2010 chevy equinox p0420

Code p0014 and P0420, I just bought this car previous owner said needed oil change and tune up, 2011 Chevrolet equinox, - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... 2010 Chevrolet Equinox setting P0016, P0017, P0011 and P0014. ...

Code p0014 and P0420, I just bought this car previous owner said needed oil change and tune up, 2011 Chevrolet equinox, - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... 2010 Chevrolet Equinox setting P0016, P0017, P0011 and P0014. ...The P0455 diagnostic trouble code appears when there’s a leak in the Evaporative Emission Control (EVAP) system, and the system can’t maintain pressure. The EVAP system usually consists of ...Dec 5, 2019 · I have 2012 Chevy Equinox 2.4, I had a P0420 and I changed the Converter 3 times with both 02 sensors, and 7-10 days later the light comes on. Any ideas to what it could be causing it. Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about? Engine light, and gives the codes p0420 Jun 30, 2015 · P0420 - 2010 Chevy Equinox LTZ 6CY - O2 BANK LOCATIONS. I am getting a P0420 - Catalyst System Efficiency Below Threshold (Bank 1). The 2010 6CY has two converters that come off the engine. One on the back of the engine towards the rear of the car and one on the front of the engine that comes off the front of the car. Buy Now!New O2 Oxygen Sensor from 1AAuto.com http://1aau.to/ia/WKEOS001541A Auto shows you how to remove, install, change or replace an oxygen O2 sensor. Thi...We have a 2010 Equinox 3.0 with ~65,000miles on it. Recently the CEL came on so I had the codes checked and was told it's a P0017 (CKP/CMP timing misalignment-ECM detected the crank sensor is not aligned with the cam sensor.) and a P0420 (Catalyst efficiency low-bank 1.) Was also told the P0017 probably caused the triggering of the P0420.I have a 2010 Chevy equinox I trying to repair it has a lot of trouble codes and I understand they can all be related I have mechanical experience can you tell me which codes are the most important in ... P0315,P228D, P0089, P0315, P0335,P0420, just had the motor replaced, ... I have a 2010 equinox, just replaced the engine with a 2011 equinox ...

P0172 is triggered by the engine bank 1 “upstream” oxygen sensor and P0175 is triggered by the engine bank 2 “upstream” oxygen sensor. The oxygen sensor alerts your system when the condition is too rich meaning there’s too much fuel int the exhaust stream or too little oxygen in the exhaust stream. The symptoms and causes will help ...Automotive Consultant. Vocational, Technical or Tra... 26,239 satisfied customers. 2010 chevy equinox 2.4l codes p0011 and p0014, engine stalls at idle and at stop lights, also rattles at start up - Answered by a verified Chevy Mechanic.4 de ago. de 2022 ... OBD Code P0420 is an extremely common indicator of an issue with the operating efficiency of your Chevrolet Equinox's catalytic converter, ...I have 2012 Chevy Equinox 2.4, I had a P0420 and I changed the Converter 3 times with both 02 sensors, and 7-10 days later the light comes on. Any ideas to what it could be causing it ... I have a 2010 Chevy equinox with a 2.4 L my check engine light came on today so I hooked up my snap on scanner and these are the three codes that …Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by the vehicle. Most Likely Repair And Cost For Chevrolet Equinox P0420 By Year The chart below shows the most likely repair and cost range for Equinoxs for all of the years that FIXD has data on.How to diagnose code P0420 on a Chevrolet Equinox. 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 exhaust ...If your Chevy Equinox is displaying the code P0420, it means that the catalytic converter on your vehicle is not functioning properly. The catalytic converter is a key component of your vehicle's emissions system, and when it's not working correctly, it can cause increased pollution and damage to your engine.

If your vehicle does not have oxygen issue, but the code is still on scanner, it might be the wiring system that cannot read the sensor or give bad signal. Another possibility is the exhaust leak. It is definitely something you will recognize while driving. The leak creates imbalanced exhaust functionality. Finding the exact cause will take time.When the ECU detects a lower boost than what’s considered in the normal range, it will set the P0299 DTC. This code causes the Check Engine Light to come on, indicating that there’s a problem. When a turbo or supercharger is operating normally, the air going to the motor is pressurized. It’s how the engine can output more power for its size.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]. GET A QUOTE. Common signs of a faulty VVT solenoid include the Check Engine Light coming on, dirty engine oil, rough engine idle, and decreased fuel economy.Code P0455 may appear on some Chevy vehicles. On a 2010 Chevrolet Silverado 1500 LS 5.3L V8, for example, this DTC is set when “the EVAP system is not able to achieve or maintain a calibrated level of vacuum within a set amount of time.” The code appears in a 2010 Chevrolet Silverado 1500 5.3L V8 because of the following conditions:Aug 18, 2023 · Code P0420 Description. The Engine Control Module (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 sensor, sends pre-catalyst information to the ECM. The second sensor, the heated oxygen sensor, sends post-catalyst information to the ECM.

Choctaw recipes.

If your Chevy Equinox is displaying the code P0420, it means that the catalytic converter on your vehicle is not functioning properly. The catalytic converter is a key component of your vehicle's emissions system, and when it's not working correctly, it can cause increased pollution and damage to your engine.RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.Nov 25, 2022 · If you’re experiencing a p0420 Chevy Equinox engine code, there are a couple of common causes. The oxygen sensor and the converter are often the culprit, but there are also other causes. Misaligned exhaust functionality or a faulty catalytic converter can also be to blame. The P0325 code may cause some alarm, but it’s not normally a big deal. Instead, this code is telling you that there’s something either wrong with the knock sensor or the wiring to the sensor. In rare cases, there could be a fault with the PCM, but this doesn’t happen often, and when it does, there are generally other symptoms.My equinox is throwing a code for either the catalytic. exhaust engine is cold. Make sure to include the exhaust manifold when checking for leaks/cracks. If these check ok, then most commonly, the Converter is "on it's way out" and will need replacement in the near future. Keep in mind, you will need a replacement converter that meets specs. Mar 29, 2022 · Multiple codes, diagnosis in different directions, sad ending.

What Does Code P0420 Mean? OBD II fault code P0420 is a generic code that is defined as “Catalyst System Efficiency Below Threshold (Bank 1)”, and is set when the PCM (Powertrain Control Module) detects …Diagnosing and repairing a P0017 code in a Chevy Equinox requires the use of a specialized diagnostic tool to read the fault code and determine the specific cause. A P0017 code indicates that the crankshaft and camshaft position sensors are not in sync. The most common cause of this code is a faulty camshaft position sensor, but other causes ...D. dell30rb Discussion starter · Apr 2, 2018. 2011 Equinox 2.4L is throwing code P0420 repeatedly. Runs fine and no other codes. New o2 sensors. Has 185,000 miles on it and now on engine #3 so its time to replace. Those engines have burned a lot of oil as we all know and i'm sure the cat is coked up with junk.P0017 on Chevy vehicles translates to Crankshaft Position – Exhaust Camshaft Position Not Plausible. Despite the varying names given by respective manufacturers, P0017 code simply means that the PCM believes the difference between the crankshaft position and the camshaft position exceeds specification.The solution for P0089 on Audi vehicles may not work the same for the P0089 on a Chevy Equinox. If you plan on fixing the issue yourself, you should consult the appropriate repair manual or database. However, if you’re unsure about how the whole repair process goes, going to a certified mechanic or technician is highly recommended.Code P0172 may appear on some Chevy vehicles. On a 2016 Chevrolet Equinox L 2.4L L4, for example, this DTC is set if the average long term fuel trim weighted average value is greater or less than a calibrated value. To learn more about long and short term fuel trim, read our detailed explanation here. What Does “Bank 1” Mean in P0172?Have a P0420 code on a 2010 equinox 2.4l 4cyl. Just measured back pressure at at upstream sensor port it appears OK--at idle its around 1.25psi -1.5psi and when at 2000-2500 rpm it stays at the same reading.2) GM 2.4L Ecotec High Oil Consumption. As with timing chain issues, high oil consumption seems to primarily affect Chevy Equinox and Malibu models. However, this is a potential issue in many different years and models. It’s a common and troubling enough issue that high oil consumption led to some lawsuits.

Follow my Builds / Projects: www.youtube.com/c/patrickkasilag?sub_confirmation=1Quick video on how to change bank 1 sensor 1 oxygen sensor on a 2015 chevy eq...

Jun 4, 2015 · I did. But I could get no one on any Equinox forum to help me interpret my O2 sensor readings. I tried an O2 sensor change just to see if it would help, but that did not work. Everything that I have read has told me that A P0420 code 99 percent of the time means bad converter. In this case, it was a bad one. I ended up getting the converter ... According to the GM service bulletin, in some 2011-2013 Chevy, Buick and Cadillac vehicles the code P0442 might be caused by the leaking EVAP Vent Solenoid (CVS). The vent solenoid must be tested under vacuum …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. P2097 code definition P2097 is a general OBD-II diagnostic trouble code that indicates a fault with the post catalyst fuel trim system being too rich in bank 1.2010 chevy equinox 2.4l getting codes p0089 and p228d. desired fuel rail pressure on the scanner is 3mpa and the acutal fuel rail pressure is 15mpa. ... 8,661 satisfied customers. I have a 2011 chevy equinox with the 2.4l. I have codes. I have a 2011 chevy equinox with the 2.4l. I have codes p0420, p0455, p0013. I know what these codes mean, ...JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. 2012 Chevrolet Equinox 135,000miles 2.4L P0420 Keeps coming back. I have an up to date snap scanner and can read any - Answered by a verified Chevy Mechanic.How to diagnose code P0420 on a Chevrolet Equinox. 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 exhaust ...A few days later I noticed the P0420 light on, but the shop who did the timing chain said I had a cracked exhaust manifold and likely a clogged catalytic converter due to rich running engine due to timing issues. ... 2012 Chevy equinox 2.4L at about 135K miles threw a fan belt about 6 months ago on a road trip. Limped it to a dealership for ...What Does Code P0128 Mean? Chevrolet P0128 definition: Coolant Thermostat Temperature Below Regulating Temperature. Issue Severity: LOW– Continued driving for a short period of time is okay. Repair Urgency: Get this code fixed withing the next month to prevent the potential for overheating. Diagnosis: It is important to complete the …

Dr john head.

Texas ku basketball game.

The MAP should indicate barometric pressure when the engine is not running, the MAF about 2-6 grams/sec at idle and operating temp. When P0171 is set, whatever caused it can effect the cat and set P0420, so ignore that for now. 2010 Equinox LT V6 AWD. Reply.Oxygen sensors, also known as O2 sensors, became mandatory in the mid-1900s to reduce vehicle emissions. They detect the amount of oxygen in the exhaust system and rely on built-in heating elements to reach operating temperatures. The P0053 code indicates a potential problem with the bank 1 sensor 1 oxygen sensor’s heater circuit.Dec 16, 2013 · We have a 2010 Equinox 3.0 with ~65,000miles on it. Recently the CEL came on so I had the codes checked and was told it's a P0017 (CKP/CMP timing misalignment-ECM detected the crank sensor is not aligned with the cam sensor.) and a P0420 (Catalyst efficiency low-bank 1.) Was also told the P0017 probably caused the triggering of the P0420. The vehicle ran fine until a week after the P0420 code returned and I noticed when I drive near a building, like a drive-through bank stall that I can hear the engine idling with a grumbly tone. ... Chevy Equinox, and Cadillac SRX owners and enthusiasts. Come join the discussion about modifications, classifieds, troubleshooting, maintenance ...Apr 25, 2015 · 1999 White C5 Coupe · #2 · Apr 25, 2015. gos333 said: 2011 Equinox, AWD, 107,000 miles has P0420 MIL code needs new cat converter. Dealer wants 1600.00.... reason the cat went out was excessive oil consumption which clogged the ceramic inside of the cat, evidently you have to remove the transfer case to replace the cat also. The P0325 code may cause some alarm, but it’s not normally a big deal. Instead, this code is telling you that there’s something either wrong with the knock sensor or the wiring to the sensor. In rare cases, there could be a fault with the PCM, but this doesn’t happen often, and when it does, there are generally other symptoms.A knock sensor is a one-wire or two-wire sensor mounted on a cylinder block, and it detects engine knocking. “Knock sensor 1” in this code refers to the first sensor (if there are two), while “bank 1” refers to the side of the engine with cylinder #1.My equinox is throwing a code for either the catalytic. exhaust engine is cold. Make sure to include the exhaust manifold when checking for leaks/cracks. If these check ok, then most commonly, the Converter is "on it's way out" and will need replacement in the near future. Keep in mind, you will need a replacement converter that meets specs.If the light turns off, there’s probably nothing wrong with the StabiliTrak system. If the light remains on, continue with the following steps. Shut down the vehicle. Walk away and do something else for about 15 minutes. This time gives the system a chance to reset. Restart the vehicle. ….

Have a P0420 code on a 2010 equinox 2.4l 4cyl. Just measured back pressure at at upstream sensor port it appears OK--at idle its around 1.25psi -1.5psi and when at 2000-2500 rpm it stays at the same reading. Is it possibly the down stream sensor that needs checked? If so, should the pressure still be under 3psi?In this video I walk you through all the steps of replacing the catalytic converter on a 2011 Chevy Equinox. The same procedure can be used for various years...My equinox is throwing a code for either the catalytic. exhaust engine is cold. Make sure to include the exhaust manifold when checking for leaks/cracks. If these check ok, then most commonly, the Converter is "on it's way out" and will need replacement in the near future. Keep in mind, you will need a replacement converter that meets specs.We have a 2010 Equinox 3.0 with ~65,000miles on it. Recently the CEL came on so I had the codes checked and was told it's a P0017 (CKP/CMP timing misalignment-ECM detected the crank sensor is not aligned with the cam sensor.) and a P0420 (Catalyst efficiency low-bank 1.) Was also told the P0017 probably caused the triggering of the P0420.Chevrolet Equinox P0011 definition: Intake Camshaft Timing – Over-Advanced Bank 1. Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid damage to multiple internal engine components. Diagnosis: This trouble code severely impacts the drivability of your vehicle.Mar 23, 2021 · Some details about my traverse.. 2010 LT AWD, 258,751 miles. same engine and transmission. added tow package many years ago (bigger tranny cooler, upgraded fuse block tow wiring harness) I have drained and filled tranny handful of times since then.. I believe changing tranny fluid every year is in order for these cars but the experts may differ. Here I demonstrate how I replace my VVT Intake Solenoid on my 2012 equinox. Super easy process. Bought the OEM part on Amazon for much less than an auto part...Nov 4, 2015 · P0300 and p0420 on a 2011 Chevy equinox 2.4L LS. 105000. plugs, coils, crank sensor and both o2s have been replaced and well as exhaust manifold and ECU … read more 2010 chevy equinox p0420, P0420 Chevy Equinox 2010. If you own a Chevy Equinox from the 2010 model year, then you may be familiar with the P0420 error code. This code is associated with a problem in the catalytic converter, and it can be a real headache to deal with., What Does Chevy Code P0420 Mean? Chevrolet 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., 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 …, Poor engine performance can be a sign of a logged P013E code. How to Diagnose the P013E Code. If you have plenty of DIY experience fixing vehicles, you can try diagnosing P013E yourself by using a scan tool record utility; otherwise, it’s best to let a professional handle it.. Code P013E should be resolved immediately to avoid complications., Code P0420 Description. The Engine Control Module (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 sensor, sends pre-catalyst information to the ECM. The second sensor, the heated oxygen sensor, sends post-catalyst information to the ECM., Similar threads ; B · 2016 Catalytic Converter · bmarshall3 ; S · 2010 equinox v6 timing chain kit · Slow1979 ; C · 2014 Chevy Equinox-Catalytic Converter changed- ..., Oct 21, 2016 · Technician. automotive technology. 157 satisfied customers. 2014 2.4l chevy equinox. Wifes check engine light came on. 2014 2.4l chevy equinox. Wifes check engine light came on. Codes from diagnostic tool: P0138 and P0140. Research suggests Bad O2 … read more. , My equinox is throwing a code for either the catalytic. exhaust engine is cold. Make sure to include the exhaust manifold when checking for leaks/cracks. If these check ok, then most commonly, the Converter is "on it's way out" and will need replacement in the near future. Keep in mind, you will need a replacement converter that meets specs. , In this video I walk you through all the steps of replacing the catalytic converter on a 2011 Chevy Equinox. The same procedure can be used for various years..., The P0420 code went away, but comes back periodically after I clear it and I have the P0013 and P0014 codes all the time. I dont notice the car having any trouble driving but it does burn oil which is apparently a common issue with the engine in the Equinox., Feb 21, 2017 · 2010 chevy equinox 2.4l getting codes p0089 and p228d. desired fuel rail pressure on the scanner is 3mpa and the acutal fuel rail pressure is 15mpa. Also theres a chirp type noise that sounds to be co … , Jul 18, 2018 · The P0171 code is thrown when the bank one sensor one O2 sensor reports that your Equinox’s engine is running lean. The sensor on or right after the exhaust manifold is typically the sensor that reports the lean condition. If it is malfunctioning, it can cause a false P0171 code. , The P0008 code indicates an issue concerning the position of the camshaft and crankshaft. In an internal combustion engine, the timing between these two is crucial as it helps determine the efficiency of the engine.If your OBD-II scanner registers this code, you must address it immediately., I have 2012 Chevy Equinox 2.4, I had a P0420 and I changed the Converter 3 times with both 02 sensors, and 7-10 days later the light comes on. Any ideas to what it could be causing it. Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about? Engine light, and gives the codes p0420, Dec 30, 2022 · Chevrolet Equinox P0016 definition: The correlation of the camshaft and crankshaft positions on bank 1 is incorrect based on the intake camshaft position sensor. Repair Urgency: Fix this code immediately (same day if possible) to avoid internal engine damage. Diagnosis: This trouble code can cause the vehicle to be hard to start and run rough. , An older Chevy Equinox, something from the 2010 or 2011 model year with about 150,000 miles, might run $4,000 to $5,000. But prices will increase considerably for something much newer. Data from CoPilot …, Chevy Equinox P0420: Meaning, Causes, + How to Fix. This page is meant to help you troubleshoot the Chevy Equinox 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., D. dell30rb Discussion starter · Apr 2, 2018. 2011 Equinox 2.4L is throwing code P0420 repeatedly. Runs fine and no other codes. New o2 sensors. Has 185,000 miles on it and now on engine #3 so its time to replace. Those engines have burned a lot of oil as we all know and i'm sure the cat is coked up with junk., 1 de jan. de 2019 ... Hey all! Looking for some help with my 2010 Chevrolet Equinox V6. It's throwing 3 codes: P0420, P0430 and P0496. I believe P0420 and P0430 ..., 1999 White C5 Coupe · #2 · Apr 25, 2015. gos333 said: 2011 Equinox, AWD, 107,000 miles has P0420 MIL code needs new cat converter. Dealer wants 1600.00.... reason the cat went out was excessive oil consumption which clogged the ceramic inside of the cat, evidently you have to remove the transfer case to replace the cat also., Sep 22, 2023 · Subaru & Honda. If you find a P0420 code in your Subaru or Honda, it’s most likely the catalytic converter to blame. It can also be caused by an exhaust leak or a bad oxygen sensor. Check for vacuum leaks or other fuel mixture-related engine codes. Check for any exhaust leaks before the catalytic converter. , The code P0420 for your 2.4 L engine is for the after the catalyst O2 sensor. Your vehicle has only two O2 sensors. One is in manifold before the catalyst and the other is after the catalyst. The code can be from a defective sensor or catalytic convertor. The system should have further tests done to make sure the correct part is replaced before ..., My wife's 2012 chevy equinox with the 2.4l ecotec engine. The PCV valve was completely clogged not letting the gases circulate to the air intake, and trappin..., SOURCE: 2001 express p0420 p0174 engine codes , help diagnose ! 0174 is system too lean, right bank. 0420 is catalyst sytem efficiency below threshold, left bank. fix would be either oxygen sensor or catalytic converter replacement possibly would need both. note: this veh would possibly have up to 4 oxygen sensors, but cause of problem would …, Equinox / 2014 / Code P0420; Code P0420. 2014 Chevrolet Equinox. Asked by Visitor in Troy, NY on . January 12, 2020. ... What seals needed for timing chain and gears 2010 equinox 2.4; 2014 Chevrolet Equinox Estimates. Brake Master Cylinder Replacement ($284 - $434) in Mokena, IL. Find a Shop., P0302 in the Chevy Equinox is a common OBD II trouble code. It indicates that your vehicle’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your Equinox’s check engine light to come on, you shouldn’t drive your vehicle at all., Sep 22, 2023 · Subaru & Honda. If you find a P0420 code in your Subaru or Honda, it’s most likely the catalytic converter to blame. It can also be caused by an exhaust leak or a bad oxygen sensor. Check for vacuum leaks or other fuel mixture-related engine codes. Check for any exhaust leaks before the catalytic converter. , This page is taken from our digital online manual 38040 for the 2005-17 Chevrolet Equinox, 2010-17 GMC Terrain, and 2006-09 Pontiac Torrent, 2WD or 4WD with 4 cylinder or V6 engines. The oxygen (O2) sensor informs the engine computer how much free oxygen is in the exhaust, allowing it to judge exactly how much fuel to provide for best power, …, Dec 2, 2020 · You may ever experience troubleshooting, such as P0420 Chevy equinox. It happens after your car is connected to the scanner. The code appears to indicate there is an issue related to catalyst system efficiency. Based on this result, it seems your issue comes from the catalytic converter. It is capable to scrub pollution, so the emission is free ... , Jun 30, 2015 · P0420 - 2010 Chevy Equinox LTZ 6CY - O2 BANK LOCATIONS. I am getting a P0420 - Catalyst System Efficiency Below Threshold (Bank 1). The 2010 6CY has two converters that come off the engine. One on the back of the engine towards the rear of the car and one on the front of the engine that comes off the front of the car. , P0135 is a very common OBDII code that occurs in the Chevy Equinox. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: P0135: Heated Oxygen Sensor → Sensor Heater Circuit Malfunction → Bank 1, Sensor 1. The purpose of the heated element in the oxygen sensor is to ..., Shop for the best Catalytic Converter for your 2010 Chevrolet Equinox, and you can place your order online and pick up for free at your local O'Reilly Auto ..., Diagnosing the error code P0420 on a Chevy Equinox (2011)Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasi...