Kia soul code p0420

Common Reason: Code P0420 is often related to a bad catalytic converter. P0420 means the catalytic converter is not efficiently removing pollutants from the exhaust. Your car won’t pass an emissions test. A bad catalytic converter isn’t a hazard to the driver but it can overheat and destroy engine components.

Kia soul code p0420. The Kia Code P0420 refers to a diagnostic trouble code that indicates a problem with the catalytic converter in a Kia vehicle. The code specifically points to a catalytic converter efficiency below the accepted threshold, indicating that the converter is not effectively reducing harmful emissions.

P050A and secondary P0420. I own a 2014 1.6 base model with a little less than 100k in it. Was have P050A code come on in cold weather with high idle at start but then recently took it to kia to get logic update. That fixed the problem of high idle but then randomly the check engine light will come on for a couple days then go off again for a ...

New to this site. Looking for advice. 2015 Kia Soul 2.0 liter. Last week threw codes p0300 p0301 p302 p304. So this first tells me multiple misfires. The other tells me in cylinder 12&4. Took it to a local shop who read the codes and told us to go straight to dealership as still under warranty. Ran fine on way there.How To Fix The P0420 Trouble Code. Verify the code with an OBD-II scanner and reset the check engine light to see if it comes back. Inspect and replace faulty oxygen sensors. Check for exhaust leaks and repair as necessary. Replace worn-out spark plugs or spark plug wires.If your car had the code p0420 stored and it is a 1.6 that has the software recall you would also get a new cat installed as part of the recall. ... My 2015 Kia Soul 1.6L has code p0420 on the receipt. They replaced the catalytic converter n/c but will not touch the engine unless I pay $9k.“Guilt is a part of the battlefield that often goes unrecognized,” writes Nancy Sherman, a professor at Ge “Guilt is a part of the battlefield that often goes unrecognized,” writes...The most common fix for P0420 in the Kia Sedona is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Sedona into an exhaust shop for an (expensive) new catalytic converter, let’s ensure that’s what you need. Here’s a good P0420 diagnostic order for the Kia Sedona: 1. Check for Other Codes.I have a 2014 kia soul base 1.6 liter with 90,000 miles. I am getting code p0420. So i replaced the cat and both up and down stream o2 sensors, new denso iridium plugs, 4 coil packs, gas cap and pcv valve.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 …May 9, 2022 · jeremiahchub. 56 posts · Joined 2017. #7 · Jun 12, 2019. Also, you may want to try replacing the FUEL pressure regulator itself. that code also goes with that as well. 2010 Molten Red Kia Soul +, 2.0L Beta II Engine, Mitsubishi 5-Speed (Yes the transmission real is made for Kia by Mitsubishi), and getting used to So Cal.

TSB: SC176 (Rev 1)Soul (AM, PS) April 2019 SUBJECT: Inspection Procedure: 1. Using the KDS (connected to the internet to create and transmit a VDN*), perform a Fault Code Search and confirm DTC P0420 or both P0420 and P030X is/are stored (Active, History or Pending). Follow the flow chart below and perform the necessary procedure(s). 2016 Kia Soul Pulling Both P054A & P0420 Codes. I have a 2016 Kia Soul with 79k miles on it. The check engine light came on a few months ago & it pulled the P0420 code for the catalytic converter, but after a few days, the light went off without me doing any further diagnostic testing so I left it alone. Today the check engine light came on again.A somewhat common issue with the Kia Soul is the P0449 code. This code references a number that is given to you when you plug it into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very often P0455. P0449 is normally …Aug 20, 2020 · Code P0420 KIA Tech Notes. As the code description implies the P0420 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert ... p0420 uh oh. so at just under 80k (79,618) the engine light been coming and going .i go get it read free at autozone . p0420 code .a cat /sensor code. being the second owner we rush it to kia as emmissions are only covered until 80,000 for second owner . rather that then a way overpriced sensor i would be out for and a 100 dollar diagnostic fee .Window treatments are an excellent way to add style and personality to any room. Learn more about window treatment ideas with guides and photos. Advertisement If eyes are the windo...P0420 has been coming up regularly for 6-8 months now, and my front cat finally plugged up this week. $1,400 CAD for the parts only, but if I had set the parts aside ahead of time from Rock Auto, I would have paid about $1,000 in total for these items. Labor was another 3.5 hours to replace everything.

Well P0420 is the engine code for catalytic converter. ... USA - 1999 Kia Elan 1.8L, 2017 Ford Edge Sport 2.7L V6 T, 2015 Ford Mustang 3.7L V6, ... Come discuss the Kia Sorento, Rio, Sportage, Soul and more! Show Less . Full Forum Listing. Explore Our Forums. 2011 - 2013 ...Nov 16, 2018 · P0303 is a cylinder-specific misfire code, meaning it’s only the third cylinder that has a misfire. Before you can diagnose P0303 in your car, you need to find the third cylinder. On “V” configuration engines, it’ll usually be the second cylinder on the head closer to the front of the engine. On inline engines, the third cylinder will ... Plus: Elon Musk’s extremely busy week Good morning, Quartz readers! US state attorneys called for a recall of Kia and Hyundai cars. The vehicles are apparently too easy to steal. L...How to diagnose code P0420 on a Kia Soul. Typically, you'll find out about P0420 because your malfunction indicator lamp or "check engine light" turned on & you or a mechanic diagnosed the problem with an OBD II code scanner like this one from Bluedriver. You may experience a very slight reduction in engine power from reduced …2015 Soul, 1.6 L, V4 - 93,000 + mi. Code P0420 Catalyst operating below minimum threshold. P0420 is an all around code dealing with emmisions. To learn more about this code, view YouTube videos of scannerdanner. or any other videos explaining about 02 sensors, fuel trims, catalytic converter, etc.How To Diagnose. If you are experiencing problems with your Kia Soul related to the P0441 code, then there are several steps you can take to diagnose the issue. First, check the fuel cap on your Soul and ensure that it is tightly secured. A loose or faulty fuel cap is often the cause of the P0441 code. If the fuel cap appears to be in good ...

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If your car had the code p0420 stored and it is a 1.6 that has the software recall you would also get a new cat installed as part of the recall. If your car had the p0420 code and misfire codes a compression test will be done under the recall and if it falls below spec they will replace the short block as part of the recall.About the only things that could cause P0420 are an actual inefficient catalytic converter or a bad O2 sensor. Another possibility if you have an exhaust leak upstream that occasionally goes under vacuum, I could see sucking oxygen into the exhaust and maybe triggering the code. I don't know how likely that one is on a Kia. 2016 Kia Soul ! M.The most common fix for P0420 in the Kia Picanto is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Picanto into an exhaust shop for an (expensive) new catalytic converter, let’s ensure that’s what you need. Here’s a good P0420 diagnostic order for the Kia Picanto: 1. Check for Other Codes.Well P0420 is the engine code for catalytic converter. ... USA - 1999 Kia Elan 1.8L, 2017 Ford Edge Sport 2.7L V6 T, 2015 Ford Mustang 3.7L V6, ... Come discuss the Kia Sorento, Rio, Sportage, Soul and more! Show Less . Full Forum Listing. Explore Our Forums. 2011 - 2013 ...The P0420 code is a common diagnostic trouble code that indicates an issue with the catalytic converter in your Kia Soul. When this code appears, it …Feb 9, 2022 · P0420 has been coming up regularly for 6-8 months now, and my front cat finally plugged up this week. $1,400 CAD for the parts only, but if I had set the parts aside ahead of time from Rock Auto, I would have paid about $1,000 in total for these items. Labor was another 3.5 hours to replace everything.

Was told my car had two recalls that I never got notice about. Was Still throwing that P0420 code they did a diagnosis and it is a bad cat but luckily as someone stated before and it is covered by the warranty! I have a code a P0420 pulling up my on ‘16 Kia Soul. I have about 99.2k miles on it.In this video, you'll learn the causes and solutions of the P0420 code. The causes of the P0420 code are a bad catalytic converter, an ECM update, an exhaust...Summary. The P0326 code stands for “Knock Sensor 1 Circuit Range/Performance Bank 1,” which means the powertrain control module (PCM) detected that the knock sensor’s signal has fallen outside of the specified range. Some of the common causes of the P0326 code include a defective knock sensor, wiring issues, and a faulty PCM.P1326 is a very common code to find in the Kia Soul. It indicates that the Knock Sensor Detection System has detected excess engine vibration. An actual engine knock most commonly causes it, but a bad knock sensor or wiring problems are also common causes. Repairing P1326 should be considered a high priority since it indicates …Definition meaning and fixes KIA P0420: Warm Up Catalyst Efficiency Below Threshold Bank 1 Diagnostic Trouble Code.3120 posts · Joined 2016. #8 · Jun 3, 2017. I got that code (P0326) today. First code I've had in almost five years and 57k miles. I may have done exactly what was said in the last post. I've tried resetting the code with my ScanGauge II and I still have it.A week later the P0420 codes returned after the downstream 02 sensor and cat was done. 2 weeks later it was game over. ... Not a compression test, but, a leak down test. CANADA - 2021 KIA Sportage Nightfall + 2020 KIA Soul Ex+. Save Share. Like. Paul24 Discussion starter 72 posts ... The code is a generic one. Everything i read said it could be the upstream o2 sensor, gas cap, or catalytic converter. Mine turned out to be the catalytic converter. P0420 Diagnosis: Kia Rio. The most common fix for P0420 in the Kia Rio is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Rio into an exhaust shop for an (expensive) new catalytic converter, let’s ensure that’s what you need. Here’s a good P0420 diagnostic order for the Kia Rio: 1. Check for Other Codes.P050A and secondary P0420. I own a 2014 1.6 base model with a little less than 100k in it. Was have P050A code come on in cold weather with high idle at start but then recently took it to kia to get logic update. That fixed the problem of high idle but then randomly the check engine light will come on for a couple days then go off again for a ...

My check engine light was on, now it's off. Code P0455 and P0420, mechanic says I need 2 catalytic converters. Car is 2015 Kia Soul , car isn't getting enough power on interstate or going uphill shoul … read more

The most common fix for P0420 in the Kia Picanto is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Picanto into an exhaust shop for an (expensive) new catalytic converter, let’s ensure that’s what you need. Here’s a good P0420 diagnostic order for the Kia Picanto: 1. Check for Other Codes.R. Rio Taxi. 631 posts · Joined 2016. #6 · Sep 5, 2022 (Edited) You are probably burning oil. I did both cats and both sensors over 2 months. A week later the P0420 codes returned after the downstream 02 sensor and cat was done. 2 weeks later it was game over. Burning a liter every 2,000 km. Rings were bad.The most common mechanical issues with the Kia Soul are a quickly deteriorating suspension system and airbags that fail to deploy, as reported by car repair statistics site CarComp...If you’re a car owner, there’s a good chance that at some point you’ve encountered the dreaded check engine light. Code P0420 is a generic diagnostic trouble code that indicates an...Gainers Ault Alliance, Inc. (NASDAQ:AULT) jumped 34.8% to $0.1265 in pre-market trading. Ault Alliance plans share buyback of up to 333.33 milli... Now Read This: Over $1M Bet On...Oct 8, 2020 · Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0420 code is combined with other codes, try fixing the other codes first. Read more: P0420 Kia - Warm Up Catalyst Efficiency Below Threshold Bank 1 Feb 7, 2020 · 2015 Kia Soul.90K miles. 1.6 AT. p0420 code. did temp check up/down stream for both cats and found downstream was 125~ degrees cooler than up stream so I know it’s a bad cat (s). But here’s my situation: 90K miles, didn’t have recall done since my VIN was never under the recall list (searched multiple times)

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A P0420 code is set when the upstream sensor and the downstream oxygen sensor sense the catalytic converter is not doing its job. Basically, the amount of oxygen going into the converter is not being burned, and it detects it through the downstream sensor. Oxygen is the key here. Modern Engine Management Systems leave a little bit of extra ... no todo el tiempo es el vatalizador el problema How To Diagnose. If you are experiencing problems with your Kia Soul related to the P0441 code, then there are several steps you can take to diagnose the issue. First, check the fuel cap on your Soul and ensure that it is tightly secured. A loose or faulty fuel cap is often the cause of the P0441 code. If the fuel cap appears to be in good ...23 posts · Joined 2019. #1 · Sep 7, 2019. 2013 kia soul. Engine light came on and this code came up p2191. I have changed the upstream o2 sensor and the code persists. I read that it can also be a bad mass air flow sensor. I just read a 1000+ page repair guide on this car and it does not seem to have one. Im lost. Posted by u/That-Mall-8347 - 8 votes and 7 comments As for that code for a Subaru, it could be a number of possible issues causing the code. It's rarely a bad cat, but other issues from the engine that are causing crap emissions issues. The P0420 code is one of the hardest to actually fix, as it could be too numerous a list of possible problems causing it. PCV valve Air filter Spark plugs Vacuum ...What are the Possible Causes of the Code P0420 KIA?# Faulty Three-way Catalyst Converter Bank 1# Exhaust Tube# Intake Air Leaks# Faulty Oxygen (O2) Sensor# F...P0420 has been coming up regularly for 6-8 months now, and my front cat finally plugged up this week. $1,400 CAD for the parts only, but if I had set the parts aside ahead of time from Rock Auto, I would have paid about $1,000 in total for these items. Labor was another 3.5 hours to replace everything.The P0420 code indicates that the Engine Control Module (ECM) has identified a decline in the efficiency of the catalytic converter on Bank 1. This could be attributed to a malfunctioning catalyst or potentially be a false alarm triggered by a defective O2 sensor. ….

In the same way that visiting a new place can help you face your fears, engaging in some form of spiritual healing can suddenly seem more appealing to travelers too. We're partneri...A code P0303 may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor(s) Faulty ... Kia Soul 2015 2.0 litre EX GDI Alien Green II Pearl ~73K km (45K miles) Michelin CrossClimate tires. Reactions: SportsterDoc.The P0420 code in a 2015 Kia Soul is a diagnostic trouble code that indicates a problem with the catalytic converter efficiency. This code typically means that the catalyst system is not operating at its optimal level and may need to be replaced. Causes of the P0420 code in a 2015 Kia Soul.The P0420 code is set when the Catalyst monitor sees a decrease in voltage from the rear Monitoring Oxygen Sensor(s) and an increase in switching activity—from rich to lean to rich, etc.—that closely resembles the front Oxygen Sensor(s) during the time the computer is activating the Catalytic Converter monitor test.The P0420 code in a 2015 Kia Soul is a diagnostic trouble code that indicates a problem with the catalytic converter efficiency. This code typically means that the catalyst system is not operating at its optimal level and may need to be replaced. Causes of the P0420 code in a 2015 Kia Soul.jeremiahchub. 56 posts · Joined 2017. #7 · Jun 12, 2019. Also, you may want to try replacing the FUEL pressure regulator itself. that code also goes with that as well. 2010 Molten Red Kia Soul +, 2.0L Beta II Engine, Mitsubishi 5-Speed (Yes the transmission real is made for Kia by Mitsubishi), and getting used to So Cal.Summary. The P0326 code stands for “Knock Sensor 1 Circuit Range/Performance Bank 1,” which means the powertrain control module (PCM) detected that the knock sensor’s signal has fallen outside of the specified range. Some of the common causes of the P0326 code include a defective knock sensor, wiring issues, and a faulty PCM.42 posts · Joined 2017. #1 · May 12, 2017. Hi, I have a 2012 kia soul 1.6 dont know the history on the car bought at salvage auction and repairing it, almost ready to go but it has a code p0326, knock sensor. Is there a way to test the sensor as I have read that it could be many things causing the code other than the sensor, it seems like it ... Kia soul code p0420, , Potential short squeeze plays gained steam in 2021 and have continued through 2022 with new traders looking for the next huge move. High short in... Potential short squeeze plays ..., A P0420 code is set when the upstream sensor and the downstream oxygen sensor sense the catalytic converter is not doing its job. Basically, the amount of oxygen going into the converter is not being burned, and it detects it through the downstream sensor. Oxygen is the key here. Modern Engine Management Systems …, 2016 Kia Soul 85,000 miles 1.6L I got a check engine light with P0420 a couple days ago. Still ran fine. I was going to take it to the dealership to maybe get a new converter under the recall, but decided not to try with all the hassle I …, 3120 posts · Joined 2016. #8 · Jun 3, 2017. I got that code (P0326) today. First code I've had in almost five years and 57k miles. I may have done exactly what was said in the last post. I've tried resetting the code with my ScanGauge II and I still have it., TSB: SC176 (Rev 1)Soul (AM, PS) April 2019 SUBJECT: Inspection Procedure: 1. Using the KDS (connected to the internet to create and transmit a VDN*), perform a Fault Code Search and confirm DTC P0420 or both P0420 and P030X is/are stored (Active, History or Pending). Follow the flow chart below and perform the necessary procedure(s). , 42 posts · Joined 2017. #1 · May 12, 2017. Hi, I have a 2012 kia soul 1.6 dont know the history on the car bought at salvage auction and repairing it, almost ready to go but it has a code p0326, knock sensor. Is there a way to test the sensor as I have read that it could be many things causing the code other than the sensor, it seems like it ..., P1326 is a very common code to find in the Kia Soul. It indicates that the Knock Sensor Detection System has detected excess engine vibration. An actual engine knock most commonly causes it, but a bad knock sensor or wiring problems are also common causes. Repairing P1326 should be considered a high priority since it indicates …, =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code KIA P0442 Saving Repair ..., I recently bought a 2014 Soul Base. It has 110,000 miles on it. A few days after I bought it, the check engine light came on. Auto Zone said it was a P0420 code. I took it to Pepboys and they also said it was the same code, but that it was a history code and they didn't recommend changing the catalytic converter., No P0420 code. P2096 and P2270 both ... Come discuss the Kia Sorento, Rio, Sportage, Soul and more! Show Less . Full Forum Listing. Explore Our Forums. 2011 - 2013 (XM) Sorento Forum 2016 - 2020 Sorento Forum 2003-2010 Sorento Forum 3G 2011 - 2016 Sportage 1G (1993 - 2002) Sportage., Sep 6, 2015 · Until now. I have a 2012 Soul+ Automatic (KNDJT2A63C7427727) with ~38500 miles that I got new. And a few weeks ago I got a Check Engine Light; off now, not reset. Took it to O'reillys to get the code read and I was told it was code p2096. I have an appointment soon with Kia but wanted to know more about what may possibly be going on before hand. , The code is a generic one. Everything i read said it could be the upstream o2 sensor, gas cap, or catalytic converter. Mine turned out to be the catalytic converter., R. Rio Taxi. 631 posts · Joined 2016. #6 · Sep 5, 2022 (Edited) You are probably burning oil. I did both cats and both sensors over 2 months. A week later the P0420 codes returned after the downstream 02 sensor and cat was done. 2 weeks later it was game over. Burning a liter every 2,000 km. Rings were bad., P0401: Faulty EGR (Exhaust Gas Recirculation) valve. P0455, P0446, P0442, P0440, or P0411: Problem with the evaporative system. P0305 or P0300: Engine misfires. P0175 or P0171: Faulty oxygen sensor. While these are the most common codes that the 7E8 engine code menu shows, they aren’t the only ones that the menu can have., TSB: SC176 (Rev 1)Soul (AM, PS) April 2019 SUBJECT: Inspection Procedure: 1. Using the KDS (connected to the internet to create and transmit a VDN*), perform a Fault Code Search and confirm DTC P0420 or both P0420 and P030X is/are stored (Active, History or Pending). Follow the flow chart below and perform the necessary procedure(s)., The sludge buildup on the OCVs appears to be the cause of the P0011/P0014 codes on my car. Remove and inspect both OCVs. In my case intake and exhaust OCVs had similar buildup. If there's sludge buildup, carefully remove it without damaging the fine mesh screen present on the valve. Once this buildup was removed, the stored code …, Oct 8, 2020 · Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0420 code is combined with other codes, try fixing the other codes first. Read more: P0420 Kia - Warm Up Catalyst Efficiency Below Threshold Bank 1 , Korean auto manufacturer Kia’s in-car infotainment system, known as UVO, gives you quick and easy access to a variety of features from navigation to music, including uploading your..., 2015 Kia Sorento LX P0420 Code & Burning oil. ... Come discuss the Kia Sorento, Rio, Sportage, Soul and more! Show Less . Full Forum Listing. Explore Our Forums. 2011 - 2013 (XM) Sorento Forum 2016 - 2020 Sorento Forum 2003-2010 Sorento Forum 3G 2011 - 2016 Sportage 1G (1993 - 2002) Sportage., In the same way that visiting a new place can help you face your fears, engaging in some form of spiritual healing can suddenly seem more appealing to travelers too. We're partneri..., Kia Soul P0420 OBDII Code Defined. P0420 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here’s the technical definition for your car: P0420: Catalyst System Efficiency Below Threshold (Bank 1) Catalyst System Efficiency. Your Soul’s exhaust contains hydrocarbons, … See more, Here’s a good P0420 diagnostic order for the Kia Sportage: 1. Check for Other Codes. The first thing you want to do when trying to fix P0420 in the Sportage 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 vehicle. Misfire Codes., 2015 Kia soul Base model - mileage 112,600 starts for few seconds and then starts flashing check engine light and dies. Replaced battery, alternator, exhaust Crankshaft Position sensor, and spark plugs (with NGK IR) Ran OBDll reader and have. P0302 misfire; P0420 cat converter bank 1 efficiency below threshold, 2015 Soul, 1.6 L, V4 - 93,000 + mi. Code P0420 Catalyst operating below minimum threshold. P0420 is an all around code dealing with emmisions. To learn more about this code, view YouTube videos of scannerdanner. or any other videos explaining about 02 sensors, fuel trims, catalytic converter, etc., Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 · [email protected]. Read FAQ. GET A QUOTE. P2191 code definition System Too Lean at Higher Load Bank 1 What the P2191 code means P2191 is an OBD-II generic code for the engine control module …, P0420 is Catalyst Efficiency Low, but that won't directly cause a rough idle. There is something more going on with your engine. A mis-firing cylinder can cause a rough idle and (indirectly) catalyst problems, but you should have a P0300, P0301, P0302, etc code to indicate which cylinder is mis-firing. So there are no other codes, only the P0420., In the same way that visiting a new place can help you face your fears, engaging in some form of spiritual healing can suddenly seem more appealing to travelers too. We're partneri..., 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., My 2012 Kia soul has a code P0420, C1555, P0135, P2191 and P2237. It had a hole in the flex pipe so I replaced it and replaced both O2 sensors. My check engine light was on, now it's off. Code P0455 and. My check engine light was on, now it's off. Code P0455 and P0420, mechanic says I need 2 catalytic converters., Korean auto manufacturer Kia’s in-car infotainment system, known as UVO, gives you quick and easy access to a variety of features from navigation to music, including uploading your..., All Of The Kia Trouble Codes! ... P0420 Catalyst System Efficiency below Threshold - Bank 1. ... 2001 Audio A6, 2003 GMC Sierra, 2016 Kia Optima SXL, 2019 Kia Soul Plus Special Edition. Save Share. Like. 0 Reply. This …, Definition meaning and fixes KIA P0420: Warm Up Catalyst Efficiency Below Threshold Bank 1 Diagnostic Trouble Code.