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P0430: Catalyst System Efficiency .

P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Camry’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.12 posts · Joined 2023. #1 · Apr 8, 2024. P0430 Catalyst System Efficiency Below Threshold (Bank 2).". Second time I've thrown this code and deleted it. 2021 Trackhawk stock besides afe intake and pedal commander. issue occurred again today after remote starting the truck in my garage for 20 minutes with all windows and doors closed in my ...Sep 14, 2018 · P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Trailblazer’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.How To Fix a Nissan P0420 engine code: Catalyst System Efficiency Below Threshold Bank 1Link to Cataclean on Amazon: https://amzn.to/3TSI6xWHow To Test Oxyge...P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here's the technical definition for your Nissan Altima: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Altima's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses.P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Suburban's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.Jun 26, 2023 · Spacing the O2 sensor further out of the exhaust stream reduces the ability of the sensor to read the exhaust so the response slows down. If it slows down enough, it looks like the cat is doing its job and the P0420/430 code might clear. The problem is that if a sensor is failing, it looks like everything is fine.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 …The only difference between an P0430 and P0420 is the bank that has the Catalyst System Efficiency Below Threshold. One code is for bank 1 and one code is for bank 2 but I cannot remember what code is for what bank. ... Code came up P0430. Checked for leaks on bank 2 (right side) and found none. Only 30,000 miles so hopefully not the cat. The ...P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here's the technical definition for your Chevy Traverse: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Traverse's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses.P0430 Technical Definition: P0430 Catalyst System Efficiency Below Threshold (Bank 2) P0430 Meaning: The catalyst system is not working properly. Most common cause: Faulty catalytic converter. Risks for the engine/driver: MEDIUM It should be safe to drive the car, but you should get it checked out by a mechanic ASAP. Emissions …P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Titan's engine with the first 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 2 version of this code is P0430. Nissan ...P0430 Catalyst System Efficiency Below Threshold (Bank 2) The ECM compares the waveform of the oxygen sensor located before the. catalyst with the waveform of the oxygen sensor located after the catalyst. to determine whether or not catalyst performance has deteriorated. Air-fuel.P0430 Ford Catalyst System Efficiency Below Threshold Bank 2. As the code description implies the P0430 Ford 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 ...P0430 Technical Definition: P0430 Catalyst System Efficiency Below Threshold (Bank 2) P0430 Meaning: The catalyst system is not working properly. Most common cause: Faulty catalytic converter. Risks for the engine/driver: MEDIUM It should be safe to drive the car, but you should get it checked out by a mechanic ASAP. Emissions severity: HIGH.P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Pathfinder's engine with the first cylinder. Typically, the first cylinder is closer to the front of the engine. ... The bank 2 version of this code is P0430. Nissan Pathfinder P0420 Code Symptoms.P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Tahoe’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.Vehicle is 2004 LX470 with 260,000 KM which is like 150,000 MIles i think. Vehicle was fine and then got this check engine light with all VSC traction disabled. Got it checked out (Autozone) and got the P0430 Code, Catalyst system efficiency below threshold (Bank 2). I have a 2000 km drive planned in 3 weeks so wanted to make sure LX is in good ...P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your G6’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Wrangler's engine with the first 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 2 version of this code is P0430. Jeep ...P0430 - Catalyst Efficiency Below Threshold ... The code goes up when the difference between the two does not match specifications. 430 looks to be the front bank (2). As you said exhaust leaks is a possibility, bad O2 sensor, or cat. ... The middle item in the exhaust system is the muffler and the round cylindrical item at the back of the ...P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your SRX's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.In today’s fast-paced business environment, companies need efficient and reliable banking solutions to keep up with their financial needs. Straight2BankBotswana is a cutting-edge p...MIL Comes On with DTC P0430 (Front Bank Catalyst System Efficiency Below Threshold [Bank 2]) Supersedes 17-034, dated October 12, 2017; to revise the information highlighted in yellow Replaces 15-053, MIL Comes On with DTC P0430 Replaces 17-019, MIL Comes On with DTC P0430.P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here's the technical definition for your GMC Yukon: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Yukon's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses.P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Enclave’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of …P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Commander's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.Jan 28, 2022 · 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.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 2011 Nissan Pathfinder Code - Catalyst System Efficiency Below Threshold Bank 2Sep 14, 2015 · 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 ...P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your F250's engine with the first 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 2 version of this code is P0430. Ford F250 ...P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here's the technical definition for your GMC Yukon: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Yukon's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses.Code P0430 2006 Toyota Camry Description. The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The first sensor, the Air-Fuel Ratio (A/F) sensor, sends pre-catalyst information to the ECM. The second sensor, the Heated Oxygen (HO2) sensor, sends post-catalyst information to the ECM.Connected to OBDII and shows a P0430 catalyst System Efficiency Below Threshold bank 2 (driver side). So I replaced downstream O2 sensor and cleared the code. Unfortunately for me it came back 2 days later. Cleared again and came back 1 day later. 2018 expedition max has about 90,000 miles on it. Seems like an early failure for a catalytic ...589 posts · Joined 2013. #2 · Oct 29, 2013 (Edited) P0430 Front Bank Catalyst System Efficiency Below Threshold (Bank 2) The above is an Acura code analysis.. I need to check and see if they're consistant codes through the Honda line. I also see a post from a Honda / Acura Technician who observed that changing the O2 Sensor usually fixes the ...P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Genesis's engine with the first 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 2 version of this code is P0430. Hyundai ...This code points to a failing Catalytic Converter for Bank2 (driver's side). The Oxygen Sensors measure the amount of emissions in the exhaust going into, and then out of the converter. When they see that the converter is not "cleaning" the exhaust enough to meet specs, the Converter is deemed "below threshold" and the P0430 is set.P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Wrangler's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Altima’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of …P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Ranger's engine with the first 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 2 version of this code is P0430. Ford ... Nov 23, 2009 · P0430 - Catalyst System; Bank 2: EfP0430 is generic (has the same meaning for all vehicles Then set torque to display the O2 sensor outputs. You sh

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P0430 is an OBD II diagnostic trouble code (DTC) defined as “Catalyst System Efficiency Below Threshold Bank 2.”. A DTC P0430 means that the catalytic converter on the Bank 2 exhaust manifold isn’t functioning as it should. As a result, the failing converter can’t break down harmful pollutants in the exhaust, which leads to increased ...Catalyst system efficiency below threshold bank 2. ... Code P0430 I got this code a couple of weeks ago. I changed all 4 O2 sensors and cleared the code. It just popped up again. I can't afford to go to a dealership, as I'm a single mom. Any insight would be greatly appreciated. ... #2 · May 13, 2024. I have the 17 exl also and had the ...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 2011 Nissan Pathfinder Code - Catalyst System Efficiency Below Threshold Bank 2P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here's the technical definition for your Ford Edge: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Edge's exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses.P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Explorer’s engine with the first 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 2 version of this code is P0430. Ford ...As a business owner, managing your finances efficiently is crucial to the success of your company. One way to streamline your business banking experience is by utilizing the ATB On...In today’s fast-paced world, staying connected and informed is more important than ever. With the rise of technology, online banking has become a convenient and efficient way to ma...Underground banking systems are financial networks that operate outside of normal banking channels to transfer money internationally, avoiding the fees and regulations of conventio...In today’s fast-paced world, staying connected and informed is more important than ever. With the rise of technology, online banking has become a convenient and efficient way to ma...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 ...ISSUE: Some 1997 Crown Victoria, Grand Marquis and Town Car vehicles may exhibit a malfunction indicator lamp (MIL) on with diagnostic trouble code (s) (DTC'S) P0420 (Catalyst System Efficiency Below Threshold - Bank 1) and/or P0430 (Catalyst System Efficiency Below Threshold - Bank 2).What does this mean? OBD2 Code P0430 Infiniti definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.You are close in your understanding of what the P0430 code means. In reality it means the bank 2 (front) catalytic converter isn't cleaning up the exhaust as much as the ECM wants it to. The converter isn't getting any more (or less) fouled now than what it was. In the majority of cases I have observed the converter is flowing just fine and isn ...Then set torque to display the O2 sensor outputs. You should then be able to see the levels cycling. Next step is to swap the offending sensors, (downstream usually), left/right & see if the fault stays on the one side, (bad cat), or swaps over, (bad sensor, much cheaper). I had this & it was a bad cat in the end.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 ...P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Altima’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of …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 ...P0430 code Chevy implies that the catalyst system efficiency is below the Bank 2 threshold. So, the catalytic converter on Bank 2’s exhaust manifold is inefficient and emits excessive environmental pollution. Can bad spark plugs cause a P0430 code? Yes. Having defective spark plugs can cause the code P0430 to activate.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).P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your 4Runner’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.Restore your catalyst system and learn how do I fix trouble code P0430? This diagnostic trouble deals with your emissions system and alerts you to a potential issue with a bank two oxygen sensor. Learn how to diagnose, troubleshoot and solve this issue today.I had a CEL, using my BlueDriver Bluetooth OBDII Scanner, I pulled Code P0420 - "Catalyst System Efficiency Below Threshold Bank 1" After reading a bunch of posts on this forum, the first suggestion seems to be to replace all 4 oxygen sensors even though the problem is likely the Catalytic Converter. My questions are below: 1.2001 Infiniti I30T - only code that shows is P0430 which is catalyst system efficiency below threshold - bank 2 BUT, - Answered by a verified Nissan Mechanic. We use cookies to give you the best possible experience on our website. ... The code is P0430 catalyst efficiency below threshold.Created by Congress in 1932, the Federal Home Loan Bank System (FHLB) is a lending system for financial institutions. Created by Congress in 1932, the Federal Home Loan Bank System...July 7, 2019. #1. 2011 Explorer, 108k. The check engine light recently came on my Explorer, code P0430 - Catalyst System Efficiency Below Threshold (Bank 2). After some online the research the easy signs pointed to the downstream O2 sensor on bank two. I replaced both downstream sensors and reset the codes. It threw the code again after a …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.P0430 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here’s the technical definition for your Chevy Captiva: P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Captiva’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses.P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your STS’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of …P0430: Catalyst System Efficiency Below ThreWhat Does Code P0430 Mean? P0430 definit

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P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Aura’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Explorer’s engine with the first 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 2 version of this code is P0430. Ford ...Sep 15, 2018 · P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Expedition’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of these pollutants out.In today’s fast-paced world, staying connected and informed is more important than ever. With the rise of technology, online banking has become a convenient and efficient way to ma...P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Expedition's engine with the first cylinder. Typically, the first cylinder is closer to the front of the engine. ... The bank 2 version of this code is P0430. Ford Expedition P0420 Code Symptoms.Code P0430 Catalyst effieciency low Bank 2. Thread starter chriskramerjr81; Start date September 1, 2010; C. chriskramerjr81 Member. Joined August 17, 2010 Messages 14 Reaction score 0 ... P0430 Confirmed Catalyst System Efficiency Below Threshold Bank 2: Service Engine Soon. Pavesa; April 25, 2023; Stock 2002 - 2005 Explorers; Replies 4 Views ...Sep 13, 2018 · Ford F150 P0420 Code Symptoms. The P0420 code in a Ford F150 will often be thrown if one of your truck’s oxygen sensors is not functioning correctly. There are rarely drivability issues associated with P0420. For most people, the first sign that anything is wrong is the service engine soon light coming on.P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your MDX’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. Catalyst system efficiency measures how many chemicals are removed from the exhaust system. A modern catalytic converter should pull over 95% of …P0430: Catalyst System Efficiency Below Threshold (Bank 2) Catalyst System Efficiency. Your Yukon’s exhaust contains hydrocarbons, carbon monoxide, …P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... Bank one is the side of your Pathfinder's engine with the first cylinder. Typically, the first cylinder is closer to the front of the engine. ... The bank 2 version of this code is P0430. Nissan Pathfinder P0420 Code Symptoms.Anybody get the P0430 code? "Catalyst Efficiency Below Threshold Bank 2". I've gotten it about 5 times now. Always clears and goes about week or so. No problem driving or engine issue. Have to get it in. I've been to the dealer with my other issue about 8 times now. A couple of my preset AM stations won't stay preset.P0420: Catalyst System Efficiency Below Threshold: Symptoms: Usually just the check engine light: ... P0420: Catalyst System Efficiency Below Threshold (Bank 1) ... The bank 2 version of this code is P0430. Subaru Outback P0420 Code Symptoms.In recent years, the concept of “Merdeka Belajar” has gained significant attention in Indonesia’s education system. At the heart of Merdeka Belajar lies the belief that students sh...P0420 is a OBDII trouble code. The code technically stands for: Catalyst System Efficiency Below Threshold. Your GMC has at least two oxygen sensors, one before and after the catalytic converter. Among the many jobs that oxygen sensors have is they have to measure the emissions levels coming in and out of the converter.589 posts · Joined 2013. #2 · Oct 29, 2013 (Edited) P0430 Front Bank Catalyst System Efficiency Below Threshold (Bank 2) The above is an Acura code analysis.. I need to check and see if they're consistant codes through the Honda line. I also see a post from a Honda / Acura Technician who observed that changing the O2 Sensor usually fixes the ...P0430 Definition: Catalyst System Efficiency Below Threshold (Bank 2) During the combustion cycle of your vehicle, the catalytic converter converts harmful pollutants into less harmful gases by …This fault code (P0430 Catalyst System Efficiency Below Threshold Bank 2) has been coming up on my 2004 GS300 for nearly 6 Months / 8 thousand miles. I'm getting consistently good mpg (27-30) and the car went through its MOT after the code first came up, obviously passing its emissions part of the test. Sometimes I can go 1500 miles between it ...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 2002 Nissan Sentra Code - Catalyst System Efficiency Below Threshold Bank 2Fix code P0430 Code P0430 Catalyst System Efficiency Below Threshold (Bank 2) NOTE: Codes P0420 and code P0430 are similar. I wrote a much more detailed explanation of how an emission system works and what causes these codes. Read this post and then refer to this more detailed post. Bank 1 is passenger side, Bank 2 is driver.