OBD2 Diagnostic Trouble Code P0430 means that the sensor in the catalytic converter located in bank 2 has detected the catalytic converter’s efficiency below the threshold. A catalytic converter’s job is to burn up the remaining raw fuel after the combustion process and to eliminate or reduce harmful emissions. Bank 2. Bank 2 is the side of your Ram’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your truck’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.This repair should also apply to the Buick enclave, Chevy traverse, and Saturn outlook of the same generationDownstream part # Bosch 16089A code P0430 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; There is an exhaust leak; Possible Solutions First, inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2.As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase. When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed. P0430 Infiniti Code - Catalyst System Efficiency Below Threshold Bank 2A Quick and Easy P0430 Test. You can determine if P0430 is caused by a bad oxygen sensor by swapping the bank one O2 sensors with the bank two O2 sensors. If the code changes to P0420, that would indicate …When it comes to finding a dentist, many factors come into play – experience, reputation, availability, and affordability. However, one factor that often gets overlooked is locatio...Bank 2. Bank 2 is the side of your Wrangler’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your vehicle’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.2. Replace the oxygen sensors: Faulty oxygen sensors can sometimes trigger the P0430 code. Consider replacing them if they are old or worn out. 3. Clean or replace the catalytic converter: Over time, the catalytic converter can become clogged or damaged, leading to the P0430 code. Try cleaning it first using a specialized cleaner, …2002 XLS 2WD. March 17, 2018. #2. The "bank" refers to the row of cylinders (left=driver's side; right = passenger side). Bank 1 is the bank where the No. 1 cylinder is; Bank 2 is the other bank. On the 4.0 SOHC (and I think also on the 4.6), Bank 1 is on the right side. If you get a code reader (cheap), or even better a cheap bluetooth OBD II ...The P0430 code is a diagnostic trouble code (DTC) that may appear on the vehicle’s onboard diagnostic (OBD-II) system. It specifically relates to the catalyst system’s efficiency, specifically in Bank 2 of the engine. Bank 2 typically refers to the side of the engine that does not contain the number one cylinder.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. ... (Bank 2) Symptoms: Check engine light: Common Causes: Bad catalytic converter, O2 sensors: Breakdown Risk? Rarely (it’s an emissions code) Repair Cost (Parts) $250 …Bank 2. Bank 2 is the side of your Caravan’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your van’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.The P0430 code is a diagnostic trouble code (DTC) that may appear on the vehicle’s onboard diagnostic (OBD-II) system. It specifically relates to the catalyst system’s efficiency, specifically in Bank 2 of the engine. Bank 2 typically refers to the side of the engine that does not contain the number one cylinder.0. Year, Model & Trim Level. 2003 Eddie Bauer 4WD. March 17, 2018. #1. Getting the P0430 code. "Bank 2 under threshold". I want to try replacing the 02 sensor …The code then was a P0430 (power train: catalytic system efficiency/bank 2) and some others re: the ABS lights. My understanding is that when there is something wrong detected with the power train system, other associated systems that depend on it working correctly like traction control and etc. also are automatically disabled for safety …Are you looking for a reliable and customer-focused bank near you? Look no further than Eastern Bank. With a long-standing reputation for exceptional service and a wide range of fi...Bank 2. Bank 2 is the side of your Highlander’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your vehicle’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase. When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed. P0430 Honda Code - Catalyst System Efficiency Below Threshold Bank 2Bank 2. Bank 2 is the side of your Charger’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your car’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.Mar 13, 2011 ... For the P0430 Code, Bank 2, you need to replaced the catalytic converter in front of the radiator. See attached image. The orange colored part.Nov 21, 2023 · Code Fault Location Probable Cause; P0430: Catalytic converter system, bank 2 -efficiency below threshold (Buy Part On Amazon): Catalytic converter, exhaust manifold, wiring, o2 sensors Jun 23, 2022 · P0430, “Catalyst System Efficiency Below Threshold (Bank 2)” means the issue triggering it is happening in Bank 2 (where your vehicle’s cylinder number 2 is located). According to our mechanic, “Generally, this code means that you need a new catalytic converter.”. When your car’s catalytic converter is working correctly, it breaks ... 1 post · Joined 2015. #1 · Apr 26, 2015. I'm getting a P0430 code on my 2009 Traverse so, I need to replace the Bank 2 Catalytic Converter. which one is the bank 2 Converter. When I look up parts on Rockauto I get UNDERCAR CONVERTER 50477, FRONT LEFT RADIATOR SIDE 50456, & FRONT RIGHT FIREWALL SIDE 50457. Now is front left …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 repair should also apply to the Buick enclave, Chevy traverse, and Saturn outlook of the same generationDownstream part # Bosch 16089In today’s interconnected world, telephone area codes play a crucial role in ensuring efficient communication. If you’ve come across the area code 01526 and are curious about its l...So, what does the code P0430 mean? This error code is sent when your downstream oxygen sensor on bank two notices an irregularity in your catalytic converter’s …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. ... (Bank 2) Symptoms: Check engine light: Common Causes: Bad catalytic converter, O2 sensors: Breakdown Risk? Rarely (it’s an emissions code) Repair Cost (Parts) $250 …As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase. When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed. P0430 Dodge Code - Catalyst Efficiency Bank 2 OBD2 Diagnostic Trouble Code P0430 means that the sensor in the catalytic converter located in bank 2 has detected the catalytic converter’s efficiency below the threshold. A catalytic converter’s job is to burn up the remaining raw fuel after the combustion process and to eliminate or reduce harmful emissions. Bank 2. Bank 2 is the side of your Grand Cherokee’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your vehicle’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.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. ... (Bank 2) Symptoms: Check engine light: Common Causes: Bad catalytic converter, O2 sensors: Breakdown Risk? Rarely (it’s an emissions code) Repair Cost (Parts) $250 …P0430 OBDII Code Defined. P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here’s the technical definition for your Toyota Tundra: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Tundra’s exhaust contains hydrocarbons, carbon monoxide, and other harmful ...Feb 28, 2019 ... Hello. I have a 2010 Acacia SLT that recently threw a P0430 code for catalytic converter bank 2. I have had that code pop up once before, ...A code P0430 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 There is an exhaust leak. Solutions First, inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2.Oct 14, 2016 ... P0430 would be for the o2 sensor before the CAT (driver side). For that one I had to remove the front tire. Now, if you have long arms and your ...Hey guys! I’ll be replacing the front cat on my Accord due to me having a P0430 CEL. There isn’t a video on Youtube currently on how to replace it so I decid...Nov 21, 2022 · How to fix a Toyota P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2) Link to Cataclean on Amazon: https://amzn.to/3TSI6xWPossible Causes of a ... Bank 1 is on the side with cylinder 1. Bank 2 is the side with cylinder 2. Most commonly, Bank 1 is towards the front of the car if it has a transverse engine. The easiest way to discover the right cylinder bank is to check your car’s repair manual. You can also try to find any stamps on the cylinder block or head for any cylinder numbers.So, I took the vehicle to several places, all of which ran an OBD II scan, which came back with a P0430 code. According to a poster here, this code means "TW Catalyst SYS-B2" Here is what each place said: 1. Advanced Auto - the Bank 2 oxygen sensor is bad. $100.44 for part. 2. Monroe Muffler - the Bank 2 Cat is bad. $1,015 …Bank 2. Bank 2 is the side of your Sierra’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your truck’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.P0430, “Catalyst System Efficiency Below Threshold (Bank 2)” means the issue triggering it is happening in Bank 2 (where your vehicle’s cylinder number 2 is located). According to …Bank 2. Bank 2 is the side of your Colorado’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your truck’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.May 20, 2016 ... I am getting code P0430 on an '08 2.7L. Catalyst System Efficiency Below Threshold (Bank 2) Does anyone know if bank2 is the front or the rear?This code is specifically related to the catalytic converter bank 2, which is located on the passenger side of the engine. See Also: Ford Focus Check Engine Light The P0430 code can be triggered by a variety of issues, such as a failed oxygen sensor, a faulty catalytic converter, or issues with the exhaust system.May 29, 2021 ... 2. Wrong bank. P0430 deals with a catalyst efficiency fault on BANK 2. That would be the drivers side bank in this application. If you replaced ...In today’s interconnected world, telephone area codes play a crucial role in ensuring efficient communication. If you’ve come across the area code 01526 and are curious about its l...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). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases, the Three-way Catalyst ...How to repair P0430 Toyota code Catalyst System Efficiency Below Threshold Bank 2. The Engine Control Module (ECM) uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The ... If the P0430 code is combined with other codes, try fixing the other codes first. ⚠ Check if …How to repair P0430 GMC code Catalyst System Low Efficiency Bank 2. ... As the code description implies the P0430 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (it is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes …Where is the bank 2 sensor 2 located? Bank 2 Sensor 2 Location A vehicle’s (bank 2, sensor 2) O2 sensor will be located behind or downstream of the catalytic converter on the bank which corresponds to the engine’s second cylinder. Can bad spark plugs cause a P0430 code? Yes, a bad spark plug can cause the P0430 code.Bank 2. Bank 2 is the side of your Commander’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your vehicle’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.Aug 20, 2020 · What is the Cost to Diagnose the Code? Labor: 1.0. To diagnose the P0430 Dodge 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 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. ... (Bank 2) Symptoms: Check engine light: Common Causes: Bad catalytic converter, O2 sensors: Breakdown Risk? Rarely (it’s an emissions code) Repair Cost (Parts) $250 …As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase. When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed. P0430 Nissan Code - Catalyst System Efficiency Below Threshold Bank 2=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code HONDA P0430 Saving Repai...Jan 27, 2021 ... A small leak in the exhaust system can cause this error code. The flex pipe could be problem and might only leak when under load [engine twising ...P0430 OBDII Code Defined. P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here’s the technical definition for your Ford F150: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your F150’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses.Bank 2. Bank 2 is the side of your Charger’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your car’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.P0430 Code. I have a 2018 F-150 STX and am the original owner. It has 34K miles and the check engine light came on yesterday. I checked and the code is P0430. A couple of months ago, my mileage dropped off about 1~2 mpg. Last month driving at speed occasionally the engine seems to slightly hesitate a few times them return to normal driving.Mar 12, 2020 ... P0430 indicates that the main three way catalytic converter on bank 2 conversion level is too low. Clear the code, if it returns, you need a new ...Repair Information for P0430 Nissan code. Learn what Catalyst System Efficiency Below Threshold Bank 2 means, location and how to repair? The Engine …Nuke. 87 posts · Joined 2017. #6 · Nov 13, 2017. For the typical V8, yes. But for the 3.5L, and most american V6's AFAIK, it will be the passenger side. Number 1 in any V-type engine is supposed to be the most forward of the cylinders (with front being closest to radiator and back being closest to firewall). I don't know why it is, but for ...Have you ever received a call from an unfamiliar area code and wondered where it originated? If you’ve recently come across the area code 844, you’re not alone in your curiosity. I...Bank 2. Bank 2 is the side of your Acadia’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your vehicle’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.937 posts · Joined 2012. #2 · May 7, 2014 (Edited) Bank 1 is passenger side, Bank 2 is driver. P0430 is a Bank 2, 3 way catalyst DTC code: Three way catalyst function. (Bank2) P0430 80H 01H O2 storage index. P0430 82H 01H Switching time lag engine exhaust index. value. Technical Description. Catalyst System Efficiency Below Threshold (Bank 2) What does t
Sep 15, 2011 ... P0420 is for the right (passenger's side) primary cat. Here are the parts I ordered. You'll have to look up which side is which, as I don't ...The P0430 code is a diagnostic trouble code (DTC) that may appear on the vehicle’s onboard diagnostic (OBD-II) system. It specifically relates to the catalyst system’s efficiency, specifically in Bank 2 of the engine. Bank 2 typically refers to the side of the engine that does not contain the number one cylinder.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.Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. 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. Code P0430 2001 Ford Escape XLT V6. Code P0430. I know this code refers to the converter on bank 2. My question is the engine runs great even when the engine light comes on. I had an issue with cold start rough idle, but now it's fine. There is no power loss issue, no acceleration issue, no stalling issue. It ... May 30, 2020 · As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase. When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed. P0430 Infiniti Code - Catalyst System Efficiency Below Threshold Bank 2 Syncrony Bank is a financial services company that provides a variety of banking products and services to its customers. With locations all over the United States, it can be diffic...The P0430 code in a Honda Odyssey refers to a potential issue with the vehicle’s catalytic converter system. When this code appears, it indicates that there is a malfunction or inefficiency in the catalytic converter in Bank 2 of the engine. This can lead to increased emissions and reduced engine performance.Here’s a good P0430 diagnostic order for the Nissan Frontier: 1. Check for Other Codes. The first thing you want to do when trying to fix P0430 in the Frontier is to verify there aren’t any other trouble codes. Three types of codes can give clues as to what’s going on with your truck. Misfire Codes. When the Powertrain control module ( PCM) throws a P0430 fault code, it means the bank 2 downstream O2 sensor has detected that the catalytic converter efficiency is below the manufacturers’ predetermined threshold. The P0430 diagnostic trouble code is generic, meaning it can appear on any vehicle type. Here's some info from when the code came up, I was driving at the time, 48mph at 1368 RPM STFT BANK 1 - 1.6% LTFT BANK 1 - -14.8% STFT BANK 2 - 1.6% LTFT BANK 2 - -10.6% Timing advance cylinder 1 - 6.5 degrees O2 bank 1 sensor 2 STFT - 99.2% O2 bank 2 sensor 2 STFT - 99.2% Bank 1 sensor 2 voltage - 0.115V Bank 2 sensor 2 voltage - 0.845VSep 24, 2014 ... I have personally had cars that triggered the P0420/P0430 codes every so often and only on the highway, I had certain locations that I could ...CEL Code: P0430 Catalyst System Efficiency Below Threshold Bank 2 Step 1. Check 02 Sensors. How To Check 02 SensorCan someone estimate how much a mechanic would charge to check the sensors? If 02 sensor is malfunctioning, replace for roughly $100 each (OEM) or search for universal aftermarket ones. If sensor is working properly, proceed to step ...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. ... (Bank 2) Symptoms: Check engine light: Common Causes: Bad catalytic converter, O2 sensors: Breakdown Risk? Rarely (it’s an emissions code) Repair Cost (Parts) $250 …This repair should also apply to the Buick enclave, Chevy traverse, and Saturn outlook of the same generationDownstream part # Bosch 16089It 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. ... (Bank 2) Symptoms: Check engine light: Common Causes: Bad catalytic converter, O2 sensors: Breakdown Risk? Rarely (it’s an emissions code) Repair Cost (Parts) $250 …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. ... (Bank 2) Symptoms: Check engine light: Common Causes: Bad catalytic converter, O2 sensors: Breakdown Risk? Rarely (it’s an emissions code) Repair Cost (Parts) $250 …8913 posts · Joined 2007. #2 · Sep 14, 2017. Replacing the downstream O2 sensors will NEVER fix a 420/430. Failed sensors will store other codes. Possible the upstream sensor is lazy or contaminated causing chemical shift, but the most likely cause is a failing cat. If the cat isnt broken up and causing excessive back pressure, the easy fix ...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...Bank 2. Bank 2 is the side of your Caravan’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your van’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.In today’s interconnected world, it has become increasingly important to stay connected with friends, family, and business associates across different geographic locations. One of ...As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase. When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed. P0430 Honda Code - Catalyst System Efficiency Below Threshold Bank 2So, I'm a bit confused. You say P0430 which is a catalyst below efficiency code on bank 2. Do you have another code for an O2 sensor? Bank 2 Sensor 1 (upstream) is an air flow ratio sensor (wideband O2.) It sounds like the spark plug tube seal is leaking oil into the spark plug tube.Bank 2. Bank 2 is the side of your Grand Cherokee’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your vehicle’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.Down-stream, or post-cat sensors will be sensor 2. The bank# will tell you which side of the engine the sensor is on, with bank1 usually being ...The misfire code should be for cylinder 2, 4, 6, or 8 (if applicable). Engine Temp Sensor Codes. If your Silverado’s PCM doesn’t know the engine temperature, it’ll keep the fuel mixture rich. When this happens, the exhaust the O2 sensors see will be out of range, and it could throw P0430.Bank 2. Bank 2 is the side of your MDX’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your vehicle’s engine and model year can quickly confirm that. The bank 1 version of this code is P0420.Bank 2. Bank 2 is the side of your MKZ’s engine with the second cylinder. Typically, the first cylinder is closer to the front of the engine. A quick Google search for your car’s engine and model year can quickly confirm that. The bank 1 …There are 4 O2's two on each side upstream and downstream. HF1 DTCs P0420, P0421, P0430 or P0431: CHECK FOR MISFIRE DETECTION MONITOR DTCS. Diagnostic Trouble Codes (DTC) P0420 and P0421 indicate that bank 1 catalyst system efficiency is below the acceptable threshold. Diagnostic Trouble Codes (DTC) P0430 and P0431 indicate that …A code P0430 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 • There is an exhaust leak Possible Solutions First, inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2.The P0430 code indicates that the powertrain control module (PCM) detects the poor efficiency of the catalytic converter at Bank 2. Basically, Bank 1 and Bank 2 are the two sides of the engine. Bank 1 represents the side of the car’s engine containing cylinder No. 1, while Bank 2 represents the opposite side of Bank 1.Definition and meaning of a Honda P0430: Catalyst System Efficiency Below Threshold Bank 2 Diagnostic Trouble Code as well as fixes. Causes of a Honda P0430 ...P0430, “Catalyst System Efficiency Below Threshold (Bank 2)” means the issue triggering it is happening in Bank 2 (where your vehicle’s cylinder number 2 is located). According to our mechanic, …As more and more people become aware of the potential drawbacks of using gasoline with ethanol, the demand for ethanol-free gas has been on the rise. Ethanol-free gas offers severa...Here is an updated video with more information. https://www.youtube.com/watch?v=e1R843nLM0sHow to fix a Dodge with a P0430 code, "Catalyst System Efficiency ...The P0430 fault code is a common one, and it stands for catalyst system efficiency below the threshold (Bank 2). This means that the catalytic converter on bank 2 exhaust manifold isn’t functioning efficiently and is sending excess pollution into the environment.Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. 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.Dec 28, 2016 · A code P0430 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; There is an exhaust leak; Possible Solutions First, inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2. I do not want to do the 'trick' of tricking the system with an 02 spacer. P0430 Nissan