Chevy sonic p0420

I have a 2016 Chevy sonic. P0420 code for over a year now, replaced both upstream and downstream O2 sensors and replaced the catalytic converter (OEM) and check engine light with this code keeps coming on. Mechanic said he checked for leaks before replacing cat, I asked to check the manifold also, he said he checked it all.

Chevy sonic p0420. Here is a tutorial on how to fix code p0420 catalyst system efficiency below threshold bank 1 how to diagnose and fix a Catalytic Converter and what to look ...

This page is meant to help you troubleshoot the Chevy Tahoe P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table

P0420 Catalysis System Efficiency. I financed a 2014 Chevy Sonic in May, 89,000 miles. I recently had a light come on my dash, and it read P0420. I need to get my front catalyst converter replaced, and the quotes I’ve gotten are all over the place. Basically anywhere from $700-$3,000.If the SPS Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS system as follows: Open TIS on the computer used to program the vehicle. Select and start SPS. Select Settings. Select the Warranty Claim Code tab. The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events.P0420 definition : Catalyst system efficiency below threshold (Bank 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid further damage to your emission system and possible engine damage. Diagnosis: The most common cause of …=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0420 Saving Repair Parts:C...Jun 12, 2019 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... 2011 Chevy Cruze LT 1.4. Have a P0420 and no other codes. Replaced plugs (looked to be a good burn), checked PCV system, changed oxygen sensors and replaced catalytic converters with aftermarket ones. PCV hose from turbo housing to intake was found to be bad as the check valve was not seating properly. Replaced.

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 (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 catalytic convert needs to be ...P0300 is a generic OBDII code that can occur with the Chevy Sonic. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, the ...P0234 is a standard OBD2 trouble code that can occur in the Sonic. In layman’s terms, it indicates a potential problem with an engine’s forced induction system, and you should only see it if your car is turbocharged. Too much boost can trigger the sensor to turn on the check engine light. This warning code requires immediate attention …P0420 definition : Catalyst system efficiency below threshold (Bank 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid further damage to your emission system and possible engine damage. Diagnosis: The most common cause of …About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket …

If you drive an Buick Encore, Chevy Sonic or a Chevy Cruze and have these codes p015B p0171 p1101, check your purge valve and watch this video. Billy walks y...Apr 30, 2021 · =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈== How to Fix CHEVROLET P0420 ==Engine Code CHEVROLET P0420 Savin... Code P0410 P0411 P0412 Chevrolet Cruze Sonic Fix Secondary Air Injection PumpIf you have engine light on and code such as P0410, 0411, or P0412 we will expl... To unlock every cheat and character in “Ultimate Flash Sonic,” players need to enter 595313131313131 in the password select screen. This unlocks Jukebox, Moon Gravity and Sonic Run...FOLLOW THIS GUIDE if you have a P0420 code. I will explain what the code means, how to diagnose it, and all that backed up by 100+ fixes case study, where I. ... 2004 Chevrolet Silverado 1500 4.8L: O2 sensors: 2004 Volvo XC70 2.5L: O2 sensors: 2005 Jeep Liberty Limited: O2 sensors: 2003 Honda Element EX 2.4L: PCM Re-Flash: …May 19, 2021 · 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.

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What Does the P0420 Code Mean? 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 …P0171 definition: Bank 1 has too much air or not enough fuel. Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: It is important to complete the entire diagnostic ...2014 Need help: codes P0420 & P2097. Hi all. Hoping to get some help and avoid multiple costly trips to the dealership for service. My wife’s 2014 Volt started smoking from the exhaust last week on her way home from work and the check engine light came on. The communication center read “propulsion power is reduced “ and “engine not ...2014 Need help: codes P0420 & P2097. Hi all. Hoping to get some help and avoid multiple costly trips to the dealership for service. My wife’s 2014 Volt started smoking from the exhaust last week on her way home from work and the check engine light came on. The communication center read “propulsion power is reduced “ and “engine not ... P0420 is a diagnostic trouble code (DTC) for "Catalyst System Efficiency Below Threshold (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic ... Here are the most common causes of P0420 in the Chevy Sonic: Likely Causes. Bad catalytic converter; Bad O2 sensor; Other Causes. Exhaust leak; O2 sensor wiring; PCM issue; Overheating converter (usually caused by a misfiring engine, there should be codes) Burning oil (overheats converter, usually no code) Engine not heating up enough

Accordingly_ • 1 yr. ago. I'm not sure why it wouldn't let me add more info. I have had my catalytic converter replaced twice, o2 sensor, exhaust flex pipe, ignition coil pack and spark plugs replaced. Three days after the last repair, my check engine came back on, same code. I haven't been able to get it back in yet. 1.Feb 14, 2020 · Yet the P0420 remains intermittent. The Important Part When I used the CRC Intake cleaner a couple weekends ago, spraying it into the throttle body with the engine at about 1800/2000 rpm, on a few occasions I noticed a kind of "burp" of smokey air emit from a passage that exited the engine and would have gone directly into the air box ..which ... Earlier this year, Sonic the Hedgehog 2 (2022) absolutely dominated the box office. Domestically, it became the highest-grossing film based on a video game of all time. But Sonic’s...This page is meant to help you troubleshoot the Chevy Silverado P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. …I have a 2016 Chevy sonic. P0420 code for over a year now, replaced both upstream and downstream O2 sensors and replaced the catalytic converter (OEM) and check engine light with this code keeps coming on. Mechanic said he checked for leaks before replacing cat, I asked to check the manifold also, he said he checked it all.Also driving a 2015. Had a P0420 issue and for me it was the flex pipe, dealership recommended replacing the cat but there was no way I was going to do that. Replaced the bank 1 O2 sensor as well and it all seemed to work, erased the code and it hasn’t come back. Doing the drive cycle for the OBD systems was a huge pain.Hello, I had the P0420 code pop up like < a year ago: O2 sensor near the engine was replaced and the code went away. Code comes back eventually. Sonic is a little hesitant at low speeds. Remains only code for ~1 month. Sonic is noticeably louder. Remains hesitant at low speeds, acceleration mostly fine at higher speeds. Code P2097 appears.Replacing the thermostat on a 2016 Chevrolet Sonic with a 1.8L engine after the MIL light illuminated and found code P0599. Thermostat Assembly With Coolant ...P0300, Misfiring can't find reason. Hello everyone, please take a moment to read, I'm sorry for the lengthiness but I'm making sure to give as much detail as possible. I have a 2015 LTZ 1.4 Turbo with 123k miles. I recently had to replace my valve cover in late November 2019 and since then I've had a misfire with CEL code P0300 (Random misfire ...This page is meant to help you troubleshoot the Chevy Blazer P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. TableWaterpik Sonic Fusions are a popular choice for those looking for an effective and efficient way to clean their teeth. Unfortunately, like any other electronic device, they can som...Hello I'm Paul and I will help you with your question. Code p0420 mean s the Catalytic converter is not performing as efficiently as the computer would like to see and does not always cause any drive ability issues but sets the code. Out of 21 cases of p0420 on the 2013 Cruze 20 were a bad Catalytic converter and only 1 was an oxygen sensor.

2. Enter the VIN in the parts catalog and go to the fuel injector rail parts section. 3. After the injector part number has been identified on the body of the injector, in the description column. For example, part number 12668390 highlighted in the table. To the left is the part number that will need to be order.

The code P0420 on your 2016 Chevrolet Sonic LT indicates that the catalytic converter is not working properly. However, the fact that the converter is only a few months old makes it less likely to be the culprit. Here are some other things that could be causing the code:A bad oxygen sensor.August 4, 2022. OBD Code P0420 is an extremely common indicator of an issue with the operating efficiency of your Chevrolet Sonic's catalytic converter, so it's letting you know …Does Cataclean really fix a P0420 / P0430 error code and catalytic converter. Cataclean Link: https://amzn.to/33t8RVQ Second channel for easy to follow Home ...27 posts · Joined 2018. #1 · May 30, 2018. Hey guys, first post here. My wife has a 14 cruze with the 1.4 and yesterday the check engine light came on. She ran it by a dealer and it came up with the 0420 code with the catylist system low efficiency. I did a fee searches and came up finding several had this issue, but never saw a for sure culprit.So, he Reset the CEL and I drove away two days later my light returns on again and now I check my Codes today and see both the P0299 under boost from turbo and P0420 catalytic converter low efficiency below threshold from bank 1. I have replaced sparkplugs with acdelco that were OEM parts, also the ignition coils, oil change with full synthetic ...P0420 Code in Subaru. The P0420 code on a Subaru often can be triggered by a bad catalytic converter or a faulty oxygen sensor on older models. Look for exhaust leaks as well, as with Honda, replacing your catalytic converter or oxygen sensors and regular servicing can help resolve the issue.Detailed information on the P0420 dtc trouble code. Includes why it happens and how to fix your car. Trouble Code - P0420 Catalyst System Efficiency Below Threshold (Bank 1) ... I have 2003 Chevy avalanche with P0420 code and the motor is running rough shouod I change the rear o2 sensor or the cat #276 - Andrew swanson - 10/14/2012 - …In today's video we take a look at this 2014 Chevrolet Cruze with a 1.4l 4 cylinder turbo engine. The check engine light is on and it has a P0420 code stored...

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P0171 definition: Bank 1 has too much air or not enough fuel. Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: It is important to complete the entire diagnostic ...P0300 is a generic OBDII code that can occur with the Chevy Sonic. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, the ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0420 Saving Repair Parts:C...Below is a list of common conditions to set a P0420 DTC. This was taken from the 2014 GM Service Manual for the 2.4L. Engine misfire. High engine oil or coolant consumption. Weak or poor spark. Retarded spark timing. Rich or lean fuel mixture. Damaged O2 sensor or wiring harness. 2014 Equinox LTZ FWD 3.6L.Earlier this year, Sonic the Hedgehog 2 (2022) absolutely dominated the box office. Domestically, it became the highest-grossing film based on a video game of all time. But Sonic’s...May 21, 2021 · So, he Reset the CEL and I drove away two days later my light returns on again and now I check my Codes today and see both the P0299 under boost from turbo and P0420 catalytic converter low efficiency below threshold from bank 1. I have replaced sparkplugs with acdelco that were OEM parts, also the ignition coils, oil change with full synthetic ... Engine Code CHEVROLET P0420: Catalyst System Efficiency Below Threshold (Bank 1). It indicates that the Catalytic Converter is not functioning efficiently, …The catalytic converter is part of the exhaust system in Chevy Sonic and its main purpose is to convert exhaust gases like carbon monoxide and hydrocarbons that are harmful to health and the environment into less harmful byproducts, like carbon dioxide and nitrogen gas. ... If you see any fault code from P0420 to P0424 or from P0430 to P0434 …Related: P0420 Chevy Sonic Chevy Sonic P0496 Symptoms P0496 code in the Chevy Sonic will often be accompanied by an. One of the most common trouble codes with the Chevy Sonic is the P0496 code. This code number references a number that is given to you when you plug your Sonic into an OBDII scanner. Related: P0420 Chevy … ….

Oct 18, 2022 · P0234 is a standard OBD2 trouble code that can occur in the Sonic. In layman’s terms, it indicates a potential problem with an engine’s forced induction system, and you should only see it if your car is turbocharged. Too much boost can trigger the sensor to turn on the check engine light. This warning code requires immediate attention to ... Gm’s 1.4L turbocharged 4-cylinder engine, commonly found in the Chevy Sonic, Cruze and Buick Encore, has a well-known issue resulting in a lean code, P0171, ...Feb 14, 2020 · Yet the P0420 remains intermittent. The Important Part When I used the CRC Intake cleaner a couple weekends ago, spraying it into the throttle body with the engine at about 1800/2000 rpm, on a few occasions I noticed a kind of "burp" of smokey air emit from a passage that exited the engine and would have gone directly into the air box ..which ... Sep 14, 2018 · This page is meant to help you troubleshoot the Chevy Sonic P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents Jan 3, 2020 · Hello I'm Paul and I will help you with your question. Code p0420 mean s the Catalytic converter is not performing as efficiently as the computer would like to see and does not always cause any drive ability issues but sets the code. Out of 21 cases of p0420 on the 2013 Cruze 20 were a bad Catalytic converter and only 1 was an oxygen sensor. Mar 21, 2024 · If you experience a P0420 code in your Chevy, it is often due to an exhaust leak before the catalyst. It can also be caused by a faulty downstream oxygen sensor (rear) or a faulty catalytic converter. Buy Now!New Catalytic Converter from 1AAuto.com http://1aau.to/ic/1ACCD00436This video shows you how to install a front catalytic converter on your 2011-2015...This page is meant to help you troubleshoot the Chevy Captiva P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. …Code P0420 Chevrolet Description. A 3-way catalyst controls emissions of hydrocarbons, Carbon Monoxide (CO), and Nitrogen Oxide (NOx). The catalyst within the converter promotes a chemical reaction, which oxidizes the hydrocarbons and the CO that are present in the exhaust gas. This process converts the hydrocarbons and the CO into water vapor ...2014 Need help: codes P0420 & P2097. Hi all. Hoping to get some help and avoid multiple costly trips to the dealership for service. My wife’s 2014 Volt started smoking from the exhaust last week on her way home from work and the check engine light came on. The communication center read “propulsion power is reduced “ and “engine not ... Chevy sonic p0420, Oct 20, 2019 · Chevrolet Cruze and Chevy Sonic share many parts that's why it should help on Chevy Sonic too. Meaning of the code: P0420 Catalyst System Efficiency Below Threshold This may work on:... , 1. Replace the exhaust front pipe and the warm up three-way catalytic converter. NOTE: A new converter with less than 100mi on it may set the P0420 DTC due to outgassing of the internal matting. Operating the vehicle at highway speeds for approximately 1 hour may correct the condition.", In today's video we take a look at a 2014 Chevrolet Cruze with a 1.4l 4 cylinder turbo engine. The vehicle has a check engine light illuminated and has codes..., I have a 2016 Chevy sonic. P0420 code for over a year now, replaced both upstream and downstream O2 sensors and replaced the catalytic converter (OEM) and check engine light with this code keeps coming on. Mechanic said he checked for leaks before replacing cat, I asked to check the manifold also, he said he checked it all., P0420 (Catalyst system efficiency below threshold bank 1) and P0171 System too Lean Bank 1. The second is intermittent but the first is constant. If cleared, it returns in 3 trips at operating temperature and is always in the permanent storage of the ECU. Originally it decided to throw a P0299 (turbo under-boost) code and not want to go up hill., Waterpik Sonic Fusion is a revolutionary flossing system that combines the power of water and air to provide a more effective and comfortable flossing experience. While this produc..., Codes: (MOST CURRENT CODES AS OF RIGHT NOW) P2097: Post catalytic converter fuel trim (FT) bank 1- too rich. P0420: Catalytic converter system, bank 1 -efficiency below threshold. Exact Chevy Diagnosis: CAUSE: ENG replaced valve cover, customer declined spark plugs, advised converter may have been damaged also., Hesitation When Shifting Gears. The most common Sonic transmission problem is hesitation while shifting gears. A version of the Sonic exists with a manual transmission, but this problem is only prevalent with the automatic version. The problem starts to present itself around 30,000 miles of driving. Drivers of automatic Sonics …, Nov 25, 2563 BE ... In this video I show how to remove and replace the Vapor Canister Purge Valve on a 2015 Chevy Sonic Turbo. The video is applicable to 2012 ..., Feb 18, 2021 · 1378 posts · Joined 2014. #3 · Feb 18, 2021. P0420 is often the sign of a failed cat. Since the O2 sensors have been replaced this is much more likely. Since you also have a P0299, this is likely the cause of the failed cat. You need to determine what caused the P0299, could be an air leak, turbo problems. , What triggers the PCM to set a P0420 code is a measurement of the oxygen capacity of the grid in the cat. The grid is also the expensive part, which aftermarket manufacturers …, P0300, Misfiring can't find reason. Hello everyone, please take a moment to read, I'm sorry for the lengthiness but I'm making sure to give as much detail as possible. I have a 2015 LTZ 1.4 Turbo with 123k miles. I recently had to replace my valve cover in late November 2019 and since then I've had a misfire with CEL code P0300 (Random misfire ..., Oct 20, 2019 · Chevrolet Cruze and Chevy Sonic share many parts that's why it should help on Chevy Sonic too. Meaning of the code: P0420 Catalyst System Efficiency Below Threshold This may work on:... , If you have a 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, or 2019 Chevy Cruze or Chevy Sonic, and your engine is running rough and you have a check engin..., It was a P0420 code for my catalytic converters saying low efficiency. I also learned today my car has two catalytic converters and this is the one under the hood near the turbo giving this code I guess. ... Haha I just don’t want to have another diagnostic done because I’ve already had to pay chevy a diagnostic fee and I’m worried if I ..., 14. Plastic bag stuck on the exhaust pipe. The cause of the burning smell in your Sonic could be as simple as a piece of garbage, like a plastic bag, stuck on the exhaust system. Inspect the undercarriage of your vehicle for any sign of garbage, including the muffler, the exhaust pipe and the catalytic converter. 15., This page is meant to help you troubleshoot the Chevy Silverado P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table, This page is meant to help you troubleshoot the Chevy Avalanche P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. …, 1378 posts · Joined 2014. #3 · Feb 18, 2021. P0420 is often the sign of a failed cat. Since the O2 sensors have been replaced this is much more likely. Since you also have a P0299, this is likely the cause of the failed cat. You need to determine what caused the P0299, could be an air leak, turbo problems., P0420 code for over a year now, replaced both upstream and downstream O2 sensors and replaced the catalytic converter (OEM) and check engine light with this code keeps …, Conclusion. P0446 is a diagnostic trouble code (DTC) associated with a vehicle’s evaporative emissions control system. It signifies an issue in the vent control circuit in your Chevy Sonic’s EVAP system, which prevents fuel vapor from being released into the atmosphere. A prevalent issue with the Chevy Sonic is the P0446 code., The coolant gauge problem is probably unrelated to the p0420 or the sluggish shifting. If the computer’s temp sensor failed (the one not related to the gauge), that might cause drivability symptoms, but seems unlikely. First b/c those sensors are simple thermistors and rarely fail., The P0420 code points to “Catalyst System Low Efficiency” and signals that oxygen levels are below the desired threshold on bank 1, based on readings from the …, 1 post · Joined 2022. #1 · Mar 8, 2022. So about 2 years ago I got my 2012 1.4t cruze from my sister. She was trying to sell it but it had the P0420 code and took way to much off the price so she went to a shop and had it looked and and they said it was a bad down pip right after the turbo and cost her 900$ and it worked for awhile., The most common cause of the P0420 engine code is a degraded catalyst. Catalytic converters/catalysts break down over time and can also become clogged. Cylinder misfires will significantly reduce ..., Jun 16, 2021 · XjJunky. I just went through this, you can try cleaning them but very good chance your just going to need a new cat. If your mechanically savvy just pop the cat off and have a look, or if you have a good endoscope pull your o2 sensor out and have a look that way. Mine was melted inside. Also a 2012 with 180xxx miles on mine. , Code P0410 P0411 P0412 Chevrolet Cruze Sonic Fix Secondary Air Injection PumpIf you have engine light on and code such as P0410, 0411, or P0412 we will expl..., Fix code p0420 on chevrolet cruze, chevy sonic catalyst system. Chevy p0420 code cruze p0442 express pilot p0430 honda trouble tacoma system causes catalyst efficiency threshold below cause many thingsP0420 chevy cruze: catalyst system efficiency below threshold 2013 chevy cruze lt 1.4 turbo i have code p0420. i’ve changed the bank. ..., In this video I show how to remove and replace the Vapor Canister Purge Valve on a 2015 Chevy Sonic Turbo. The video is applicable to 2012 - 2018 Chevy Soni..., The most common cause of the P0420 engine code is a degraded catalyst. Catalytic converters/catalysts break down over time and can also become clogged. Cylinder misfires will significantly reduce ..., P0420 Catalysis System Efficiency. I financed a 2014 Chevy Sonic in May, 89,000 miles. I recently had a light come on my dash, and it read P0420. I need to get my front catalyst …, Decoding the P0420 Code: Bank 1 Catalyst System Efficiency Below Threshold. The catalyst system efficiency below threshold is tech speak for "Hey buddy, your catalytic converter is slacking on cleaning duty." This troublemaker of a code pops up when your car's brain (aka your cars computer system) senses that the cat isn't filtering …, Fix code p0420 on chevrolet cruze, chevy sonic catalyst system. Chevy p0420 code cruze p0442 express pilot p0430 honda trouble tacoma system causes catalyst efficiency threshold below cause many thingsP0420 chevy cruze: catalyst system efficiency below threshold 2013 chevy cruze lt 1.4 turbo i have code p0420. i’ve changed the bank.. 2013 ...