Step 1: Check every spark plug, especially the middle front one, to make sure that none are loose. Step 2: Reset the code and hope for the best. It will probably come back but it's worth a try. I had the same issue - it was a loose plug that overworked the catalytic converter.The P0420 code is a common issue many Honda Pilot owners may encounter. This code indicates that the vehicle's computer has detected a problem with the efficiency of the catalytic converter in bank 1. While this might sound daunting, diagnosing and fixing this issue can be straightforward with the right approach. This guide will walk you ...May 10, 2023 · Conclusion. The P0420 code is a generic diagnostic trouble code that indicates a problem with the catalytic converter's efficiency in the exhaust system. It can be caused by various issues, ranging from faulty oxygen sensors to engine misfires or fuel system issues. Suppose you suspect your Honda car has this code.Jan 18, 2024 ... #catalyticconverter #clogged #p0420 #p0430 #hondapilot #honda #pilot #shortsvideo #autopurlieu. 1.2K views · 3 weeks ago ...more. Auto Purlieu.07 honda pilot p0420 p0430 fix. Pilot honda codeHonda emissions p0430 Honda sensor pilot o2 2005 code p0420 replacementHonda code p0420. Honda pilot vsa p0302 light code trouble stands relatively common keepHad the check engine light come on in my 07 honda pilot, read code Honda code p0420Honda pilot p0302: misfire detected. Check …2006 honda pilot codes p0154 & p2247. P0420 code honda sensorHonda p0420 Pilot transmissionPo420 code honda ridgeline. Honda pilotHonda pilot 2005 p0420 code 4ba9 924e 31ea P0420 on a honda pilot : justrolledintotheshopWell, i have a honda pilot 2004. keep getting p0401 code, insufficient.The dreaded “Check Engine” light, an icon that often causes distress among car owners, can illuminate for numerous reasons. One common culprit behind this illumination, especially in Honda vehicles, is the diagnostic trouble code (DTC) P0420. If you’re facing this particular code and searching for clarity, we’re here to help. The P0420 code might …P0420 code honda sensorCode p0420 honda crv Honda pilot code p0401- egr insufficient flow problem fix (part12004 honda pilot mil check engine code p0740 solution. Honda pilot vsa p0302 light code trouble stands relatively common keepLocation pilot o2 pathfinder justanswer p0420 P0420 code: what sensor do i have to replace with p0420 code …2006 Honda Pilot EX-L P0420 Code. Jump to Latest Follow 4K views 1 reply 2 participants last post by 97trophy Nov 6, 2016. K. kkml Discussion starter 1 post · Joined 2016 Add to quote; Only show this user #1 · Nov 6, 2016. I bought my 2006 Pilot last November with 115,000 miles on it. It ...1. Check for any exhaust leaks: Inspect the entire exhaust system for leaks or damage that could cause the catalytic converter to malfunction. 2. Clean or replace the oxygen sensors: Faulty oxygen sensors can trigger the P0430 code. Clean the sensors first, and if that doesn’t solve the issue, consider replacing them. 3.Targeting the original post: I also had a similar issue with P0420 for the last six years. ... Honda Pilot 2006 LX 4WD J35A9, bought May 2015 with 108,000 Kms / 67,000 miles. Now 270,000 Kms/ 164,000 miles. Maintenance so far: New aftermarket rad, New OEM PCV valve, ...Feb 22, 2015 · P0430 Honda Catalyst System Efficiency Below Threshold Bank 2 OBDII Engine Light Trouble Code | Engine-Codes.com. However beautiful the strategy, you should occasionally look at the results. Sir Winston Churchill. Share. Like. Rocky. 16531 posts · Joined 2004. #3 · Feb 22, 2015. Plenty of threads to read using the search function: EG: http ...Bolt - 2006 Honda Odyssey - EX - Ocean Mist Metallic - 110k miles - Bought brand new in August 2006, never any major repairs, possibly the most reliable Odyssey on the road Victus - 2012 Honda Accord - EX-L V6 - Crystal Black Pearl - 37k miles - Bought used in July 2022 with 23k milesSep 15, 2021 · 2006 Honda pilot EX AWD Approx. 114k miles Short version: About a month ago, replaced all 6 spark plugs and the #2 coil pack after the plug failed and melted the coil pack. After about 100 miles of total driving since then, I got the CEL with P0420 yesterday.This page is meant to help you troubleshoot the Honda Pilot 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 ContentsMar 31, 2024 ... My 2011 Honda Pilot has been throwing the P0420/P0430 catalyst inefficient code. There could be many causes of this.JEFFro said: I own a 2006 PILOT EX with 77k miles, so today the car decided to throw the random misfire P0300, and cyl #1-#6 misfire codes (P0301-P0306) on the way home from work. I had a friend pulled the codes, reset it and haven't came back since (only drove 5miles). I searched google and found there is a service bulletin for the codes I ...P0420 code honda sensorCode p0420 honda crv Honda pilot code p0401- egr insufficient flow problem fix (part12004 honda pilot mil check engine code p0740 solution. Honda pilot vsa p0302 light code trouble stands relatively common keepLocation pilot o2 pathfinder justanswer p0420 P0420 code: what sensor do i have to replace with p0420 code …Well it was the 02 Sensor. I guess 221,000 was enough for it. Changed the upstream sensor on bank 1, on top nearest the firewall, no more P0420 check engine light code. Glad it was a easy fix because with that code the VCM stops working and I love my VCM, gives me that good milage.Definition meaning and fixes for a Honda P0420: Catalyst System Efficiency Below Threshold Bank 14 posts · Joined 2020. #1 · Aug 4, 2020. I just changed the alternator on my 2008 Odyssey and now I'm getting P0430 and P0420 code. The alternator change was pretty rough. I got an alternator from Advanced Auto that did not work, got another one from Advanced Auto that did not work, and then I got a Denso that did work (3rd time is the charm).Jan 27, 2012 · At 150K, I got a P0420 and when I cleared it, it came back in a few days. I bit the bullet and replaced the rear bank cat and the CEL never came back on after that. P0420 is for the rear bank cat (closest to firewall) and P0430 is for the front one (closest to radiator). The third cat on the exhaust pipe doesn't throw CELs.10 posts · Joined 2021. #3 · Oct 2, 2021. Hey there, had a similar thing come up with my ‘08 this past week. I pulled the codes and showed the P0420 (Failed Converter code) & a P0139 (Bank 1 sensor 2 which is front bank after converter O2 sensor code) in tandem. After speaking with an ex Honda tech he stated to start by replacing the O2 sensor.HMC: Get the latest Honda Motor stock price and detailed information including HMC news, historical charts and realtime prices. Indices Commodities Currencies StocksIf you’re in the market for a used Honda Pilot, buying directly from an owner can be a great way to save money. However, it’s important to approach this process with caution. Purch...Aug 21, 2012 · JEFFro said: I own a 2006 PILOT EX with 77k miles, so today the car decided to throw the random misfire P0300, and cyl #1-#6 misfire codes (P0301-P0306) on the way home from work. I had a friend pulled the codes, reset it and haven't came back since (only drove 5miles). I searched google and found there is a service bulletin for the codes I ...May 10, 2023 · Conclusion. The P0420 code is a generic diagnostic trouble code that indicates a problem with the catalytic converter's efficiency in the exhaust system. It can be caused by various issues, ranging from faulty oxygen sensors to engine misfires or fuel system issues. Suppose you suspect your Honda car has this code.Bank 2 sensor 2 is under the truck next to the radiator. The p0420 is "Catalyst System Efficiency Below Threshold". The P0420 code in a Honda Ridgeline will often be thrown one of your oxygen sensors are not functioning properly. Typically, the code will be triggered by the upstream oxygen sensor (before the converter). Either Bank 1 or 2.Looking for the top activities and stuff to do in Pilot Mountain, NC? Click this now to discover the BEST things to do in Pilot Mountain - AND GET FR Pilot Mountain is a small town...Honda Pilot 2009 with 217xxx miles on it. Both P0420 and P0430 codes got shown yesterday. Researched a lot and figured I should buy OBD2 scanner with live data to see the output of downstream O2 sensors. Bank 1 sensor had a perfect flat line around 700-ish mV (don't know why P0420 showed up). Bank 2 sensor fluctuated a bit (200 to 800 mV), not ...Solutions to Fix the P0420 Code in Your Honda Pilot. Now that you’ve diagnosed the root cause of the P0420 code in your Honda Pilot, it’s time to address the issue. Here’s a comprehensive guide to fixing the most common causes: 1. Replacing the Oxygen Sensor. If your diagnosis points to a faulty oxygen sensor, especially the downstream one:The P0420 engine code indicates the catalyst system efficiency is below the threshold (Bank 1). A P0420 code indicates a problem with the catalytic converter, more specifically. The purpose of the catalytic converter is to break down harmful pollutants created during the combustion cycle. By using fine platinum and gold meshes to filter exhaust ...I was occasionally getting both P0430 and P0420 codes, and the torn boot makes the most sense since you would not expect both front and back CATs ... modification DIY’s and discussion for the Honda Pilot SUV. Show Less . Full Forum Listing. Explore Our Forums. 2016-2022 Pilot General Discussions 2003-2008 Pilot 2012-2015 Pilot 2009 ...2006 Honda Pilot EX-L P0420 Code Jump to Latest Follow 4K views 1 reply 2 participants last post by 97trophy Nov 6, 20162006 honda pilot catalityc converter o2 sensor p0420. Jump to Latest Follow ... Hello, I’ve been getting a P0420 Emissions Efficiency Below Threshold (Bank 1) (or along those lines) on the OBD2 scanner with a persistent check engine light on.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. Bank 1 refers to the side of the engine that houses the number one cylinder.Honda Pilot 2006 LX 4WD J35A9, bought May 2015 with 108,000 Kms / 67,000 miles.Now 270,000 Kms/ 164,000 miles. Maintenance so far: New aftermarket rad, New OEM PCV valve, New Costco battery, New intake air duct, "Reman" Denso alternator from Amazon, cupro-nickel brake lines on all 4 corners, OEM accesssory belt tensioner pulley and idler pulley, Aisin TB kit, OEM front sway bar bushings, full ...Dec 7, 2016 · I may be missing something, but the 0420 code is the bank 1 code for cat system below threshold. The first sensor that I have read that needs to be replaced is the bank 1 downstream (after cat). Then the next is the upstream, but it isn't an 02 sensor but rather and A/F sensor I believe. It seems you are on the right track regardless.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Jan 27, 2012 · At 150K, I got a P0420 and when I cleared it, it came back in a few days. I bit the bullet and replaced the rear bank cat and the CEL never came back on after that. P0420 is for the rear bank cat (closest to firewall) and P0430 is for the front one (closest to radiator). The third cat on the exhaust pipe doesn't throw CELs.Dot Edge Discussion starter. 2 posts · Joined 2021. #1 · Nov 21, 2021. I have a 2008 Pilot with 247,000 miles. The P0420 code is on and indicates efficiency below Threshold Bank 1. I'd appreciate some guidance before I take it in to the shop. I've had the car since new and it's still going strong. Thanks. Sort by Oldest first.Jul 10, 2016 · The service records on my 2006 Pilot with 280K miles and the original catalytic converter indicate that the car had a p0420 code at around 250K miles. The car also misfired on all cylinders at that mileage.Changing out a catalytic converter on a 2008 Honda Pilot. Hope this will help others out the work and being aware of what is going on. Take screenshot of the...Research the 2006 Honda Pilot at Cars.com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory.Honda’s new goal is to achieve 100% EV sales in North America by 2040 as part of its broader target of being carbon neutral by 2050. CEO Toshihiro Mibe announced the planned shift ...Well this past weekend the check engine light came on. We got up that morning before sunrise (temperatures were around 20f) to head out and snap sunrise shots at a local spot. '07 Pilot AWD with ~170k miles. I let the car idle quite a while before we set out to warm up. We sat with the car idling quite a while during our shoot.2006 pilot ex with p0300-p0306 code Pilot code honda 2010 2006 intermittent How to fix code p0420 or lack of acceleration on honda cr-v and other 04 honda pilot p0740. ... Pilot 2010 intermittent code p0847Well, i have a honda pilot 2004. keep getting p0401 code, insufficient P0420 on a honda pilot : ...The ‘Check Engine’ light is activated when the powertrain control module (PCM) detects inconsistencies in the emission levels. If the post-converter oxygen levels are unusually high, it suggests the catalytic converter isn’t functioning correctly, triggering the P0420 code and lighting up the ‘Check Engine’ indicator. 3.Aug 3, 2017 · First thing to do is remove the EGR and use throttle body cleaner to clean EGR and ports. It's possible that something is affecting its range of movement. Then put it back on and drive it and see if the P0404 continues. If it continues, then the next step would be a wiring check.2011 Pilot EX-L w/ 135k miles. Just got the CEL and coded for P0420. I've done the spark plugs and timing belt within the last 2 years closer to 100k. Doing oil changes at 5k intervals but w/ Honda synthetic blend at dealers. I haven't been driving the car regularly for more than a week or so per month since April.Jun 4, 2020 · These codes can be a sign of a larger problem. Rich fuel condition, burning oil. Air Filter needs replacing, Mass Airflow sensor needs replacing or cleaned, foul out spark plug (s) etc. If this/these problem isn't solved, your new CATS can become clogged rather quickly. Thank you for the reply.2471 posts · Joined 2022. #5 · Jun 5, 2023. At 157k I would strongly consider replacing all O2 sensors. As mentioned above, use Denso or NTK sensors from RockAuto. P0420 can be caused by a lot of things, but typically it's either the O2 sensors or the cat going bad.Honda Ridgeline Truck Utility with Crossover DriveAbility & Versatility 2000 ACURA 3.2TL Navi NighthawkBlack Ebony FTM1/ FRED. Save Share. ... I have a similar issue with my 2006 Pilot and an erratic P0420 code that I haven't resolved yet. 2008 Ridgeline RTS Billet Silver Metallic in High Point, NC.Honda Pilot 2009 with 217xxx miles on it. Both P0420 and P0430 codes got shown yesterday. Researched a lot and figured I should buy OBD2 scanner with live data to see the output of downstream O2 sensors. Bank 1 sensor had a perfect flat line around 700-ish mV (don't know why P0420 showed up). Bank 2 sensor fluctuated a bit (200 to 800 …I may be missing something, but the 0420 code is the bank 1 code for cat system below threshold. The first sensor that I have read that needs to be replaced is the bank 1 downstream (after cat). Then the next is the upstream, but it isn't an 02 sensor but rather and A/F sensor I believe. It seems you are on the right track regardless.Symptoms of a P0420 code in a 2006 Honda Pilot. When the P0420 code is triggered in a 2006 Honda Pilot, the following symptoms might manifest: – Check Engine Light: The most apparent symptom is the illumination of the Check Engine Light on the dashboard. This serves as an indication that the ECU has detected a problem.Sep 20, 2018 · Honda CR-V P0420 Code Symptoms. The P0420 code in a Honda CR-V will often be thrown if one of your vehicle’s oxygen sensors is not functioning correctly. There are rarely drivability issues associated with P0420. For most people, the first sign that anything is wrong is the service engine soon light coming on.Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. The “Catalytic Converter Efficiency” Diagnostic Trouble Codes (DTCs) P0420 and P0430, are among the top 10 DTCs technicians face. And while the description might imply a failed converter, odds are the ultimate fault lies somewhere else.Honda Pilot 2006 LX 4WD J35A9, bought May 2015 with 108,000 Kms / 67,000 miles.Now 270,000 Kms/ 164,000 miles. Maintenance so far: New aftermarket rad, New OEM PCV valve, New Costco battery, New intake air duct, "Reman" Denso alternator from Amazon, cupro-nickel brake lines on all 4 corners, OEM accesssory belt tensioner pulley and idler pulley, Aisin TB kit, OEM front sway bar bushings, full ...Thanks to virtual reality, Honda is relying less on a car design practice that’s (literally) shaped auto making since the '30s. Honda is pulling away from a design practice that’s ...Jun 19, 2023 · Definition meaning and fixes for a Honda P0420: Catalyst System Efficiency Below Threshold Bank 1P0420 is for the rear bank cat (closest to firewall) and P0430 is for the front one (closest to radiator). ... modification DIY’s and discussion for the Honda Pilot SUV. Show Less . Full Forum Listing. Explore Our Forums. 2016-2022 Pilot General Discussions 2003-2008 Pilot 2012-2015 Pilot 2009-2011 Pilot. Top Contributors this Month2006 pilot ex with p0300-p0306 code Pilot code honda 2010 2006 intermittent How to fix code p0420 or lack of acceleration on honda cr-v and other 04 honda pilot p0740. ... Pilot 2010 intermittent code p0847Well, i have a honda pilot 2004. keep getting p0401 code, insufficient P0420 on a honda pilot : ...You can try replacing the 2nd o2 sensor on each bank and see if that helps, but in my experience when the p0420 or p0430 show up it needs a cat. 1. Reply. Bob_Loblaw16 • 2 yr. ago. I have both those codes on my Bimmer and I had my auto teacher read the live data from both upstream and downstream cats and he said it read how it should.56 posts · Joined 2018. #4 · Aug 25, 2020. P0420 is telling you that the catalytic converter is not working as efficiently as it should. It uses the output of the upstream and the downstream oxygen sensors to determine the efficiency.2006 Honda Pilot EX-L P0420 Code. Jump to Latest Follow 4K views 1 reply 2 participants last post by 97trophy Nov 6, 2016. K. kkml Discussion starter 1 post · Joined 2016 Add to quote; Only show this user #1 · Nov 6, 2016. I bought my 2006 Pilot last November with 115,000 miles on it. It ...2006 pilot ex with p0300-p0306 code. 2006 honda pilot codes p0154 & p2247How can i troubleshoot at p0420 code with a obd scanner that has live Well, i have a honda pilot 2004. keep getting p0401 code, insufficientTorque manifold ridgeline. Honda pilot code p0401- egr insufficient flow problem fix (part1Honda p0401 .Aug 3, 2017 · First thing to do is remove the EGR and use throttle body cleaner to clean EGR and ports. It's possible that something is affecting its range of movement. Then put it back on and drive it and see if the P0404 continues. If it continues, then the next step would be a wiring check.My brother has a 2006 Honda Pilot 3.4 AWD with a 220,000 miles. He recently got a check engine light on 2 days ago and I checked it. It's the dreaded P0420 ( the catalyst system …The catalytic converter is part of the exhaust system in Honda Pilot and its main purpose is to convert exhaust gases like carbon monoxide and hydrocarbons that are harmful to health and the environment ... If you see any fault code from P0420 to P0424 or from P0430 to P0434 in the OBD2 scanner, it indicates a problem with the ...The price of a new car is always a major consideration for potential buyers. When it comes to the new Honda Pilot, there are several factors that influence its price. Understanding...zroger73. Unless you put contaminated fuel in the vehicle, it is somewhat unlikely you have two defective catalytic converters or more than one defective sensor simultaneously. These two codes could also be a symptom of a different problem. If you feel like gambling, you can start throwing parts at it.2006 Honda Pilot AWD. Check engine light first came ON @ 91000, diagnosed code P0420 (catalyst B1 efficiency below treshhold) recommended replacement rear cat. converter at $ 790.00. While waiting for …2006 Honda Pilot EX-L P0420 Code Jump to Latest Follow 4K views 1 reply 2 participants last post by 97trophy Nov 6, 2016Apr 11, 2022 · Just wanted to update the thread. Prior to bringing in my 2012 EX-L with 200k in for the brakes, ATX and Diff Fluid changes and to trouble shoot recurring P0497 and P145C codes (See above thread for what has been done), I decided to make sure the gas cap was tight. It seemed to be but I turned it a couple "clicks".Honda Pilot 2011 -> Bought at 90,000 Miles. P0420 Catalyst System Efficiency Below Threshold (Bank 1). Tried Premium Gas -> STP Cleaners -> Erasing …After doing this treatment, my P0420 P0430 codes went away and my engine gained significant power. I’ve done this on both my 2008 Ody ... 2010 Odyssey EX RES Canadian. Philips HIR2 low beam bulbs, Pilot front brakes Z23 Evolution, KYB shocks, MOOG cargo ... 2006 Honda Odyssey EX-L, 310K Km 2005 Honda Odyssey EX-L, …2006 honda pilot p0420 codeOdyssey p0420 converter exl 5at oddy a00 rgl nav 2006 pilot ex with p0300-p0306 code04 honda pilot p0740. 2011 honda pilot p0420 codeQuestion for ya, can you send me diagram of where the pressure sensor Honda pilot check engine codesP0404 egr code and carbon buildup.2006 Honda pilot EX AWD Approx. 114k miles Short version: About a month ago, replaced all 6 spark plugs and the #2 coil pack after the plug failed and melted the coil pack. After about 100 miles of total driving since then, I got the CEL with P0420 yesterday.The meaning of the P0420 code on a Honda Accord is a “Catalyst System Efficiency Below Threshold (Bank 1).”. This code indicates that there is a potential issue with the catalytic converter in the exhaust system. It is important to have this issue addressed by a qualified mechanic as it can affect the vehicle’s emissions and overall ...P0456 Indicates that there is a small leak in the evaporative emission control system. It often appears with or is related to other codes, such as P0420, P0441, and very often P0440. P0456 is normally not an immediate threat to the driveability of your Pilot. Certainly, anytime the service engine soon light is on, it’s good to deal with it as ...The most common transmission problem associated with Honda Civics is transmission failure. Other issues include the transmission slipping and failing to engage. Transmission failur...I have a honda pilot that throws p0420's all winter long.. then around april/may, they go away until about october. but i live somewhere where 20 degree highs during the winter are common. I also have a nissan sentra doing the same thing. big surprise, both have front mounted cats, and will throw a code a couple mins into driving.Sadly, the P0420 came back on within 50 miles of clearing the code on first trip with highway speeds for more than 5 minutes. ... Honda Pilot 2006 LX 4WD J35A9 ...Dec 6, 2020 · My P0420 code would only show up in the cooler months of the year then go away entirely during the warmer months of the year. Engines protected with FilterMag, S-VCM, Top-Tier Fuel, Mobil1, Liqui Moly, Fram Ultra. 2013 Pilot EX-L@ 185k / 2007 Pilot EX-L@ 202k / 2012 Civic LX@ 173k / 2007 VTX 1300C@ 18k. Nail Grease.OBD II fault code P420 is a generic code that is defined as “Catalyst System Efficiency below Threshold Bank 1”, and is set when the PCM (Powertrain Control …I have a honda pilot that throws p0420's all winter long.. then around april/may, they go away until about october. but i live somewhere where 20 degree highs during the winter are common. I also have a nissan sentra doing the same thing. big surprise, both have front mounted cats, and will throw a code a couple mins into driving.Most Honda Odyssey owners have a same experience with this P0420 code. It is bank 1, that on the rear side of the engineer. There are two o2 sensors. One of the top that connected to top or before the catalytic converter. This one can be replaced without go under your van. Another one is at the bottom where you have to go underneath.When the thermostat goes bad in a Honda CRV, you risk causing serious damage to the engine if you , P0420 is the rear bank which is considered Bank 1. (pg 11-10 of th, DTC trouble codes 83-13, 61-23, 61-22 and P3497. I have a 2010 Ho, In this video, I discuss sequencing the removal of your catalytic converter at the front of the 3.5 L Honda V6. While , 1. What exactly is P0420 Honda? P0420 Honda is a di, My P0420 code would only show up in the cooler months of the year then go away entirely d, https://www.ktecgarage.comDiscord: https://discord.com/channels/1219270237908893779/1219270238420340777I will be , When the thermostat goes bad in a Honda CRV, you risk causing seri, Sep 20, 2018 · Honda Ridgeline P0420 Code Symptoms. The P, The most common fix for P0420 in the Honda S2000 is a new, Honda Pilot P0420 Code. Well, i have a honda pilot 2004. keep g, Oct 6, 2020 · Well it was the 02 Sensor. I guess 221,000 was enou, P0430 is for the the front bank (2) by the radiato, 1670 posts · Joined 2006. #3 · Jul 21, 2022. From your live data cap, Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/6, May 19, 2021 · Diagnostic trouble code(DTC) P0420, © 2024 Google LLC. In today's video Mike and Drew review the, 2007 honda pilot p0300 p0305Honda pilot p0171 / p0174 .