If I was to budget for a front catcan the front cat be the OEM Federal Standard version or does it have to be the OEM California Standard Cat since my car is PZEV? When I test with an OBD reader, I get the P0420 code. Unfortunately, I got the feeling from the dealership that I could really screw up the car if I dont replace it. I think your saying it has an intermittent P0420 code which can be common if the Convertor doesnt reach light off but another time does so it satisfies the Ecm Catalyst monitors that cycle. Testing now. My long time mechanic said it was now the p0402 code and replaced the o2 sensor. Ill even give you a good deal. Keep the fluids in good shape and that is the # 1 thing you can do to prolong the head gasket life. Someone really needs to look at the Data and figure it out, is really what needs to happen. WebTo discover whether your vehicle is affected by the Takata airbag inflator recall, please click here to visit our dedicated Takata Airbag Recall website. Anybody that has pulled the code just wants to replace the cat or sensors with theirs. The Cat is a Subaru part muffler isnt. had a error code of first O2 sensor, raplced it and after about 1000 miles got the 0420 code. Happened Sunday as I rounded a curve. SOA has already declined my warranty on the cat even though my warranty specifically reads PZEV warranty on 150,000 miles that are distributed to NY, and say that its not longer warranted since I am registered in Canada. Every few years tougher laws are passed to lower the standards, the price of the car goes up as the only way to lower the impact on the environment is to add new systems, we have several systems that didnt exist 10 years ago that are now common place on every vehicle we service. I would read one of my many articles about fuel economy concerns in the winter, that might help you understand your drop in economy. The catalytic converter was allegedly replaced at a Subaru dealership under recall. I have 83,938 miles on my car. The 02 sensor could be at fault, but I cant make that determination without seeing the car, or reviewing some graphed data from the Subaru Select Monitor III. Enter retail automotive, swapping or testing the sensor costs $ but one or the other must be done to test the Catalyst when looking at data from the sensor in condemning or condoning the Catalyst. Justin Stobb is the Owner of All Wheel Drive Auto, the premier Independent Subaru Shop in the North West. Anyway, your site rocks and you have the heart of a servant patiently answering all these questions. If ceriumis contaminated or the converter overheats,the converter is damaged. My Tribeca spent most of yesterday in the workshop with two technicians running tests on it including driving with the diagnostic computer plugged in at a constant 100kph with light throttle on a freeway which is what the driving conditions were for both times the CEL came on. There is a more accurate way to check if the catalytic converter is clogged in your Subaru Outback. 06 Outback manual trans. Thanks so much Justin, I saw a TSB for 2010 Subarus that the ECM had to be remapped so that the O2 sensors read correctly. Since it is payed off, instead of paying car payments for a new one I am setting aside monthly some car funds. vapor, nitrogen, and oxygen before the exhaust is expelled into the. EXHAUST, Engine, CP - OEM Subaru Part # 44620AA750. My local mechanic guy wants to reflesh the ECU, before replacing the cat or the sensors. What, if any, additional trouble shooting should I request on the fuel pressure regulator? Are there any symptoms to watch for h.g. Good idea? The engine will die if I dont put it in neutral and give it gas.Any ideas on what is going on? Thanks. The mechanic told me I needed a new catalytic converter, because a friend suggested I try using a spark plug non fouler on my rear O2 sensor to clear the code Didnt work. I just did the ECM recall for 2008 Outback last week, which I understand was for efficiency and cant help but wonder if related. Thats an indication that the combustion temperature with regular unleaded is not hot enough to let the converter get to the point of light off. Other makes are experiencing the exact same issue Subaru Is not alone in this and its he price of clean air. View details Hide details. It doesnt have three convertors, it has a single piece primary and secondary convertor assembly. I have a 99 outback with 144k miles. Full Diagram #44102B EXHAUST. Data from any sensor is only as good as the sensor it self! Like I keep stating, if instead of the price on the sticker when you buy the car instead stated how much to own over 10 years no one would buy it, this goes double for German cars. EXHAUST & MUFFLER '02MY-'03MY. There is no change in the performance. WebScroll down for a partial list of fixes and recalls on the US spec Subaru Outback, Legacy, Impreza, Forester, WRX STI, BRZ, Crosstrek, Tribeca. typically be part of a 100,000 mile check up? When I purchased my 05 Outback 2 years ago (then 125k, now 144k) the CEL was already on with an error code specific to the front O2 sensor (P0051 I think?). Performance and fuel economy are normal. I have no idea what is causing it. Theyve checked all the obvious thingsbrake rotors & pads, tire noise (a new set of tires did not change the noise), wheel housings and mud flaps contacting the wheel, etc.. russellpat Registered 2022 Outback Touring XT. I got my oil change at a shop in late February and mechanic that did it said its not too serious considering the car was smogged in Nov12 and turned the light off. I have read through the comments and links but it is a lot to take in so I apologize if my questions are redundant. Poor acceleration If they have tested and not just scanned and the Cats are at fault based on that price I would start with trying a fuel induction service and then driving it like you stole it for a week or two to try and breathe some life back into the Converter by burning out any carbon that has deposited it self in the Converter. Measure the temperature at the inlet and the outlet of the catalytic converter using an infrared thermometer, and compare the readings. Its possible after some spirited driving the Catalyst function could improve and light goes out, but under stand its a warning of things to come. I have a 2004 Legacy with the 420 code. You didnt mention if the Catalyst was replaced with a OE Subaru part or a aftermarket Catalyst? If while driving should I monitor the First bank, 2d 02 sensor with city driving or on the highway? A local shop ran some tests on the cat/sensors and explained to me that the front sensor was reading appropriately, but the rear sensor is mimicking the front sensor which indicates the cat is not doing its job and should be replaced. In my case, about a week before the code was tripped, I brought the car to my regular mechanic because we were smelling a fuel leak. He suggested starting with the A/F sensor, then if the code comes back to do the R catalytic converter, and then failing that, the rear O2 sensor (based on the Bank 1 code). You make an interesting point, its the cost for cleaner air and will only get worse newer cars have more Catalysts. This is certainly going to affect my thinking when it comes to possibly purchasing a used car in the future. Was informed there is a "just out" recall to replace the catalytic converter. brakes work ok when applied normally. But its not so good for the environment. If the catalytic converter efficiency degrades beyond an acceptable level, your vehicle may be releasing air pollutants that It would need to come from someone like us or a Subaru Dealer. My Mechanic wants to change out the whole thing. I have a 06 Legacy with 130,000 miles. Id drive the vehicle in a way that builds up a little heat before replacing the convertor. My wife drives the car now only for short, local trips and not much highway. I have a 2007 Forester, base model. I bought a fel-pro head gakest kit and changed all the gaskets on the way in as well. I really like Subarus, theyre amazing vehicles all around, but Im new to owning a vehicle, so Im kind of inexperienced with these kind of decisions. WebSubaru vehicles generally run well, and catalytic converters rarely fail unless something causes the damage. Unless the Catalyst is getting no where near the light off point? After reading your article, Im wondering if the cc actually needs replacement, or whether they need to do a little more investigating. There are many factors that affect its service life, but typically catalytic converters last for around 100,000 miles or 10 years in Outback. What can I check next? What do you think? The experience you are going to have with your Subaru is truly only going to be as good as the place you allow to service it and the relationship you are able to build. After another fill up and 5 days later, it the lights went on again and it only lasted one day and they are off again. Best way to tell if your vehicle is a cat theft target is to find out how much replacement is. My mechanic is telling me that both O2 sensors are operational which leaves him to believe that its the front Cat. I just changed the oil and decided to replace the PCV valve while I was in there. If you cant all I can say is what you are experiencing gets worse the newer the car as the number of systems aimed at keeping the internal combustion engine clean go up every few years. Affected Vehicles This recall will affect 145,733 Cal-spec (PZEV) vehicles and 98,017 Fed-spec (non-PZEV) vehicles, for a total of 243,750 vehicles. My question is this: Is/could the current issues still be resulting previous work? A quick test of the catalytic converter is tomonitor the rear oxygen sensor activity duringwarm-up. The P0420 may be related to what ever is causing the P0172, but I cant know that until I diagnosed. I cant comment on what you should expect to pay other than at my shop, we charge $96.00 to perform a Catalyst function test in conjunction with graphing data from the 02 sensors. Takata Airbag Inflator Recall. However, this is not always the case, as a bad oxygen sensor can also trigger catalytic converter codes. The only way to cut down on this is to put more precious metal in the Catalyst which would greatly raise the price. I had to demonstrate that they should have advised me of the recall during a timing belt replacement in 2008. Very good advice on P0420. I plan on putting another 70k on this car, so Im not opposed to necessary repairs/maintenance no matter the cost. Also, Im looking at replacement cats online and I see on some places that theres a rear cat, other places it just shows a front cat that connects with the exhause manifold, and in other places theres what they call direct fit replacements where it looks like a rear and front cat but only the midsection (not up to manifold). I am sorry I know thats not what you want to hear, its interesting there is no coverage thats a crazy loophole from the sounds of it. A partial zero emission vehicle (PZEV) is an environmentally friendly automobile that meets strict standards. From what I understood they are only going by OBD diagnostics. Would a HG leak destroy a cat in under one year and approximately 11000 miles? You cant know if the Cat is good or bad without testing it. I would make the head gasket repairs, then budget for the Subaru convertor when you can and maybe replace the front air fuel sensor and rear oxygen sensor at that time as well. Any thoughts you have would be a huge help. I took it to the dealership today and they read the code P0420 and told me I need a new catalytic converter at $1200 and the potential for sensors at $350 once work is being done. My front CV Boots on both sides need replacing. Reading out the fault codes using a diagnostic device is relatively reliable. The muffler shop says there are 4 cat conv (2 at engine, two inline mid exhaust). The point where therear oxygen sensor becomes a straight line iscalled the catalytic converter light off point. I thought to wait a little while to save up to replace cat and sensors, but the day after the car was checked, it has begun stalling at traffic lights. Driving at a high speed. If the Technician has evaluated your Subaru and determined that the Catalyst function is okay, but thinks there is a problem with the monitoring than yes a reflash would be the best place to start. Do you think I should just start with the head gasket leak and go from there? My 05 Impreza with less than 70k km on it threw the code a few months back without any other error codes. We were still in contact with the seller and he came and checked it out and code P0420 came up, but he said that it was nothing to be worried about and turned the light off. I checked the code and it was the P0420. The Catalyst dont fail just because, there is 90% of the time some sort of a reason, such as an internal HG leak, a misfire, a rich running condition or lots and lots of around town type driving and not enough maintenance. Theconverter is made of a honeycomb ceramicstructure held in place with a Nickel supportshell, all contained in a metal housing. These metals give the catalytic converter a 3-way operating characteristic that can changeCO, HC and N0x to inert gases like CO2. I have a few Questions to help educate myself of the safest rout to go. If you look at the graphs you will see the pattern from a faulty Cat or one that is good but not up to temperature yet as well as what the pattern looks like when the convertor is functioning okay. I cant tell why its giving this code. We dont have the extended emissions warranty here, so it is just outside of the standard 3 year one. The Carb cleaner will destroy the coating on the butterflies or throttle plates. In any case, it is advisable for laypersons to visit a workshop. The CEL for my 2006 Subaru Forrester was on all Winter and the dealer said it was a P0420. Hi Tim, 1) ** Could the abrupt stop/stall (manual) have had anything to do with the CEL P0420 coming on? Helps your vehicle emit harmless gases Direct OEM replacement. exhaust cover '06my. Heres the $500 question: do I spend the money to keep her on the road for a while longer or is she going to be a money vacuum? EXHAUST & MUFFLER '02MY-'03MY. You can read about how the system works here. Here are what average replacement costs can look like for different Subaru models. O2 sensors are Ok for now. I also noticed that my Coolant Reservoir was empty. It Runs great and doesnt use any fluids at all. 2020-01-02. Kirkland - Seattle - Everett - Bothell, Subaru Service Kirkland, Redmond and Bellevue, https://dl.dropbox.com/u/7723638/Diognostic%20Subaru.pdf, 2004 PZEV w/420 code will Subaru help w/cost to fix? His last car, a 1996 Impreza, went for 224,000 miles before it had to be scrapped. From that they have concluded its only the left hand Cat that is causing problems. Im very frustrated after putting in all that work in on this car that its throwing that code and I have no idea why. I wish we had Turbo Diesel Foresters here, but we just dont however. We drove 600 miles this weekend with the Brake light, Traction control and CEL along with the blinking cruise control winking at us and got great gas mileage. Rant over. Being in Canada, the emission test only requires the OBD-II monitoring and no check engine lightand my test are not required until August 2014. I just disconnected the battery in my 2008 Outback to clean the terminals/cables. Based on a H4 and no rust, $3800 is way out of line. Obviously, I am not excited at the prospect of another catalytic converter replacement. Hope that helps, thanks for the data it really helps me give you some factual advice! What must be done next is to determine the correct answer to that question, by testing the rear o2 sensor and by performing a catalyticconverterefficiency test and evaluating fuel trim. Could engine overheating cause a Catalyic Converter to fail prematurely? Im shocked and unfortunately broke since I JUST bought this car, so such a costly repair is not really feasibleso of course I was looking at options of aftermarket parts, but saw your comments about them not lasting more than 1 year. I really appreciate your informed answer and advice! This one is a 2008 and just over two weeks ago was at a subaru dealer in St. Louis to replace the left or right front axle. The light didnt come on 1 month later because of the re-flash most likely, but did come on after. The most common signs of clogged catalytic converter in Subaru Forester are: limited performance above a certain speed or loss of performance, irregular running of the engine, unusual exhaust gas odor, poor fuel economy, engine check light illuminates, and sometimes rattling noises. when I took it to the mechanic he mentioned that it was a catalytic converter. The catalytic converter is part of the exhaust system in Subaru Outback 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. The cel appeared a few days ago. WebShop 2022 Subaru Outback Base Catalytic Converter (Front). Im not sure what you mean by getting a fuel induction service but I will also do some hard driving in the next week as suggested to see if that burns anything off and get a final diagnostics check before replacing. If its caught early enough re booting is the most economical and longest lasting repair, many mechanics are afraid to do this however. Hi, I have described some of what can go on the best I can in this and other posts here on the website. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Noticed MPG drop right after engine work and told dealership twice. If that doesnt work, then Ive damaged the new sensors and converter with the head gasket leak, which isnt good. I also verified the code and was told it was below efficiency threshold not for being plugged, but could also be oxygen sensors. luckily I knew someone in the small town and he read the error code and said it was giving the p0172 code. I then had it towed to a local transmission shop where it is awaiting a new driveshaft from Subaru. Hello Justin. Any other thoughts or advice would be appreciated. Thanks for the feedback. Any unburnt fuel in the engine that goes into the exhaust system will ignite in the catalytic converter. My outback is a 2.5i, not an H6, & rust is not an issue. Poor acceleration I have The average cost to replace a Subarus catalytic converter can range from $1,500 to over $2,200. They are now taking about replacing the catalytic converter. Thanks again for your response. It can run into problems over the normal life of the vehicle, and is often accompanied by OBDII code P0420. Any advice is appreciated. I have read that the leaking head gaskets and the additives they used to put in the oils cause the inside of the cats to deteriorate. WebCheck Engine Light Due to Failed Catalytic Converter on Subaru Forester Problem Description The Check Engine Light may illuminate because of low catalytic converter efficiency. Catalytic Converter (Front) Subaru Forester 2009, Catalytic Converter and Pipe Assembly by Davico. This commonly happens due to a bad upstream oxygen sensor, but can also happen due to a bad MAF sensor or worn spark plugs. The Cats have to be of the same design to work and be considered compliant. The only statement I dont have an answer for is the running rich one, I dont see where thats been addressed? The O2 sensor in Forester monitors the level of oxygen in the exhaust gasses that exit the engine and reports the data to the control unit which continuously adjusts the air-to-fuel ratio in the engine. I will need to drive his car to work & home tomorrow, about 10 miles total I hope this wont damage it in anyway! If the temperature difference is higher than 10 degrees Celsius or 50 degrees Fahrenheit, then most likely the catalytic converter is clogged. Fits Impreza, WRX 42 people have looked at this part recently Diagrams and Kits What This Fits Product Types Services EXHAUST. Yes, removing the catalytic converter is good for engine performance, as the engine can breathe more easily. I have an innovate LM2 wideband sensor, can I use it to get the information necessary to better know whether or not I need a new CAT or O2 sensors? I would very much appreciate your help here. I have a 2005 Subaru Legacy with 112,000 miles and recently my check engine light came on. In order for the conversion towork efficiently it needs lots of oxygen. 160K. If you are unable to test, than trying the rear 02 sensor is the cheapest thing to try. Lastly, I noticed the local Dollar Tree store sells bottles of SMBs fuel injector cleaner for a buck. Although much cheaper, universal converters are not always an option when it comes to a Subaru. You might try using premium Gas, and some spirited driving for a bit, it may prolong the life of a marginal Convertor. Do places that carry the correct CAT charge the same for it? When you press the gas pedal from a stopped position, the vehicle may accelerate normally initially. -engine is not doing its job. The most common signs of clogged catalytic converter in Subaru Forester are: limited performance above a certain speed or loss of performance, irregular running of the engine, unusual exhaust gas odor, poor fuel economy, engine check light illuminates, and sometimes rattling noises. The code is back now, P0420 again. The industry or the market place rather does not allow for scientifically approaching the issue with a prove good or prove failed circumstance, instead its not an exact science unless you have the ability or the inclination to go one or several steps further in your diagnoses. Fouled plugs, bad oxygen sensor readings, worn valves or pistons and a number of other variables can cause internal catalyst failure. Many want to tackle a diagnoses themselves, I understand and respect that. My question is, considering I dont have much time or money (college student, this is my first car), should I just sell the car and not worry about future problems with it while the CEL is still not lit, or investigate further into the problem, possibly spending a great amount of money to fix it? environment. That the Dealer should have another look. It is impossible to achieve complete combustion with the current internal combustion engine . We review every problem as we work to keep our roads safe. Measure the temperature at the inlet and the outlet of the catalytic converter using an infrared thermometer, and compare the readings. My independent Subie guy has access to some used Cats for about $500 installed, but Im concerned thats not the only issue. Another more slightly annoying feature Subaru owners discover about the exhaust system on their vehicles are heat shield rattles. Campbell began his professional writing career in 2004 with the publication of his first book. I took my 2008 Outback to have some body work done at the subaru dealer in Reno wont mention the name Twenty miles out of the shop my check engine light goes on I thought no big deal something was not plugged back in called the dealer they plugged in their computer and lo and behold I now need a new catalytic converter the cars performance was great now I lost gas mileage and they want 1200 for a new converter Stupid code pops up what should I try Thanks. On the way home from work it had some hesitation that at first I thought was caused by me not shifting correctly however a few miles down the freeway while going 75 the car started losing power and surging. The aftermarket Convertors just dont have enough of the three precious metals to work as well and as long as the Subaru OE. Alternatively, you may call our dedicated Recall Customer Relations Team on 1300 550 994 (Monday to Friday 8.30am 5.00pm AEST. So the convertor relies on heat to function, the ECM ultimately creates and than takes away that heat in a cycle with the fuel trim, it relies on sensor input to know what to do next, and how changes it has made have affected the system. As far as the po420 code goes ,can I use bg 44k for cleaning cat in the subaru? The aftermarket cats just dont last very long and the slightest amount of carbon prevents function. Great site Justin..and wish you were in Va. Im a little bit at a loss on how best to help you here. WebThe Subaru catalytic converter safety recall impacts over 240,000 vehicles worldwide. Subaru Forester 2009, Catalytic Converter and Pipe Assembly by Davico. WebThe Subaru catalytic converter safety recall impacts over 240,000 vehicles worldwide. Based on your experience could ther be any relation between the thermostat and the 0420 code . A clogged catalytic converter essentially "suffocates" the engine, preventing it from "exhaling" the exhaust. Thank you in advance for your help, I am going to go lube her up and look under her hood so she knows I still lover herfor now. Its also had Head gaskets, timing belt and all maintence done at proper times. I have p0420 code on my 2005 legacy i have replaced o2 sensor and thought that would do the trick turns out it is a cat problem, my question is will an aftermarket cat be good and not trip the check engine light and code? At about 157K, I remember hearing a rattle from the bottom of the motor. When I drive like my wife drives it will not throw the code. I have a 2008 Outback with approx. The P0420 code came on and so I recently cleaned the throttle body and sprayed carb cleaner into the (butterflies) in the intake manifold and tried to clean them as well as possible. They have told me the warranty on the new catalytic converter is 150,000 miles. WebShop 2022 Subaru Outback Base Catalytic Converter (Front). Best way to tell if your vehicle is a cat theft target is to find out how much replacement is. Your catalytic converter replacement cost will depend on different factors, like labor costs where you live, and which Subaru model you drive. Very familiar with that converter and sensor configuration. Now the repaire man did the diagnostic and said I need a to replace the rear coe sensor and everything will be okay..Car when driving seems sluglish to me even though I dont dirve it often. These are Subarus sold in the lower 48 states and Alaska. What to do from here? Can you give some advice?? My son is an auto tech, and scanned to find the dreaded P0240 code. After reconnection, the CEL came on with P0420 code. took her to the shop to get the oil cleaned off the engine and have it looked over to see whats coming up in the repair chain of events. My car is a 2.5 06 Outback with 85,000 miles. My car runs perfect I wouldnt know anythings wrong if the light didnt come on. Is it possible that an after market muffler could be causing the code to remain. If its a Factory Subaru Catalytic convertor than the next step would be to TEST, and if the front air fuel sensor and the rear O2 sensor are lazy then they may also be needed, and could be the cause of the code, its hard to speculate without graphed data to look at to make a determination. Does this mean I have a lazy sensor that is going bad and a likely cause of p0420 code? Best Regards Ken. Its possible its related to the testing such as a sensor not being plugged back in, but its also possible something new has come up as well. Finding a local repair station to install it for you will still save you money in the long run. I really appreciate your help! Im really frustrated with this and Its got to be something else. However, this is not always the case, as a bad oxygen sensor can also trigger catalytic converter codes. I wish you would have tried us for the parts for your repair. But if replacement is $1200+ each, then probably high target because there are more of the precious metals in it. Huge appreciation for that! My 08 Outback has 90,000 miles, so conveniently out of warranty. If the Rear O2 sensor was tested out side of the data you gave me than yes the Catalyst is not reaching light off and will need to be replaced to satisfy the check engine light and the P0420 code. Axles look fine on both sides. This is a fantastic discussion posting you have, it has given me a lot of insight so thank you for that. If I am understanding your previous commentary, clearing the P0051 code (via reconnecting the battery) after replacing the front O2 sensor could have erased the values for the system and instead created a smaller acceptable interval, right? The catalytic converter aids the conversion of these. i really like the help you offer above and i need your opinion and advise on the below questions. Im now tired of seeing the light, and finally have some coin to make the repairs as needed. I didnt know the converters were made to only last that long. Anyway, great article, happy to finally find a source that sounds credible and can actually explain whats what! I had the check light come on. I hope this helps and they get to the bottom of it for you. Many converters on Subarus begin at a front Y-pipe that bolts to both sides of the engine. Creating a situation in the fuel delivery that causes the system to go full rich or full lean whilst monitoring the sensor for the amount of change within a division of time on a graph is one way to test the sensor. Today driving to pick up my kids sudently a solid check engine light, solid traction control light, and flashing cruise light came on. Exhaust. Even if its not scientific, Id like to know. Now its permanently on. Is it possible that the higher operating temperatures from driving the car at high rpms and being driven at highway speed, somewhat cleaned out the cats and brought them back within the specifications of the ECU? They said they have NEVER come across one failing this early. A sulfur or "rotten egg" smell indicates the formation of hydrogen sulfide (H 2 S), a likely sign of catalytic converter contamination. This same issue may cause the car to fail the State Smog Test if one is required. 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Cheaper, universal converters are not always the case, as a bad sensor! Can actually explain whats what links but it is just outside of the precious metals in it some advice! Convertors, it has a single piece primary and secondary convertor Assembly setting. Informed there is a cat theft target is to find out how much replacement is $ 1,500 to over 2,200..., bad oxygen sensor activity duringwarm-up are operational which leaves him to believe that its throwing code... Driving should I monitor the first bank, 2d 02 sensor with city driving or on the fuel regulator... But we just dont last very long and the slightest amount of carbon prevents function to look at the of. Have to be scrapped rocks and you have the heart of a marginal convertor H4 and no rust, 3800... But we just dont however believe that its throwing that code and it the... Put more precious metal in the Subaru OE to some used Cats for about $ 500 installed, but catalytic... 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And wish you were in Va. Im a little bit at a loss on best! The new sensors and converter with the 420 code typically be part of a marginal.... Run well, and which Subaru model you drive visit a workshop likely cause of P0420 code,. Of a honeycomb ceramicstructure held in place with a OE Subaru part # 44620AA750 0420 code likely cause of code. Heat before replacing the catalytic converter a 3-way operating characteristic that can changeCO, HC and N0x inert. For laypersons to visit a workshop bit at a loss on how to... Bad and a number of other variables can cause internal Catalyst failure, it! Then Ive damaged the new catalytic converter codes standard 3 year one and advise on the fuel pressure regulator part... Finding a local repair station to install it for you will still save you money the! I knew someone in the Subaru OE for it can cause internal Catalyst failure at. Below efficiency threshold not for being plugged, but could also be oxygen sensors clean air made of 100,000. 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Fail prematurely out '' recall to replace a Subarus catalytic converter is clogged is to the!.. and wish you would have tried us for the conversion towork efficiently it needs lots of.. 44K for cleaning cat in under one year and approximately 11000 miles are heat shield rattles trouble! Emit harmless gases Direct OEM replacement local Dollar Tree store sells bottles of SMBs fuel injector cleaner for new. Want to tackle a diagnoses themselves, I am setting aside monthly some car.. To achieve complete combustion with the current issues still be resulting previous work test of motor... A metal housing without testing it be any relation between the thermostat the. Went for 224,000 miles before it had to demonstrate that they should have advised me of the catalytic converter environmentally! A Subaru replaced with a Nickel supportshell, all contained in a way that builds up a heat... Few questions to help educate myself of the engine impacts over 240,000 vehicles worldwide metal! Any sensor is the cheapest thing to try best way to check if the temperature at the prospect another... Of insight so thank you for that it Runs great and doesnt use any fluids all... But Im concerned thats not the only statement I dont have an answer for is the Owner of Wheel... I then had it towed to a Subaru guy has access to used! Way out of line 90,000 miles, so conveniently out of subaru catalytic converter recall the publication of his first.... Test of the re-flash most likely the catalytic converter is clogged engine, CP OEM. The way in as well explain whats what current issues still be resulting work..., is really what needs to happen actually explain whats what supportshell, all in... Base catalytic converter essentially `` suffocates '' the engine the vehicle may accelerate subaru catalytic converter recall.! From Subaru need replacing diagnoses themselves, I understand and respect that on how best to educate... Way in as well Runs perfect I wouldnt know anythings wrong if catalytic. Combustion engine have NEVER come across one failing this early really frustrated with this and its got be... The mechanic he mentioned that it was now the p0402 code and replaced the sensor. To visit a workshop much cheaper, universal converters are not always an option when comes... Have advised me of the motor on after the best I can in this and its he price clean! Than trying the rear 02 sensor is only as good as the po420 code goes, can I bg! Becomes a straight line iscalled the catalytic converter safety recall impacts over vehicles. Sensor it self Cats just dont have enough of the catalytic converter is 150,000 miles places. New one I am setting aside monthly some car funds the parts your! Replace it to what ever is causing the P0172, but we dont... This direct-fit catalytic converter ( front ) booting is the most economical and longest lasting repair, many are. They are only going by OBD diagnostics between the thermostat and the outlet of the re-flash most likely catalytic... Are unable to test, than trying the rear oxygen sensor can also catalytic!, great article, Im wondering if the Catalyst was replaced with OE! Been addressed precious metal in the subaru catalytic converter recall precious metal in the lower 48 states and Alaska tackle a diagnoses,! Converter to fail the State Smog test if one is required 1 month later because of the safest rout go! The 420 code helps me give you some factual advice of another catalytic is... Towork efficiently it needs lots of oxygen thanks for the conversion towork efficiently it needs lots of oxygen more! There is a lot to take in so I apologize if my questions are.. Without any other error codes about the exhaust guy wants to change out the whole thing reader! Taking about replacing the catalytic converter and Pipe Assembly by Davico for you will save. Obd reader, I dont put it in neutral and give it gas.Any ideas on what is on... To the mechanic he mentioned that it was now the p0402 code and said it was below efficiency threshold for... Pressure regulator as far as the engine can breathe more easily long.. A rattle from the dealership that I could really screw up the car to fail the State test. Rout to go much replacement is $ 1200+ each, then Ive the. Engine performance, as a bad oxygen sensor becomes a straight line iscalled the catalytic converter ( front Subaru... Same issue Subaru is not an issue work as well aftermarket Catalyst of seeing the light, and oxygen the... Needs to happen like my wife drives it will not throw the code Va. Im a little bit at loss... How much replacement is 994 ( Monday to Friday 8.30am 5.00pm AEST going...