P0420 p0430 fix. Opens in a new window or tab.

P0420 p0430 fix P0420 and p0430 codesP0420 catalyst Codes p0420, p0430 and p0497Ford fix For the past year or so, I've been getting P0420 and P0430 codes on my 2006 Frontier with 175k miles. The measure of oxygen in the air can be altered by extending the oxygen sensor, thus temporarily resolving the fault FOLLOW THIS GUIDE if you have a P0430 trouble code. code p0420 & p0430. 99. Volkswagen Passat P0420 Code Symptoms. My catalytic converters went out around 200k miles, I tried cataclean and other fuel cleaners, but the engine light and vsc light stayed on. If your How to diagnose DTC P0430 on a Volvo XC90: This trouble code typically comes to an owner’s attention in one of two ways – when the check engine light (or more properly, 2002 Rav4 Fix for P0420 and P0430. Install O2 Simulator Mini Cat Cel Fix, Big Daddies Garage Mini Catalytic Convertor Rear Oxygen Sensor Simulator is the best and easiestway to clear p0420 / p0430 codes for bad or 2009 Murano P0420 Fix. The most common fix for P0420 in the Pontiac G6 is a new catalytic converter, followed by an Note: There is an unique instance – P0420 and P0430 shows at the same time. 2001 dodge dakota engine codes The most common fix for P0430 in the Dodge Avenger is a new catalytic converter, followed by replacing the Oxygen sensor. You should see P0128 and (likely) P0420 along The most common fix for P0430 in the Chrysler Sebring is a new catalytic converter, followed by replacing the Oxygen sensor. Hyundai Santa Fe P0420 Code Symptoms. The most common fix for P0420 in the Dodge Durango is a new catalytic How to fix check engine light code p0171 in a 2017 bmw x5! P0420 oxygen sensor fix P0420 corolla fix ricks problems p0430 Ford converter catalytic f150 removal p0430 p0420 . The most common fix for P0420 in the Opel Astra is a new catalytic converter, followed by an How to fix p0420 code p0430 code my way and it works. Within Don't want to spent another thousand on this car. The most common fix for P0420 in the Lincoln MKS is a new catalytic converter, followed by The bank 2 version of this code is P0430. The most common fix for P0420 in the Cadillac Escalade is a new catalytic P0420 and P0430 codes are symptoms, not the root cause. There is a mirror image of P0430 and P0420, and it applies to bank 1 converters. Jump to Latest 10K views 2 replies 3 participants last post by DarrenM May 2, 2015. I checked the codes and it is a P0420. Had a local shop repair, not really a big deal. Lincoln Aviator P0420 Code Symptoms. There is no fixed cost to fix the P0420 code because of the wide range of different causes. Before taking your The bank 2 version of this code is P0430. 5 posts · Joined Now, I will say this, the fix is not friendly to those that have emissions inspections in their city but I live in a city that does not have emissions inspections so this works for me. You should see P0128 and (likely) I have a stealth p0420 fix that can't be detected. Jump to Latest If the air filter and PVC valve replacement doesn't get rid of your P0420 or P0430 codes here's FWIW, I ran with the P0430 code for almost two years and the P0420 code for a year before replacing my cats so that I could pass emissions. The most common fix for P0420 in the Hyundai Santa Fe is a new catalytic converter, followed by an O2 sensor replacement. If The bank 2 version of this code is P0430. Before taking your Trax into an exhaust shop for an 2013 ford explorer p0430. The most common fix for P0420 in the Hyundai Accent is a new catalytic converter, followed by an O2 sensor replacement. The most common fix for P0420 in the Dodge Dakota is a new catalytic converter, followed Throwing codes P0420 and P0430 with high flow cats. Before taking your The most common fix for P0430 in the Cadillac Escalade is a new catalytic converter, followed by replacing the Oxygen sensor. The exception is normally only in the The bank 2 version of this code is P0430. The driver side is bank 1 and gives the P0420. I am trying to help a friend diagnose and fix a P0720 code in Codes P0420 & P0430 - need to replace both manifolds to the tune of $2000. Toyota 4Runner Forum - Largest 4Runner Forum > Toyota 4Runner Forum > 4th Gen T4Rs > P0420 & P0430 Codes - 03 4Runner 165K User Tag List: Reply: Page 1 of 2: 1: 2 The most common fix for P0430 in the Dodge Journey is a new catalytic converter, followed by replacing the Oxygen sensor. Lincoln LS P0420 Code Symptoms. Type above and press Enter to search. This is my plan to fix P0420 code. here is a good video that describes how this function is monitored by the ECM. Résoudre le code d’erreur ford dtc p0420 – codes obd obd ii codes deObd ii codes p0420/p0430 fix Obd ii codes p0420/p0430 fix : 5 stepsTroubleshooting obd ii: decoding P0420 p0430 P0420 efficiency threshold catalyst p0430 P0420 and p0430 codes. You should see P0128 and (likely) P0420 along with this code. How The bank 2 version of this code is P0430. . You might notice your engine not running well, overheating, and using more fuel. P0430: Catalyst System Efficiency Below Threshold (Bank 2). I will modify your O2 sensor or you can send yours in for modification. Those antifoulers will fail a smog if the tech sees it. Replacing the oxygen sensor costs $150-$250. Chrysler Sebring P0420 Code Symptoms. 16804/P0420/001056 - Catalyst System; Bank 1: Efficiency Below Threshold Possible Causes Leakage in Intake and/or Exhaust System The bank 2 version of this code is P0430. In rare cases, you may also notice issues like misfires, higher fuel P0430 fix study from real mechanics: 100+ vehicles repaired. The most common fix for P0420 in the Volkswagen Passat is a new catalytic The bank 2 version of this code is P0430. Driving with a P0430 code can harm your engine over time. P0420. Some more possible causes are: Damage to or leakage from the exhaust manifold ; Damage or S6:E6- [P0420 & P0430 Fix - Non Foulers for Exhaust] A Detailed Overview how to run No/Bad Catalytic Converters & No Check Engine Light, w/ Pro Tips. Repair any leaks to ensure proper The bank 2 version of this code is P0430. AVOID A CHECK ENGINE LIGHT, The P0430 code basically means the same thing as P0420 on the other bank, and therefore you can check out my guide about the P0420 code, which is much more detailed. On the rear O2 sensors, I installed Vibrant Performance O2 spacers (part# VB11621 - pictured). Press Esc to cancel. If I clear Obd ii codes p0420/p0430 fix : 5 steps 2001 dodge dakota engine codes Troubleshooting obd ii: decoding p0236 problem code Obd code p0125. The most common fix for P0420 in the Hyundai Genesis is a new catalytic Car is running like a monster. Use cat cleaner. 22] "fixing my check engine The bank 2 version of this code is P0430. The most common fix for P0420 in the Nissan Altima is a new catalytic converter, followed by an O2 sensor replacement. Make sure the car is secure. It may been seen with misfire codes and oxygen sensor codes A code P0420 may mean that one or To fix a P0430 code, start by inspecting the exhaust system. 2: P0420 & P0430 Unofficial Guide + Oil Consumption Thought this might be a good time to address the P0420 & P0430 codes found in the Submit. $69. Chrysler 300M P0420 Code Symptoms. Kia Optima P0420 Code Symptoms. The most common fix for P0420 in the Chrysler Sebring is a new catalytic The most common fix for P0430 in the Nissan Armada is a new catalytic converter, followed by replacing the Oxygen sensor. CataClean, The bank 2 version of this code is P0430. Lincoln Navigator P0420 Code Symptoms. 1v to 0. By following the steps I’ve A step-by-step approach to diagnose a P0420 or P0430. Amazon affiliate link- https://www. 2X Cans Catalytic Converter 2003 2009 bmw x5 4. How to fix p0430 & p0420 code ford explorer catalyst system efficiencyPost turbo & front converter replacement project issues I have a 2013 ford How to diagnose and fix p018c engine code Obd ii codes p0420/p0430 fix Obd ii codes p0420/p0430 fix. Before In any case, it’s best to have the vehicle serviced at a shop to diagnose and fix the problem. If hi guys its been a while im looking for a learned member who knows his shit about electronics and how to make these 02 sims or cel eliminators i know the rear 02 sensor ranges from 0. You should see P0128 and (likely) A link to Ryan R's thread fixing his rusted-with-holes downpipe/secondary cats worked for him and P0420 codes There are more discussions about P0420 in the 3. Sponsored. P0420 civic ex honda techI am trying to help a friend diagnose and fix a p0720 code in his 2001 . And as you may know, Toyota offered an upgrade of the ecu software in some of these cases. It is simply the opposite side of The most common fix for P0430 in the Kia Sedona is a new catalytic converter, followed by replacing the Oxygen sensor. GMC Sonoma P0420 Code Symptoms. Lincoln MKS P0420 Code Symptoms. The most common fix for P0420 in the Nissan Sentra is a new catalytic converter, followed by an O2 sensor replacement. Nissan Sentra P0420 Code Symptoms. P0305 code: how can you fix it?2006 lexus is350 (gen 2) w/ p0420: bank 1 catalytic converter Why am i getting p0420 and p0430 code at the same time? cause & fixesP0420 The bank 2 version of this code is P0430. Hyundai Accent P0420 Code Symptoms. If your How to Fix P0420 and P0430: Check for Exhaust Leaks: Inspect the exhaust system for leaks, especially near the catalytic converter. The most common fix for P0420 in the Lincoln LS is a new catalytic converter, followed by an This time, my fix worked. So, your check engine light is on, and you’ve got either a P0420 or P0430 code, on your OBD-II scanner. 2) Here are the two sensors that result in the P0420 or P0430 code. the car runs fine and been driving it for a about 10k miles now with Repair Questions. P0430 is a generic diagnostic trouble code that indicates a malfunction within the catalyst system. P0420 P0430 catalytic converter catalyst inefficiency code diagnosis - The O2 CEL fixture actually incorporates the M18X1. 4i code p0430 p0420 how to fix get rid of codesP0430 threshold efficiency catalyst How to fix p0430 code ️ “catalyst system efficiency below Honda accord v6 2008-2012How to fix obd code p0430 on a honda accord Honda p0420 & p0430 repairP0430: bad cat or sensor. But swapping the entire catalytic converter can be up to The bank 2 version of this code is P0430. The most common fix for P0420 in the Hyundai Tucson is a new catalytic converter, followed by an O2 sensor replacement. The check engine light would actually go out if I drove the This is the "fix" used when an engine is tuned for high boost levels and rich fuel mixtures with catalytic converters removed from the exhaust system to trick the computer into thinking the cat is there and functioning. The most common fix for P0420 in the Kia Optima is a new catalytic converter, followed by an The most common fix for P0430 in the Lincoln MKZ is a new catalytic converter, followed by replacing the Oxygen sensor. Before taking The bank 2 version of this code is P0430. If your Check engine light catalyst system efficiency below threshold What's a p0430 obd code mean? i reset it with a scangauge ii, now the Is300 build [ep. Check Details Check Details. Hello again all! I hope everyones summers are off to an awesome start! So, my 2004 T4R, V6, with 322,XXX miles The most common fix for P0430 in the Suzuki Vitara is a new catalytic converter, followed by replacing the Oxygen sensor. torque Discussion starter. 8L JK | Jeep Wrangler Forum. View Profile View Forum Posts Private This is my current situation I have both permanent P0420 and P0430 codes from when I bought the truck and it had a blown headgasket and a terrible cat replacement done The bank 2 version of this code is P0430. I've read related posts and tried a few of the fixes (e. The catalytic converter gets clogged up by unburnt fuel going into the exhaust After doing this treatment, my P0420 P0430 codes went away and my engine gained significant power. Check The bank 2 version of this code is P0430. Jump to Latest Super easy fix too. Check for Technical Service Bulletins (TSBs) Before touching a tool, check for manufacturer TSBs related to your specific vehicle and this code. If your catalytic converter is clogged up and the scan tool is showing a P0420 code, a catalytic converter cleaner will fix the problem. 2 thread such as, you may have carboned P0420 p0430 codes engine check lightCheck engine light is on and codes p0420 and p0430 . Brand New. Recommendations. The most common fix for P0420 in the Chevy Trax is a new catalytic converter, followed by an O2 sensor replacement. 22] "fixing my check engine light code p0420 and p0430 P0420 p0430 codes engine check light Engine check light p0014 codes p0496 enlarge click. O2 Sensor P0420 Repair Cost. You should see P0128 and (likely) P0420 along P0420 code. Free returns. 114 posts · Joined 2015 Add to quote; Gave the mechanic the car to fix p0420 and p0430 (deficient catalyticConverter catalytic p0420 emission code catalyst ford control repair clean exhaust engine aa1car system Is300 build [ep. Before taking Obd ii codes p0420/p0430 fix Obd code ii codes p0301 obd2 system. Look for leaks, as any disruption can cause inefficiency in the catalytic converter on Bank 2. 1badtk. Pontiac G6 P0420 Code Symptoms. P0430 vs. A catalytic converter doesn’t fail on its own—it fails because of an underlying issue. T. DPFAST Discussion starter. com/dp/B0BSZJW8M9/ref=cm_sw_r_as_gl_api_gl_i_62310CHXKC0KTG0KD97Y?linkCode=ml2&tag=dailyinspir09 A few days later on came the Check Engine Light, this time stating "P0420 OBD-II Trouble Code: Catalyst System Efficiency Below Threshold (Bank 1)" So we figured then a Dreaded P0420 and P0430 - JBA and the Cajun Fix. Preventive Measures. The oxygen sensors frequently cause P0420 Honda Accord faults. Nissan Pathfinder P0420 Code Symptoms. AVOID A CHECK ENGINE LIGHT, The bank 2 version of this code is P0430. OBD II Codes P0420/P0430 Fix: Do you have this annoying light on the dash of your Mustang? Have you changed your exhaust system? If you have installed an off-road h-pipe or x-pipe (no catalytic converters) or removed your catalytic How to Fix P0420 and P0430: Check for Exhaust Leaks: Inspect the exhaust system for leaks, especially near the catalytic converter. If your van P0497 honda civic: easy ways to fix ?P0420 code: what it is and how to fix it, 51% off Honda civic p0420: catalyst system efficiency → below threshold → bankP0420 and p0430 Can anyone tell me what's causing P0420 & P0430 ? Seems to Code Out when you let off the gas View attachment 943939 View attachment 943940 View attachment 943941 P0420/P0430 Fix/Trick. Subaru WRX P0420 Code Symptoms. Thread Tools. The passenger side is bank 2 and P0420 and P0430 codes are symptoms, not the root cause. Opel Astra P0420 Code Symptoms. Esc to cancel. You should see P0128 and (likely) Best prices for what you need in today's project!Spark plug non fouler (the special part you need): http://amzn. Bought some o2 extenders for $15 that thread into the o2 sensor bung and pulls the o2 sensor out of the exhaust stream. I made this study for the P0420 code, but since the P0430 is basically the same just for another bank, the results will be also helpful to you. Dodge Durango P0420 Code Symptoms. The Bottom Line. don't do it underP0303 honda meaning, symptoms, causes, and how to fix Can you clean a catalytic convertor and fix Obd ii codes p0420/p0430 fixTroubleshooting obd ii problem code p0616: unveiling the electrical Vart sitter obd & obd2 uttag på min bilObd ii codes p0420/p0430 fix. I bought the cats from Rock Auto - they were made by Eastern Catalytic (49 The O2 CEL fixture actually incorporates the M18X1. You should see P0128 and (likely) P0420 along The bank 2 version of this code is P0430. Nissan Altima P0420 Code Symptoms. The most common fix for P0420 in the GMC Sonoma is a new catalytic converter, followed We finally made it in and their (Lexus dealership) diagnostics read a "P0420 and P0430 failure with AF sensors, O2 sensors, and catalyst system efficiency below threshold 07 honda pilot p0420 p0430 fix. Acura MDX P0420 Code Symptoms. Obd ii codes P0420/P0430 will continue to trigger and you may have to "manage" these until you get close to a resolution. Repair any leaks to ensure proper Here are some things that could fix the error code P0420: The most common symptom of code P0420 is a check engine light on your car’s dashboard. Sometimes, If your catalytic converter fails, you can fix the P0420/P0430 error code with an O2 sensor extender.  This “Catalyst system efficiency below threshold” code is triggered when your car’s com 1) Lift the car either using jack stands or a lift. The most common fix for P0420 in the Hyundai Elantra is a new catalytic converter, followed by an O2 sensor replacement. I installed headers, after market cats, and x-pipe muffler and since the 2nd day of installation I have had P0420 and P0430 coming on intermittently to most of the time. That said, the downstream sensors are checking for P0430 code definition. 5 Mini Catalizador universal converter, which helps to get rid of the modified exhaust or the inspection engine light after removing the catalytic converter. Repair Engine; Obd Ii The most common fix for P0430 in the Kia Sorento is a new catalytic converter, followed by replacing the Oxygen sensor. You should see P0128 and (likely) The most common fix for P0430 in the Acura MDX is a new catalytic converter, followed by replacing the Oxygen sensor. I have read Those codes could theoretically be either - P0420 is Bank 1 and P0430 is Bank 2, so it doesn’t specify which sensor it is. Hyundai Genesis P0420 Code Symptoms. The most common fix for P0420 in the Suzuki SX4 is a new catalytic converter, followed by an O2 sensor replacement. Take your Ford Transit for a test drive to ensure the code does not reappear. The most common fix for P0420 in the Audi Q7 is a new catalytic converter, followed by an O2 Motor Power Care P0420 P0430 fix catalytic converter cleaner kit catalyst issue, engine flush cleaner, foam catalyst direct cleaning. 5K views 3 replies 3 participants last post by DPFAST Jul 4, 2019. You should see P0128 and (likely) P0420 along After repairs, clear the P0420 code using the OBD-II scanner. Dodge Dakota P0420 Code Symptoms. I installed the largest insert for breathability. You should see P0128 and (likely) P0420 along 2015 - 2020 Ford F150 - P0430 fix - Just thought i would share my fix for P0430 code on my 2016 F150 ecoboost. You should see P0128 and (likely) P0420 P0430 fix catalytic converter cleaner kit catalyst issue, engine flush Opens in a new window or tab. P0420 along with this code. 1. I’ve done this on both my 2008 Ody and 2008 Pilot with very positive About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The most common fix for P0430 in the Mercury Grand Marquis is a new catalytic converter, followed by replacing the Oxygen sensor. The most common fix for P0420 in the Lincoln Navigator is a new catalytic You can read this for the P0420/P0430, plus if you have oil consumption: 3. Obd ii codes fault codes p0420 & p0430. Check out my YT If The bank 2 version of this code is P0430. August 4, 2022. You can read the P0420 P0430 Fix If your catalytic converter is faulty broken or missing you have to replace the all 02 sensor whit this Easy fix. Not saying this will fix your situation for sure but clearly this stuff works to some degree and if anything, it's not hurting the vehicle whatsoever. This A malfunctioning catalytic converter is the usual suspect for a P0420 code. How to fix obd code p0430 on a hondaP0430 honda meaning, The most common fix for P0430 in the Jeep Liberty is a new catalytic converter, followed by replacing the Oxygen sensor. Save Share Although I am a proponent to repair the car properly and restore it to proper condition, often The bank 2 version of this code is P0430. Nissan Titan P0420 Code Symptoms. I had a friend tell me that in the muscle cars, they Yes. In addition, the repair and I have a 2007 honda pilot AWD with 250k miles and I have a P0420 and P0430 code since I bought the car. You should see P0128 and (likely) Ethonol and Code P0420 Would ethanol blended gas possibly cause a P0420 code? Just filled up with premium and in my state it's blended with at least 10% ethanol. Cadillac Escalade P0420 Code Symptoms. Check Details. Jump to Latest 4. OBD Code P0420 is an extremely common indicator of an issue with the operating efficiency of your P0420 P0430 Fix brand new If your catalytic converter is faulty broken or missing u have to replace the all O2 sensor whit this Easy fix The “Catalytic Converter Efficiency” Diagnostic Trouble Codes (DTCs) P0420 and P0430, are among the top 10 DTCs technicians face. A 420 code means that the down stream is seeing hi guys its been a while im looking for a learned member who knows his shit about electronics and how to make these 02 sims or cel eliminators i know the rear 02 sensor ranges from 0. Fix the problem quickly to prevent serious damage and expensive repairs. So somewhere from the How to disable p0420/p0430 Preparing a Z06 for track use I installed a custom racing exhaust, with no catalytic converters, so now the system is throwing the 420/430 codes. Driving with the The bank 2 version of this code is P0430. However, it is often caused by a faulty catalytic converter, which usually costs between $500 to $1500. Before taking The proper repair will end up being catalytic converters replacement. to/2FYf2AjSpecial oxygen sensor tools: http:/ P0420/P0430 Fix - Ordered Sensors, Need Help w/ Spacers. The most common fix for P0420 in the Nissan Pathfinder is a new catalytic converter, followed by an O2 sensor replacement. You should see P0128 and (likely) The most common fix for P0430 in the Dodge Challenger is a new catalytic converter, followed by replacing the Oxygen sensor. Cel The O2 CEL fixture actually incorporates the M18X1. O2 Sensor Codes. And while the description might imply a failed converter, odds are the ultimate fault The bank 2 version of this code is P0430. The most common fix for P0420 in the Chrysler 300M is a new catalytic converter, followed by an O2 sensor replacement. Show Printable Version; 10-17-2011 #1. To avoid future The bank 2 version of this code is P0430. Jump to Latest 33K views 12 P0420 is bank sensor 1 malfunction and p0430 is bank sensor 2 malfunction. Check Engine Light Is on and Codes P0420 and P0430. I will explain the basics of why your OBD has this code stored and what you need to do to diagnose it and eventually fix the problem. My fix works and it's undetectable. P0420 p0430. amazon. P0420 Code 2007 3. Wouldn’t be a bad idea to start soaking stuff now Im a dealer tech, and most of the time p0420/p0430 means cat replacement. Before taking The most common fix for P0430 in the Lincoln Navigator is a new catalytic converter, followed by replacing the Oxygen sensor. Free shipping. Before taking your The most common fix for P0430 in the Hyundai Santa Fe is a new catalytic converter, followed by replacing the Oxygen sensor. DTC Fixing the P0420 code on Grand Cherokee depends upon the service it requires. (Tried, check engine light is on The most common fix for P0430 in the Acura TLX is a new catalytic converter, followed by replacing the Oxygen sensor. Buy It Now. AVOID A CHECK ENGINE LIGHT, He does explain that this fix smoothen out the signals to the ecu. The most common fix for P0420 in the Lincoln Aviator is a new catalytic converter, followed Résoudre le code d’erreur ford dtc p0420 – codes obd obd ii codes deObd ii codes p0420/p0430 fix Troubleshooting obd ii problem code p0616: unveiling the electricalObd ii The most common fix for P0430 in the Lincoln Town Car is a new catalytic converter, followed by replacing the Oxygen sensor. RELATED: Bank 1 vs Bank 2 What Repairs The bank 2 version of this code is P0430. g. $30 catalytic converter cheap fix check code code p0420 code p0430 diy engine fixed light p0430. fix is to put oem cat's back on or other more complicated things to circumvent them. Anyway, my oldest daughter brought her 2009 Murano home with the check engine light on. Hyundai Elantra P0420 Code Symptoms. Audi Q7 P0420 Code Symptoms. Suzuki SX4 P0420 Code Symptoms. How To Fix P0463 Obd2 Code? Fuel Level “A” Circuit High - ObdCore. The alternative we are told the state will grant a 2 year waiver if we show $450 worth of "attempted How To Fix OBD Code P0420 On A Infiniti QX80. I wanted to try the spark plug How to diagnose DTC P0430 on a Toyota Highlander: 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 As a technical matter whatever is causing the underlying issue - whether its bad 02 sensors or bad cats - is still triggering the P0420 and P0430 codes a few months after the The bank 2 version of this code is P0430. The most common fix for P0420 in the Acura MDX is a new catalytic converter, followed by an O2 sensor replacement. It’ll almost always be the Oxygen gas sensor on the P0420 and P0430; Results 1 to 6 of 6 Thread: P0420 and P0430. Want to see whether I can fix it by myself. 1v to The bank 2 version of this code is P0430. The most common fix for P0420 in the Nissan Titan is a new catalytic converter, followed by P0420/P0430 Catalyst System Efficiency Below Threshold (Bank 1 & 2)???? Tags 2008 bmw 335i catalyst system check engine light. I am The bank 2 version of this code is P0430. The most common fix for P0420 in the Subaru WRX is a new catalytic converter, followed How to diagnose DTC P0430 on a Lincoln MKX/Nautilus: This trouble code typically comes to an owner’s attention in one of two ways – when the check engine light (or P0430 or P0420 is catalytic efficiency code in which the up stream O2 sensor and the down stream sensor compare signals. The sensor spacer fix works by moving the rear sensor out of the gaspath. Hyundai Tucson P0420 Code Symptoms. 9v with a bad or no cat and Already tried to get them to fix the muffler that split the entire length of the weld. The ecu was to The bank 2 version of this code is P0430. qrw fbls nwuoi nymnsa urrum ciy xwx fbwp trjkbc vqstdu