important to address this issue promptly to ensure the vehicle meets emission standards and operates ..., O2 sensor locations explained plus an easy fix for my P0037 and P0420 codes. I go over bank 2 sensor 1, bank 2 sensor 2, and bank 1 sensor 2. These locatio..., 06 Infiniti g35 codes a200 a203 p1815 c1109 and it smells like gas fumes . Recently replaced catalytic converters ... 01 qx4 94000 miles code p0420 p0430 would both cats be bad., The P0420 code is a common diagnostic trouble code (DTC) that appears in Nissan Sentra vehicles. It specifically refers to a problem with the catalytic converter efficiency. When this code is triggered, it indicates that the catalytic converter is not functioning optimally and may need to be repaired or replaced., Code P0420 2004 Infiniti G35 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). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the ..., Jan 19, 2020 · Sometimes, when you see O2 sensor related codes, fixing those might also fix the code P0420. If the code P0420 is the only code present, visually inspect any exhaust leaks before the rear O2 sensor. An exhaust leak may mislead the O2 sensor and trigger the code. If you find any broken, cracked or disconnected hoses, replace them and fix the code. , The cost to diagnose the P0420 2005 Nissan Maxima code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type., Code 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). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be ..., 18 Aug 2023 ... EricTheCarGuy Explains Check Engine Codes - P0420 Catalyst System Efficiency Below Threshold., Re: 2008 Infiniti G35 Sport Fault Codes. Post by audtatious » Thu May 29, 2014 7:58 pm. The C* codes are related to tire pressure sensors. The others _could_ be triggered from an electrical issue I guess. Have the owner fix the charging issue, clear the codes, see if the come back., What is the Cost to Diagnose the Code? Labor: 1.0. The cost to diagnose the P0057 Infiniti code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., When you get a P0420 code it will read "Catalyst system efficiency below threshold (bank 1)". This points to an issue with your catalytic converter. However, there are a number of issues that can cause this beyond just the catalytic converter. P0420 engine codes can be caused by a bad catalytic converter, exhaust leaks, or bad oxygen sensors., Jan 6, 2024 · One of the most common catalytic converter codes your vehicle will throw at you is the P0420 (not to be mistaken with trouble code P0430). This diagnostic trouble code (DTC) stands for "Catalyst System Below Efficiency", coming from the bank 1 mounting position. , 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 ..., Code P0420 2011 Nissan Rogue Description. The Engine Control Module ( ECM) 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 sensor 2., A P0420 code is set when the upstream sensor and the downstream oxygen sensor sense the catalytic converter is not doing its job. Basically, the amount of oxygen going into the converter is not being burned, and it detects it through the downstream sensor. Oxygen is the key here. Modern Engine Management Systems leave a little bit of extra ..., P0420 Infiniti Fx35 code definition: P0420 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Infiniti Fx35. P0420 Infiniti Fx35 is described as Fuel Rail Pressure Sensor Circuit Malfunction. This code is strictly about the incoming signal from the FRP (fuel rail pressure) sensor falling below the calibrated limit for a ..., Reaching out to the forum. The dreaded P0420 code is back telling me there's a cat issue. 97,000 on the clock. Is it possible that there are sensors involved here and not the actual 3 way cat assembly? At 84,500 Infiniti replaced Bank 2 three way cat assy based on a P0430 code. Cost over $1,000. Appreciated any comments on this post., 20 Nov 2022 ... How to fix a Toyota P0420 Code, "Catalyst System Efficiency Below Threshold (Bank 1)." Link to Cataclean on Amazon: https://amzn.to/3TSI6xW ...