2006 honda pilot p0420

The code P0420 stands for Catalyst System Efficiency Below Threshold. This means that the oxygen sensors in your exhaust system have detected that the catalytic converter is not working as efficiently as it should. It is most commonly caused by a faulty catalytic converter that a P0420 code is displayed. The catalytic converter is a device that ...

May 16, 2022 ... Fixed! 3rd Gen Honda Pilot LX EX EXL Elite AWD DTC P0420 Engine Emission System Problem Error Code Product Info: ...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.Mar 31, 2024 ... My 2011 Honda Pilot has been throwing the P0420/P0430 catalyst inefficient code. There could be many causes of this.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.Dec 27, 2022 · 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 P0420 is a ...

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 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 ...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 ...Feb 4, 2013 · So our 06 Pilot with 162k miles on it threw a couple interesting codes this weekend. P0420 - yikes. and P2101 - Throttle actuator Control Motor Circuit Range/ Performance. and P 2176 Throttle Actuator Control System - Idle position not learned. The VTM 4 as well as 3 other lights on the dash and the Pilot slipping into limp mode.The wife's 2006 Pilot has an on-again-off-again series of codes popping up on the dash: P0300, P0301, P0302, P0303, P0304, P0305, ... 2006 Honda Pilot 1971 GMC 383 longbed Jalop 1963 Ford Bread Sled skateboard middlemanskateboards.com . Save Share. Like. Sort by Oldest firstThe bank 1 version of this code is P0420. Honda Pilot P0430: Symptoms. The P0430 code in a Honda Pilot will often be thrown if one of your vehicle’s oxygen …Used 2006 Honda Pilot pricing starts at $4,543 for the Pilot LX Sport Utility 4D, which had a starting MSRP of $28,745 when new. The range-topping 2006 Pilot EX-L Sport Utility 4D starts at $5,736 ...

208 posts · Joined 2012. #1 · Feb 24, 2015. Got these two codes driving home from work today. P0141 is downstream oxygen sensor heater circuit malfunction. P0420 is catalyst system efficiency below threshold. A few questions.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 …Mar 21, 2013 · Hey folks. Same boat here. Wife's car has 135,000 miles and popping a P0420 and P0430 code. I want to change the 02 sensors first before going for the full cats, but I am a little confused. On NGK's website it shows 2 O2 sensors for this car (2005 Pilot). The #24255 Downstream Rear and #24259 Downstream front. On the Honda Schematics is shows;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 …2006 Honda Pilot Engine Code P0420. 04 honda pilot p0740 Honda pilot p0302: misfire detected Honda p0300 p0305 codes. SOLVED: Check engine on 2012 Honda Pilot. Code is P0430. - Fixya. Honda pilot cylinder 2004 misfire p0304 repair ad 2004 honda pilot p0304 misfire cylinder 4 diagnosis and repair Honda pilot 2005 p0420 code 4ba9 924e …

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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.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.How to clean or replace a PCV valve in a 2006 Honda Pilot.SKIP INTRO: 0:150:27 Location of PCV Valve0:51 Removing the PCV1:03 Cleaning the PCV1:41 Reinsertin...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.

3 posts · Joined 2013. #1 · Feb 4, 2013. So our 06 Pilot with 162k miles on it threw a couple interesting codes this weekend. P0420 - yikes. and P2101 - Throttle actuator Control Motor Circuit Range/ Performance. and P 2176 Throttle Actuator Control System - Idle position not learned. The VTM 4 as well as 3 other lights on the dash and the ...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 …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 ...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.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 ...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 …I believe I have finally resolved this. I ended up replacing most of the part in the EVAP system - not impressed with my trouble shooting skills, but believe finally resolved. Started at 198,000 miles with the codes P0497 and P145C - vehicle was new to me so had limited history. Replaced gas cap - codes still present.Good morning, Quartz readers! Good morning, Quartz readers! France celebrates Bastille Day. This year’s military parade, which marks the 100th anniversary of America’s entry into W...Jun 19, 2023 · Definition meaning and fixes for a Honda P0420: Catalyst System Efficiency Below Threshold Bank 1Even 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.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 ...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 ...

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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.Sep 22, 2015 · 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.O. Origover220k Discussion starter. 12 posts · Joined 2019. #1 · Jan 4, 2020. So with 250,000 miles I got the infamous P0420 code. I figured for 100 I’ll throw in another converter on it and then I ordered a sensor to go in the converter. My light still came on. Frustrated I researched and didn’t realize there was an upstream sensor.Code Definition. P0420 – Catalyst System Efficiency Below Threshold (Bank 1) What Causes A P0420 Code? The most common cause of the P0420 code is a faulty catalytic converter. It can also be caused by a faulty oxygen sensor, exhaust system leak, intake leak, or incorrect placement of the catalytic converter.Catalyst System Efficiency Below Threshold (Bank 1) is the meaning of the P0420 code. This code indicates that Catalyst System Efficiency (Bank 2) is below the threshold (P0430). The number one cylinder is located on the bank 1 side of the engine. In Bank 2, you will find the opposite side of the engine. P0420 and P0430 both showed up and are ...The most common fix for P0420 in the Honda Element is a new catalytic converter, followed by an O2 sensor replacement. Before taking your Element 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 Honda Element: 1. Check for Other Codes.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...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.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.Jul 25, 2023 · The Honda Pilot P0420 code refers to a diagnostic trouble code (DTC) that indicates a problem with the catalytic converter efficiency of a 2006 Honda Pilot. When this code is triggered, it means that the catalytic converter is not functioning as efficiently as it should be in converting harmful gases into less harmful ones.

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You should be able to hear it easily when looking underneath your CR-V. An exhaust leak can cause P0420 since it causes exhaust gasses to escape unmetered. If your vehicle doesn’t have an exhaust leak, you’ll need to test the O2 sensors and/or catalytic converter. 3. Test the Oxygen Sensors. Typical Oxygen Sensor.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.Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/63/U/fog-light-assemblies1A Auto Shows you how to install, repair, fix, change, or replace a broken, d...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.This page is meant to help you troubleshoot the Honda Ridgeline 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. Table1. 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.P0420 on a honda pilot : r/justrolledintotheshop2006 honda accord code po420 P0043 code: ho2s heater control circuit low (bank 1 sensor 3)Honda p0420 sensor code accord catalytic converter 1998 ex connection rear graphe random.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.I believe I have finally resolved this. I ended up replacing most of the part in the EVAP system - not impressed with my trouble shooting skills, but believe finally resolved. Started at 198,000 miles with the codes P0497 and P145C - vehicle was new to me so had limited history. Replaced gas cap - codes still present.In simpler terms, the P0420 code means a problem with the exhaust system's ability to reduce emissions, which can lead to increased pollution and … ….

https://www.ktecgarage.comDiscord: https://discord.com/channels/1219270237908893779/1219270238420340777I will be using aftermarket direct fit parts from Dorm...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 ...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 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 …Cars that have timing chains instead of timing belts include the 2006 to 2016 Honda Civic, 2003 to 2016 Honda CR-V and Accord 2.4 and 2003 to 2011 Honda Element. Timing chains and ...So our 06 Pilot with 162k miles on it threw a couple interesting codes this weekend. P0420 - yikes. and P2101 - Throttle actuator Control Motor Circuit Range/ Performance. and P 2176 Throttle Actuator Control System - Idle position not learned. The VTM 4 as well as 3 other lights on the dash and the Pilot slipping into limp mode.I have 2009 Honda Pilot EX-L. Whenever I fill up the tank, the code P0420 shows up. When fuel tank is bellow half, the code disappears. I have been able to duplicate this scenario multiple time. And no, it is not the fuel cap. However, when i drive long distance, 200 to 300 miles, the code does not show up on full tank.Mar 21, 2013 · Hey folks. Same boat here. Wife's car has 135,000 miles and popping a P0420 and P0430 code. I want to change the 02 sensors first before going for the full cats, but I am a little confused. On NGK's website it shows 2 O2 sensors for this car (2005 Pilot). The #24255 Downstream Rear and #24259 Downstream front. On the Honda Schematics is shows;2006 Honda Pilot P0420 Code. 2006 honda pilot codes p0154 & p2247 Honda pilot Honda p0401. Something to check on higher mileage Pilot transmissions ( Code P0730. Honda pilot check engine light: q&a on p2138 code & app sensor Honda p0401 4b71 c068 af67 Pilot code honda intermittent 2010 2006. 2005 honda pilot catalytic converter … 2006 honda pilot p0420, If you’re in the market for a new Honda Pilot, finding the best price is likely at the top of your priority list. With so many dealerships and online platforms to choose from, it c..., O. Origover220k Discussion starter. 12 posts · Joined 2019. #1 · Jan 4, 2020. So with 250,000 miles I got the infamous P0420 code. I figured for 100 I’ll throw in another converter on it and then I ordered a sensor to go in the converter. My light still came on. Frustrated I researched and didn’t realize there was an upstream sensor., Honda Ridgeline P0420 Code Symptoms. The P0420 code in a Honda Ridgeline will often be thrown if one of your truck’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., I have 2009 Honda Pilot EX-L. Whenever I fill up the tank, the code P0420 shows up. When fuel tank is bellow half, the code disappears. I have been able to duplicate this scenario multiple time. And no, it is not the fuel cap. However, when i drive long distance, 200 to 300 miles, the code does not show up on full tank., 1. What exactly is P0420 Honda? P0420 Honda is a diagnostic trouble code signaling that the catalytic converter’s efficiency is below the expected threshold. It indicates the …, 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., Honda pilot stereo wiring diagram Pilot honda 2006 parts parting car 2006 honda pilot 3.5l v6 engine 2006 honda pilot 3.5 serpentine belt diagram. ... Honda pilot exhaust 2006 2005 pipe fuel parts diagram ex door electrical a00 2003 chamber gasket pre pge heater list 2006 honda pilot code p0420., In simpler terms, the P0420 code means a problem with the exhaust system's ability to reduce emissions, which can lead to increased pollution and …, 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..., P0420 could be caused by a bad O2 sensor, but it could also be caused by a misfiring cylinder, a leaky injector, etc. Basically, anything that could cause the computer to think the Bank 1 catalytic converter is …, 208 posts · Joined 2012. #1 · Feb 24, 2015. Got these two codes driving home from work today. P0141 is downstream oxygen sensor heater circuit malfunction. P0420 is catalyst system efficiency below threshold. A few questions., 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., Nov 12, 2013 · 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., 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 ..., 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..., Aug 14, 2023 · Put a fouler on the downstream sensor, you most likely won't see the P0420 again, especially if it only occasionally pops up: All they found was the P0420! 2007 Pilot EX-L 4wd - Nimbus Gray - 285k. 2007 Accord EX-L Sedan I4 5AT - Blue - 255k (totalled 12/23) replaced with 2006 CRV SE 160k., 07 honda pilot p0420 p0430 fix. Honda pilot p0430 p0420 fixHonda pilot p0171 / p0174 fast fix and diag tips 3.5l 2009 Used 2006 honda pilot 2wd ex-l at with res for sale in chandler az04 honda pilot p0740. Well, i have a honda pilot 2004. keep getting p0401 code, insufficientP0300 p0305 codes Pilot honda p0740P0730 honda pilot. Check Details, Honda / Pilot / 2006 / Po420; Po420. 2006 Honda Pilot. Asked by Visitor in Pottsville, PA on . September 13, 2018. Hey guys I have no no damn clue how I even got here to ask a question so I'm going to use this for my my help and I'm hoping that someone there can help me I have a 2006 Honda Pilot and it is the top-of-the-line model I ..., Code Tech Notes. As the code description implies, the P0420 code means that the vehicle's Powertrain Control Module (PCM) has detected that the Three-way Catalyst Converter is not working properly (it is not as efficient as the factory expects). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases, the Three-way ..., HONDA MOTOR CO. LTD.DL-NOTES 2022(22/25) (US438127AA08) - All master data, key figures and real-time diagram. The Honda Motor Co. Ltd.-Bond has a maturity date of 3/10/2025 and off..., I believe I have finally resolved this. I ended up replacing most of the part in the EVAP system - not impressed with my trouble shooting skills, but believe finally resolved. Started at 198,000 miles with the codes P0497 and P145C - vehicle was new to me so had limited history. Replaced gas cap - codes still present., 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., Battery Cables and Grounds - 2006 Honda PIlot Service Manual.pdf. 1.2 MB Views: 42. 2006 EX-L w/RES (black) ... The P0420/P0430 are usually when the catalytic converter is starting to lose some efficiency, if the code only comes up infrequently, especially in cold weather, ..., 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 ..., 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 ..., Possible Causes of a Honda P0420 Code Failed catalytic converter Faulty oxygen sensor Damaged wiring or loose connections Exhaust leak (not very common) …, The bank 1 version of this code is P0420. Honda Pilot P0430: Symptoms. The P0430 code in a Honda Pilot will often be thrown if one of your vehicle’s oxygen …, 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., The P0420 code in a Honda Civic indicates an issue with the catalytic converter system. It signifies that the catalytic converter is not functioning properly and may be unable to effectively reduce harmful emissions. This can lead to reduced fuel efficiency and potentially affect the vehicle’s performance., Oct 2, 2021 · 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., 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 believe I have finally resolved this. I ended up replacing most of the part in the EVAP system - not impressed with my trouble shooting skills, but believe finally resolved. Started at 198,000 miles with the codes P0497 and P145C - vehicle was new to me so had limited history. Replaced gas cap - codes still present., 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 ...