Honda dtc p0430

U0401-68 is a DTC that indicates a malfunction in the vehicle’s VSA brake actuator system. These codes can be read using a diagnostic scanner and can help mechanics and technicians quickly identify and fix problems with a vehicle. In this blog post, we will be discussing the specific DTC code U0401-68 and its implications for Honda …

This page is meant to help you troubleshoot the Honda Accord 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. ... The bank 2 version of this code is P0430.Feb 11, 2021 · WOOPS. Check engine light came on, code P0430 Catalytic Efficiency Below Threshold, gas mileage in the toilet. Called and made an appointment. Check engine light went off before the appointment date. Gas mileage going up, but still WAY too low. Service writer said checking gas mileage for three full months is mandatory, per Honda, no exceptions. John Hege. Automotive Mechanic. 40 years of experience. A P0430 code indicates the catalyst efficiency has fallen off. If there are no other codes indicating misfires and if the check engine light is not blinking, you should be OK to drive your car. If you have trouble scheduling a convenient repair, you can call YourMechanic to have a mechanic ...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 Contents. This page is meant to help you troubleshoot the Jeep Wrangler P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible …Honda TSB 21-010 Make: Honda Number: 21-010 Title: Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (Without Software Update) Date: 2/11/2021 Models: 2018-2019 Odyssey; 2017-2019 Pilot; 2017-2019 Ridgeline; Summary: The PCM software may misinterpret sensor inputs as a deteriorated catalytic …

John Hege. Automotive Mechanic. 40 years of experience. A P0430 code indicates the catalyst efficiency has fallen off. If there are no other codes indicating misfires and if the check engine light is not blinking, you should be OK to drive your car. If you have trouble scheduling a convenient repair, you can call YourMechanic to have a mechanic ...I have a question. I have a 2010 Honda Accord EXL V6. my check engine light will come on, stay on for a day or so, then turn off. The codes that are on are P0420 (confirmed, and pending) and P0430 (conformed, pending, permanent). If I have to replace a cat, do you have any recommendations on after market brands or sites that are up to …P0430 is a diagnostic trouble code (DTC) for "Catalyst System Efficiency Below Threshold (Bank 2)". 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 ...What does this mean? Tech Notes. As the code description implies the P0430 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 is expecting).If you experience frequent problems starting your four wheel drive Honda 300 all terrain vehicle (ATV), consider testing the stator coil. Another symptom of a bad stator is if the ...Soon after the check engine light came on. When I got home I scanned the code and P0420 and P0430 came up. I cleared the codes and 2 days later only the P0420 reappeared. ... Content on ridgelineownersclub.com is generated by its users. ridgelineownersclub.com is not in any way affiliated with Honda Motor Company …

Feb 11, 2021 · WOOPS. Check engine light came on, code P0430 Catalytic Efficiency Below Threshold, gas mileage in the toilet. Called and made an appointment. Check engine light went off before the appointment date. Gas mileage going up, but still WAY too low. Service writer said checking gas mileage for three full months is mandatory, per Honda, no exceptions. 17 Mar 2020 ... I have a 2013 Honda Odyssey with 127K miles that recently got a check emission light that came on. I checked the code and only got a ...Honda Pilot 2009 with 217xxx miles on it. Both P0420 and P0430 codes got shown yesterday. Researched a lot and figured I should buy OBD2 scanner with live data to see the output of downstream O2 sensors. Bank 1 sensor had a perfect flat line around 700-ish mV (don't know why P0420 showed up). Bank 2 sensor fluctuated a bit (200 to 800 mV), not ...This page is meant to help you troubleshoot the Ford Expedition 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 …May 18, 2021 · Honda Pilot 2009 with 217xxx miles on it. Both P0420 and P0430 codes got shown yesterday. Researched a lot and figured I should buy OBD2 scanner with live data to see the output of downstream O2 sensors. Bank 1 sensor had a perfect flat line around 700-ish mV (don't know why P0420 showed up). Bank 2 sensor fluctuated a bit (200 to 800 mV), not ...

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Good luck trying to buy a Toyota, Kia or Honda. These auto brands have the lowest supply of cars available for sale at dealerships now. By clicking "TRY IT", I agree to receive new...Jan 16, 2024 · The first subheading explores the meaning and significance of the Honda Code P0430. This code refers to a malfunction in the catalytic converter system of a Honda vehicle. The P0430 code indicates that there is a problem with the efficiency of the catalytic converter in bank 2 of the engine. This subheading would provide an explanation of how ... Honda TSB 19-073 Make: Honda Number: 19-073 Title: MIL Comes On with DTC P0430 or P0430 with P030X, P219A, P219B (Without Software Update) Date: 2/11/2021January 3, 2023 by Jason. This page is meant to help you troubleshoot the Honda Odyssey P0430 trouble code. It covers the P0430 code’s meaning, symptoms, …P0430 Catalyst System Efficiency Below Threshold (Bank 2) Technical Description. Catalyst System Efficiency Below Threshold (Bank 2) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make ... Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (Without Software Update) This bulletin replaces 18-025, MIL Comes On with DTC P0300-P0306 or P219A/B, and 19-073, MIL Comes On with DTC P0430 or P0430 with P030X, P219A or P219B (Without Software Update). AFFECTED VEHICLES Year Model Trim Level VIN Range

This page is meant to help you troubleshoot the Ford Expedition 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 …SYMPTOM. The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [bank 2]). Additionally, one or more of the following DTCs may be stored: P030X (misfire) P219A (air-fuel ratio variation of cylinder [bank 1, rear bank]) P219B (air-fuel ratio variation of cylinder [bank 2, front bank])SAVE MONEY and buy Motor Oils and Car Parts online - FREE SHIPPING!!! RECOMMENDED BY THE PEOPLES GARAGEhttp://amzn.to/1ck3B2wHow to Fix a P0420 or P0430 Code...Quick overview of cause and fix for a P3400 error code in a Honda. Link to article: https://www.backyardmechanic.org/how-to-fix-honda-engine-error-code-p3400/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.On the Honda Odyssey, OBD II Code P0430 is a DTC, or “diagnostic trouble code” that means you’ve got an issue with your catalytic converter – namely that the catalytic converter associated with bank 2 of your engine cylinders isn’t operating at full efficiency. This code can cause both minor and serious problems including increased ...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 ...As the code description implies the P0430 code means that the vehicle's Engine Control Module (ECM) has detected that the Three-way Catalyst Converter is not …This page is meant to help you troubleshoot the Honda Crosstour 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 Contents

Jul 3, 2020 · Honda Pilot P0430 OBD2 Code Diagnosis | Drivetrain Resource (700r4transmissionhq.com) Top Causes of P0430 in the Honda Pilot There are many things that can cause the P0430 trouble code in your Pilot. Here are the most common ones. Oxygen Sensor– The P0430 codes is thrown when the oxygen sensors on both sides of the exhaust have very similar ...

P0430 CODE: Catalyst System Efficiency Below Threshold (Bank 2) 01/02/2020 by JamesL Davis. The P0430 is a check engine light code that shows that the efficiency and performance of your catalytic converter are less than the required threshold. This means that every time you turn on your vehicle, you’re adding more pollution to the environment ...There are several common causes for the P0430 code in a Honda Pilot. These can include a faulty catalytic converter, oxygen sensor malfunction, exhaust leaks, or engine misfire. It is important to diagnose and address the underlying cause to avoid further damage to the vehicle and ensure its optimal performance. Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (Without Software Update) This bulletin replaces 18-025, MIL Comes On with DTC P0300-P0306 or P219A/B, and 19-073, MIL Comes On with DTC P0430 or P0430 with P030X, P219A or P219B (Without Software Update). AFFECTED VEHICLES Year Model Trim Level VIN Range The inspection facility determined the codes; Diagnostic Trouble Codes (DTC) P0300 through P0306 - Cylinders 1-6 Misfire detected as well as Random/Multiple Cylinder Misfire Detected. The mechanic suggested it may be spark plugs. We also called the Honda dealership and they suggested spark plugs as well. The check engine light self-cleared ... Trouble code P0430 displays when the electronic control unit (ECU) detects that your catalytic converter is performing below the threshold that it should be operating at. One of the functions that your ECU performs is monitoring the catalytic converter closely. When the catalytic converter is performing below threshold, the check engine light ... 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 Contents. This page is meant to help …Code P0430 Ford 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.

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This page is meant to help you troubleshoot the Honda Pilot 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 Contents. Quick ...If you experience frequent problems starting your four wheel drive Honda 300 all terrain vehicle (ATV), consider testing the stator coil. Another symptom of a bad stator is if the ...Summary: Dealer Message- American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Odyssey, ... Summary: "The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [bank 2]). Additionally, one or more of the following DTCs may be stored: - P030X (misfire) - P219A (air-fuel ratio variation of cylinder ...P0430 CODE: Catalyst System Efficiency Below Threshold (Bank 2) 01/02/2020 by JamesL Davis. The P0430 is a check engine light code that shows that the efficiency and performance of your catalytic converter are less than the required threshold. This means that every time you turn on your vehicle, you’re adding more pollution to the environment ... Te suministramos todo lo que necesitas saber sobre el código DTC P0430 Descripción, causas, síntomas y posibles soluciones. LEER SOLUCIÓN DEL CÓDIGO O... Hello! 2013 odyssey exl 132,000 mileage. Getting a p0420/0430 catalyst code. Was reset but comes back on. I’ve read many things from replace front 2 oxy sensors, to replace all 4, To replace the catalytic converters.78. The P0430 code is a common OBD-II code that indicates a problem with the catalytic converter. This code specifically refers to insufficient catalytic converter efficiency in bank 2. Identifying and fixing the cause of this code is crucial to maintaining the performance and emissions of your Ford vehicle.I have a question. I have a 2010 Honda Accord EXL V6. my check engine light will come on, stay on for a day or so, then turn off. The codes that are on are P0420 (confirmed, and pending) and P0430 (conformed, pending, permanent). If I have to replace a cat, do you have any recommendations on after market brands or sites that are up to …The Honda Civic Hybrid System - The Honda Civic hybrid system has some unique features. Learn all about the Honda Civic Hybrid system at HowStuffWorks. Advertisement If ever two au...Soon after the check engine light came on. When I got home I scanned the code and P0420 and P0430 came up. I cleared the codes and 2 days later only the P0420 reappeared. ... Content on ridgelineownersclub.com is generated by its users. ridgelineownersclub.com is not in any way affiliated with Honda Motor Company …Essentially a code P0430 is telling you that your catalytic converter isn’t converting enough exhaust into water – which is what it’s supposed to be doing. Understanding how the system works is critical to understanding what this code is telling you. Your exhaust system has two oxygen sensors, one before the catalytic converter and one after. ….

Generally, a defective O2 sensor is the root of DTC P0430 Honda. Once the sensor has malfunctioned, it might lead to a wrong reading and cause the code on your vehicle. Test the Oxygen Sensor Wiring. The O2 sensor could have broken down after a time of use. It isn’t hard to notice it gets volatile easily as the part is close to the heated ...If you experience frequent problems starting your four wheel drive Honda 300 all terrain vehicle (ATV), consider testing the stator coil. Another symptom of a bad stator is if the ...Sep 20, 2018 · The P0430 code in a Honda Accord will often be thrown if one of your car’s oxygen sensors is not functioning correctly. There are rarely drivability issues associated with P0430. For most people, the first sign that anything is wrong is the service engine soon light coming on. Feb 11, 2021 · Honda TSB 20-100 Make: Honda Number: 20-100 Title: Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (With Software Update) Date: 2/11/2021 Models: 2018 Odyssey; 2016-2017 Pilot; 2017 Ridgeline; Summary: The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. The P0430 diagnostic trouble code is generic, meaning it can appear on any vehicle type. Therefore, a P0430 code Ford and P0430 Lexus code mean the same thing. It can happen for several reasons and may warn through different symptoms. However, it shows there’s a problem with the emission system. Generally, a P0430 means the same thing as a ... February 11, 2021. Version 2. Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (With Software Update) Supersedes 20-100, dated November 24, 2020, to revise the information highlighted in yellow. This bulletin replaces 18-025, MIL Comes On with DTC P0300-P0306 or P219A/B, and 19-072, MIL Comes On with DTC P0430 or ... How to diagnose DTC P0430 on a Honda Ridgeline: This trouble code typically comes to an owner’s attention in one of two ways – when the check engine light (or more properly, the “Malfunction Indicator Lamp”) is lit, there’s a surprisingly decent chance that the issue is either DTC P0430 or DTC P0420 – catalytic converter issues really are quite common – so much so that this is ...U0401-68 is a DTC that indicates a malfunction in the vehicle’s VSA brake actuator system. These codes can be read using a diagnostic scanner and can help mechanics and technicians quickly identify and fix problems with a vehicle. In this blog post, we will be discussing the specific DTC code U0401-68 and its implications for Honda …P0430 Bank 2 is driver's side: Bank 2 is side of engine w/#2 cylinder, which is driver's side. Since I am getting only P0430 and not also P0420 (Bank 1 passenger side) I suspect a O2 sensor or air/fuel ratio sensor on the drivers side, not something that would be common to both sides such as dirty MAF sensor, fuel tank cap, fuel pump, fuel ... El código de diagnóstico P0430 DTC de Honda se refiere a un problema en el sistema de control del motor. El Módulo de Control del Motor (ECM) monitorea la frecuencia de cambio de los sensores de oxígeno calentados 1 (sensor O2 delantero) y 2 (sensor O2 trasero). Un convertidor catalítico de tres vías (colector) con una alta capacidad de ... Honda dtc p0430, On the Honda Odyssey, OBD II Code P0430 is a DTC, or “diagnostic trouble code” that means you’ve got an issue with your catalytic converter – namely that the catalytic converter associated with bank 2 of your engine cylinders isn’t operating at full efficiency. This code can cause both minor and serious problems including increased ..., This page is meant to help you troubleshoot the Hyundai Santa Fe 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 …, 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 ..., Warranty Extension : DTC P0420/P0430, P030x or P219A/B - Get your refunds ... piloteers.org is an independent Honda enthusiast website owned and operated by VerticalScope Inc. Content on piloteers.org is generated by its users. piloteers.org is not in any way affiliated with Honda Motor Company, 596 posts · Joined 2021. #4 · Mar 21, 2022. P0420 and P0430 just refers to bank 1 and bank 2. Bank 1 refers to the 3 cylinders in front of the car. Bank 2 refers to the 3 cylinders closest to the firewall. The 2006 has four O2 sensors, there is one upstream (before catalytic converter) and downstream (after catalytic converter) for both banks., SYMPTOM. The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [bank 2]). Additionally, one or more of the following DTCs may also be stored: P030X (misfire) P219A (air-fuel ratio variation of cylinder [bank 1, rear bank]) P219B (air-fuel ratio variation of cylinder [bank 2, front bank]), 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 ..., 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 ..., If you’ve recently found yourself staring at your Honda’s radio, unable to unlock it because you don’t have the code, don’t worry – you’re not alone. Many Honda owners face this fr..., 27 Sept 2021 ... Does Cataclean really fix a P0420 / P0430 ... The Trainer #118: The REAL Cause Of P0420/P0430 DTCs ... DTCcodes•6.7K views · 8:10 · Go to channel&nbs..., , *Includes new fuel injectors and all must-replace parts.. INSPECTION. 1. Connect the HDS, and do an all-DTC check.. Are any of the DTCs listed below present? P0420; P0430; P0300-P0306; P219A; P219B; Yes – Do the following depending on the DTC(s) present: – P0420 or P0430 only – Go to the next step to start the cylinder AF …, The exact definition for the P0430 code is “Catalyst System Efficiency Below Threshold Bank 2”. This practically means that the catalytic converter on bank 2 exhaust manifold isn’t working as it should. That results in increased bad emissions being released into the atmosphere., Code: P0430. Definition: Front Bank Catalyst System Efficiency Below Threshold (Bank 2) Description: The execution time is once per driving cycle and the duration time is 102 seconds or more. The number of detections is 720 (CTAGLT68) or more. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot., This page is meant to help you troubleshoot the Honda Accord 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. ... The bank 2 version of this code is P0430., P0430 is a generic diagnostic trouble code that indicates a malfunction within the catalyst system. It may been seen with misfire codes and oxygen sensor codes. What the P0430 …, El código de diagnóstico P0430 DTC de Ford se refiere a un problema en el sistema de control del motor. El Módulo de Control del Motor (ECM) monitorea la frecuencia de cambio de los sensores de oxígeno calentados 1 (sensor O2 delantero) y 2 (sensor O2 trasero). Un convertidor catalítico de tres vías (colector) con alta capacidad de ..., Oct 29, 2021 · P0430 is a diagnostic trouble code (DTC) for “Catalyst System Efficiency Below Threshold (Bank 2).” It warns about a problem with the catalytic converter mounted near engine bank 2 (the side of the engine opposite the number one cylinder). , How to Fix HONDA P0430 Engine Code in 3 Minutes [3 DIY Methods / Only $4.97] - YouTube. nonda. 91.4K subscribers. Subscribed. 243. 47K views 2 years ago …, When it comes to purchasing a generator, one of the most important considerations is the price. Honda is a well-known brand in the generator industry, and their products are known ..., Today, Check Engine light came on. DTC's follow: P0430- Store: Cat System Efficiency Below threshold Bank 2. C0300- Store: Rear Speed Sensor Malfunction. P0430 - Pending: Cat System Efficiency Below threshold Bank 2. C0700 - Pending: No Description., 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 ..., TSB 21-010: Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (Without Software Update) Jump to Latest Follow 21 - 40 of 115 Posts. 1 2 of 6 Go to page. Go. 6 ... 2020 Modern Steel Metallic RTL-E with Honda Bed Cover and Bed Extender. Save Share. Like. L., As the code description implies the P0430 code means that the vehicle's Engine Control Module (ECM) has detected that the Three-way Catalyst Converter is not …, The Honda SL350 was a classic, vintage, dirt bike built from 1969 until 1973. It had lights, license plate bracket and instrumentation, making it street legal with many off-road fe..., This page is meant to help you troubleshoot the Dodge Ram 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 Contents. Quick Info ..., According to the specifications page on Honda, the Honda CRV has a towing capacity of 1500 pounds. For a fuel-efficient SUV, the towing capacity of the CRV is in range with its com..., Trouble code P0430 displays when the electronic control unit (ECU) detects that your catalytic converter is performing below the threshold that it should be operating at. One of the functions that your ECU performs is monitoring the catalytic converter closely. When the catalytic converter is performing below threshold, the check engine light ..., This page is meant to help you troubleshoot the Chevy Silverado 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 …, When you get a code P0430, it means that the second oxygen sensor, the one after the catalytic converter, is displaying too many particulates, or there isn’t …, TSB 21-010: Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (Without Software Update) ... Glad Honda stepped up and finally covered this ..., authorized Honda automobile dealer. February 13, 2014 14-002 Applies To: SeeVEHICLES AFFECTED MIL Is OnWith DTC P0420 or P0430 (Supersedes , MIL Is OnWith DTC P0420 or P0430, dated January 18, 2014, to revise the information marked by the black bars) REVISION SUMMARY Under VEHICLES AFFECTED, vehicle years were changed. …, Essentially a code P0430 is telling you that your catalytic converter isn’t converting enough exhaust into water – which is what it’s supposed to be doing. Understanding how the system works is critical to understanding what this code is telling you. Your exhaust system has two oxygen sensors, one before the catalytic converter and one after.