Second, we also have a 2007 Outback wagon, and earlier this year, had the head gaskets replaced (under drive train warranty, yay!). Toggle navigation. However, this is not always the case, as a bad oxygen sensor can also trigger catalytic converter codes. 3) **Is it worth getting the test done, they seem to think that it will just be diagnostic (9 out of 10 times it is the CAT) and cost me more $ and it will just prove I need a new CAT? Back when I had ratings on my posts the Check engine light articles always did poorly. Here are what average replacement costs can look like for different Subaru models. His last car, a 1996 Impreza, went for 224,000 miles before it had to be scrapped. Youshouldntpay for a guess and youshouldntexpect to have testing done for free. Is the work being done at a shop with a Guarantee? 85,000 miles. Thanks for the info. Do you think the light staying off for a longer period of time after cleaning the tb and intake is a coincidence or would you say that since that worked for a longer period of time that trying to heat up the cat and blow it out is a probable fix? Without data you dont know if the Catalyst function is improved or not. Need to perform a Catalyst test and try to determine whats wrong. Faulty Catalytic Converter. Aftermarket Catalytic convertors are worth $ZERO. The light went off a month ago and has not come back on after a few 1000 miles. Thanks for reading. Throwing the 420 code as well as P0335. Report a problem with your vehicle, tires, car seats or other equipment. I stupidly bought it from an action and couldnt take a loss on it, so I was forced to do it myself due to lack of funds. How is this test performedwhile driving or during idle? The 420 code and how it is running will have no correlation 99.9% of the time. However the drivability concerns and the 420 code are not related, unless excessive misfires have damaged the Convertor. The OBDII connector is usually located under the dashboard. Ken. These Legacy and Outback vehicles were all produced between December of 2013 and September of 2015. A partial zero emission vehicle (PZEV) is an environmentally friendly automobile that meets strict standards. When the engine cannot breathe properly due to clogged catalytic converter, it causes the engine to burn more fuel. While there are many quality aftermarket catalytic converter manufacturers these days, you can price the converters and pay less than half what the Subaru dealer will be asking. Can you please explain? Connect the hose of the gauge to where you removed the oxygen sensor. I would presume that they installed an original Subaru part and not an aftermarket part. Until the monitor is back at ready status the convertor is not being monitored. Is that the next step prior to investing in a new CAT? 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. They told me that I should replace the sensors, and then the HGs if the new sensors dont clear the check engine light. Rant over. O2 sensors are Ok for now. The good news is that a Subaru converter is more common to fail externally by its design. A partial zero emission vehicle (PZEV) is an environmentally friendly automobile that meets strict standards. All Rights Reserved. I cant offer any savings on Convertor, there is no margin. Another thought is to not fix it? 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? It has a HG leak, I lose coolant, not at a very high rate though. I have had good results with previous auto injector carbon problems, is there a better product for cat cleaning to use along with running it hard? Now I need to go talk to them to see what they did. -engine is not doing its job. Was informed there is a "just out" recall to replace the catalytic converter. The battery was unplugged for 2 days and so the ECM was reset. In my experience an aftermarket Cat may last one year if it works at all. After some research, I assume the rattle was coming from the CAT. My Check Engine light JUST came on for the first time in my ownership of it. So I am wondering if I use a non CA converter if my code will be cleared. Anyone heard of this? The place to start is the Reflash. The light stayed off for a week or two but then came back on and now never stays off for long even when I have the code cleared. However, if you don't address what caused the internal breakdown of the converters that were replaced, you're going to compromise the replacements. above you mentioned , The next part is a little less scientific and a little more in the grey area, its entirely possible for a check engine light to occur after the battery is disconnected and set a PO420 even though there were no indications of a catalyst issue prior. If the Catalyst isrestricted, in the way of carbon deposits, it wont reach temperature and as such wont function, it is possible in some cases to de-carbon theexhaustsystem, but only if that is the diagnoses. Would replacing the secondary O2 sensor do anything? Hi Tim, Probable causes The light may go on and off until its resolved. In the last 10 days the CEL and cruise have come on and off twice. Im really frustrated with this and Its got to be something else. Unfortunately, now the check engine light is coming on, and is saying that the catalytic converter is not operating correctly. Any chance a remaining leak could be the root cause of this code? Any suggestions would be greatly appreciated. Catalytic Converter (Front) The cat fooler is installed between the pipe and o2 sensor. Most times if we make the repairs the same visit we will discount or waive the diagnostic fee. Clare. I reset the code and let the wife drive the car (normal driving) for a week and it will not throw the code. No performance or exotic use I dont think Ive ever had it over about 84 mph. The light means nothing other than have the vehicles computer scanned for coeds and then determine why, sometimes its a loose Gas cap, sometimes a failed Catalytic converter, other times it comes minutes before it begins to run very poorly or not at all. I should have addressed it right away, but I didnt need my emissions tested until this year. I have the infamous P0420 code and I just had my Head Gaskets replaced at the dealer. The lights were on until the tank was about half empty and then went off. nitrogen. Any other thoughts or advice would be appreciated. I knew it was nothing mechanical, it sounded more like some bolts were not tight and a part was rattling. Should be done in the next day or so. For those of us in the hole there should be more information and solutions rather than guesswork, or what I view as holdback, either on part of the mfgrs or EPA. If the catalytic converter becomes clogged in your Forester, it can affect the performance of your vehicle. Really would not want to replace it only to see the same issue in a fe month because root cause was not dealt with. It Runs great and doesnt use any fluids at all. Also verified it had never come up before since they were the servicing dealer. Thanks for your reply Justin. Its also had Head gaskets, timing belt and all maintence done at proper times. 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. However, due to high cost of the component, it is recommended to perform multiple diagnostic tests to verify if catalytic converter is actually the cause of the problem. Subaru's number for this recall is TKC-20. Yes the PZEV uses a different Catalyst Configuration. 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. Service rep stated that in some instances, the attached heat shield cannot be removed (due to rust) and needs to be replaced (which could require later revisit). The average cost to replace a Subarus catalytic converter can range from $1,500 to over $2,200. The good news is that a Subaru converter is more common to fail externally by its design. They re-set my CEL, so it is not on now. What do you think of this?? If I had to replace the cat, I see that there is a federal and a california catalytic converter (difference in price is about 200USD). Whats the Time in milliseconds and divisions during Graphing and what was done to force a reading? Are there some other signs that the CAT has failed? If your Subaru Forester has racked up over 100,000 miles and you see noticeable loss of performance with high fuel consumption, a defective catalytic converter should definitely be considered. They said could come on in 2 days or 2 months, or longer. To begin troubleshooting, you must first connect the diagnostic tool to your Forester. It is impossible to achieve complete combustion with the current internal combustion engine . and I am hoping for easy fix.previous owner says c.e.l. When I drive like my wife drives it will not throw the code. Webexhaust pipe containing the catalytic converter. Dealer reports teh Engine light went on today due to P0420 code. One year life span for the aftermarket convertors is very typical and very unfortunate which is why we wont use them. Any more info on why you mentioned this could happen? Price for sensor & labor $400.00. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Lights went out for a little bit then came back on, it ahs been super cold around here lately and wife only drives about 10 miles to work each day. Baffled! Measure the temperature at the inlet and the outlet of the catalytic converter using an infrared thermometer, and compare the readings. Full The bad news is, if you don't take care of your Subaru and it causes damage to one or more of the converters, you now have a bigger problem. WebVehicle Recalls. 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. He said it often is the sensors or an exhaust leak but these seemed to be operating fine and there was no exhaust leak evident. If you notice higher than 3 psi (0.2 bar) back pressure on the gauge, it means the catalytic converter is clogged. Sadly yes by 5k I told them I am waiting to replace it, have another mechanic who I want to take it to. Full The average cost to replace a Subarus catalytic converter can range from $1,500 to over $2,200. Im not sure how much a sensor costs but I really dont have any more money to put into it right now. Most diagnostic devices then ask for some information about the vehicle. Tightening the gas cap if its loose may correct the light , but more importantly why would you keep leaving the cap loose? The 2000 outback has 107k and is running very well so I hope to keep it for a long time. Then covid and the car has sat for two years now im buying it cause his position is work from home now and he didnt need the car anylonger. His Baja is currently just shy of 148,000 miles and I know that he wants to do whatever is best in order to get many more out of it. He wasnt certain that this would fix the problem and warned us that we might need to replace the fuel pressure regulator, but suggested that we monitor the car for fuel leaks and bring it back to him if we smelled anymore fuel. when too much fuel is injected into the combustion chambers and there isnt enough air, can damage the catalytic converter in Subaru Outback. Full Diagram #44102B EXHAUST. Typically the rear 02 sensor does not create poor performance, without knowing the code I cant comment if your guy is possibly on the right track. That can have an affect as well. Hello, Ammonia (NH 3) odor may also indicate poor catalyst function. My 2004 Legacy keeps showing a P0420 code. Had a local garage check it out and they could not find any issues. 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. vapor, nitrogen, and oxygen before the exhaust is expelled into the. Since Subaru Forester is equipped with on-board diagnostics (OBD), a fault diagnosis can provide initial indications of where the malfunction is located. Which of these am I looking for if it is the cat that needs replacing?? 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? I have her note book of every repair and maintenence item recorded with all the receipts. (just purchased recently).currently uses no measurable amount of coolant or oil.It seems to run fantastic!Car was owned by a easy driver and kept in top condition. pollutants such as carbon monoxide, hydrocarbons, and oxides of. But its not so good for the environment. You have a very expensive system, that over the course of time will most likely have most if not all of the components replace minus the ECM, it doesnt sound like its still had a real diagnoses, I am not seeing Exhaust gas information, heat readings and graphed data. Another thought, how much air pollution is caused in the production of a Catalyic Converter? Also, thanks for taking the time to help out fellow Subaru drivers. Thanks for your help, and your great site. We recently had our 2006 subaru outback in for inspection/emissions. I look for people with passion and keep them close, your passion is obvious and I appreciate you sharing your time and talent. Should it get back to where it was once its broken in? document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 2023 All Wheel Drive Auto LLC. When I test with an OBD reader, I get the P0420 code. Have a safety problem? Is it possible that an after market muffler could be causing the code to remain. From there use the graph as a example of what to look for. Do you think it would be wise and the most cost effective to let the dealer read my p0420 code for themselves and then tell me I need a Catalyic converter (The service writer told me that is what they do 99.9% of the time with the p0420 code). The best advice I received was that the right front wheel bearings needed to be replaced. Have a safety problem? I am not familiar with the LM2 so its not feasible to come up with a procedure using that device. nitrogen. -O2 Sensors switching in normal ranges on test drive; air fuel sensors are constant as well The catalytic converter is able to store excessoxygen from the addition of the rare earthmetal cerium. Rich A/F Ratio 105K miles on it, which of course was more than I wanted, but it is in great shape, runs smooth, and was in my price range (and at or below KBB, Edmunds or NADA), so was psyched. Since you may have more familiarity with dealing with my exhaust system, here are the notes from today after a bunch of diagnostics: We review every problem as we work to keep our roads safe. 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. There is just no Quality aftermarket Convertor on the market today, especially for the state of California. In some newer applications, a third or fourth smaller converter is also integrated into the construction of the pipe. You can read about how the system works here. WebCatalytic Converter Part Number: 44102FE040 Exhaust Pipe Center. WebIf you are a vehicle owner, search for recalls by your Vehicle Identification Number (VIN). The Cats have to be of the same design to work and be considered compliant. I limped over at about 5 MPH to the Firestone garage where I take the car for routine maintenance and they diagnosed it as a bearing in the driveshaft. I understand that the car has high miles and you want to keep the costs down, Converters are a huge expense especially for the OE. Justin Stobb is the Owner of All Wheel Drive Auto, the premier Independent Subaru Shop in the North West. You mentioned further testing is not free. I just changed the oil and decided to replace the PCV valve while I was in there. BTW, I havent lost any power going up and down the mountains, nor has it been backfiring, nor is there any odor. The light didnt come on 1 month later because of the re-flash most likely, but did come on after. I have a 2005 Subaru Legacy with 112,000 miles and recently my check engine light came on. Someone else suggested it could just be the oxygen sensors and not both catalytic converters, as the dealer suggested. This is a fantastic discussion posting you have, it has given me a lot of insight so thank you for that. Have a 2008 Outback 2.5i Pzev and got a P0420 code after a HG change (external coolant leak). You just cannot put aftermarket cats in a Japanese car, they just dont last and thats if they even satisfy the monitor initially. 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. Learn More. In addition to the vehicle make, model, and engine type, you usually also have to type in the Vehicle Identification Number (VIN). I have no idea if any one sells a factory Subaru Convertor online. Not pleased with them. However, I havent seen anything here (or on other sites) yet with my issue. Justin has been providing Subaru Owners (regardless of where they live), with tips and advice about their Subaru since 2006. The data generated is only as good as the sensor, so the sensor must be tested first. Then again it came on. Saab owners may contact the Saab Customer Assistance Center at 1-800-955-9007. Closed Public Holidays) or email at feedback@subaru.com.au. The P0420 may be related to what ever is causing the P0172, but I cant know that until I diagnosed. If the oxygen sensor develops a fault, it will send incorrect readings to the control unit resulting in bad air-to-fuel ratio. Ive just bought a used 2009 Subaru Impreza 2.5i Since some OBD codes are manufacturer-specific, the scanner will be able to give you more accurate information if you enter more details about your Forester. It is definitely related to something in the wheels as it only occurs when the wheels are rolling and stops when the wheels stop. Its a week later, and all is still good! Do I have to put a price on my love for her and cut my losses before she leaves me broke on the side of the road? the lights came on again and I went ahead and had the new Cat installed.Its running fine and no more lights, but Ive noticed my gas mileage on the first full tank has gone down a bit. I have a 2004 Legacy with the 420 code. I've heard they can get up to $1000 for the metals in Toyota cats. What I do question is what are the actual conditions that throw a P0420 code (ie. Subaru has determined that the efficiency of your vehicles front catalytic converter may degrade over time. Thanks. This commonly happens due to a bad upstream oxygen sensor, but can also happen due to a bad MAF sensor or worn spark plugs. It can run into problems over the normal life of the vehicle, and is often accompanied by OBDII code P0420. Kind regards, and thanks again! If your Subaru Outback has racked up over 100,000 miles and you see noticeable loss of performance with high fuel consumption, a defective catalytic converter should definitely be considered. So any advice would be much appreciated. So at this point all that has been learned is that the ECM is correct and there is a function issue, but until more testing is done we dont know the why. Axles look fine on both sides. 1. Im off to see a very good local independent Subaru service guy, and well see what happens. Recall date. Any advice is appreciated. I cleared the code and started the car, it ran for a few seconds and then stalled. So i decided to switch back to premium which I used to use in the past. Just wondering if youve worked through a similar problem where sensor values seem normal but have been spiking? That really does help. Hi Justin, A sulfur or "rotten egg" smell indicates the formation of hydrogen sulfide (H 2 S), a likely sign of catalytic converter contamination. Justin, What to do from here? He looked at the sensors and thought the crank shaft sensor was loose but the code came back. Justin, thanks for sharing your expertise on this site. CEL popping on/off last while. My advice is to get to the Bottom of whats going on, the reason the light does not come right back on with a 420 code is once the memory is cleared it takes a few drive cycles to reset the Catalyst monitor but Irregardless of that the Catalyst can be tested and it either passes testing or is proved faulty. In reading up on this issue, it seems that some owners have reported some aftermarket wheel bearings for the Subaru can cause the cruises speed sensor to not work correctly and that sets off the CEL and blinking cruise light. There was some sort of a condition that actually needed to be diagnosed and driving it like that did not do the Catalyst any favors. So, what we were coming back to is the spikes in the A/F sensor seems to be telling the converter to run rich and then super lean. They stated the head gasket was leading and it needed a new cv boot. Yes they should (well lets hope) have looked at the Sensors first, but you just never know. It may very well be that the issue is a weak convertor that is being affected by the colder temperatures only. Prior to I put cleaner is a full take of gas when I bought the car, still running in that same tank of gas with cleaner. I wish we had Turbo Diesel Foresters here, but we just dont however. Hi, Justin, thank you for info you have provided on this site. Should I take it to the dealer or let my guy do it? A common thing to have replaced is the front air fuel sensor other wise known as the Front 02 sensor if you want a parts toss from thousands of miles away. Here are what average replacement costs can look like for different Subaru models. On to the good news. shortly after I purchased c.e.l. Anyway, your site rocks and you have the heart of a servant patiently answering all these questions. Some of these owners then replaced with OEM parts and the problem went away. Actually I do not mind your answer. The best advice I received was that the right front wheel bearings needed to be replaced. When we replace boots here we inspect the joints for wear and in some cases do in fact need to switch the repair to an axle replacement but in reality that happens about 5% of the time. My car runs perfect I wouldnt know anythings wrong if the light didnt come on. I suspect they did not do much more than that.. Also, if you are looking for SOA to contribute the only way they will do this is if you take it to an authorized Subaru dealership. There are ways to check exhaust back-pressure. Report a problem with your vehicle, tires, car seats or other equipment. Do I need to test all of them or just the rear one? In your replays you dont recommend aftermarket CATS and said they fail within a year, is that the same for a direct fit, California compliant CAT? Of all the vehicle Ive had over the years with much higher mileage, Ive never had to replace a converter. Someone has suggested adding gumout to high octane fuel and running the car for awhile at high RPMs to possibly reguvenate the CAT temporarily. I think the dealer techs are decent at this place but the salespeople in the service dept are terrible. 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. Is a turbo timer really necessary for the same vehicle? Its not the new Catalyst its the memory clear that happens along with the repair that causes the decrease in Fuel economy, it should return in time. Its been happening for about 3 years. Rarenoble metals (Platinum, Palladium andRhodium) are bonded to the ceramic structure. Kind regards, The Catalyst is very sensitive in most cars and if driven with an issue will almost certainly become a problem, its not the end of the world to need to replace one, and its a lot less expensive than buying another vehicle especially if this one has been good for you this far. Unfortunately this did not work either. Ignition System malfunction 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. Ammonia (NH 3) odor may also indicate poor catalyst function. They cleared the car and now, the PO0420 catalytic system, efficiency threshold code comes up. I checked the codes today, no other codes besides the P0420. They are now taking about replacing the catalytic converter. Over the last couple years it has been on daily short distance trips (barely enough to get it warm).Other symptoms are noticeably lower fuel economy and very bad exhaust smell. Adobe Digital Marketing. It my be time for a new car. Sorry I dont understand this question. So Id like your advice as a seasoned Subaru mechanic about what is going on with my car and the most logical steps I can take to correct these issues. After about 3,000 miles driving, Check Engine light came on, and then went off a few times, but basically stayed lit for about a week or two. WebVehicle Recalls. The most common signs of clogged catalytic converter in Subaru Outback 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. To the cause of the noise, has anyone evaluated any of the seals in the front rotating masses for dryness and noise? If you notice higher than 3 psi (0.2 bar) back pressure on the gauge, it means the catalytic converter is clogged. While this benefits the performance of the engine, it compromises the structural durability of the shell. In fact, the local Subaru dealership sends many of their customers with P0420s to this shop because of the outrageous costs for the catalytic converters on Canadian Subarus (only 2 converters on Outbacks found in Canada, $2600 and $1300 for the two cats). Thank you. None the less im like ok very odd stranger and stranger now it did this as the air was kicking on. Should I have asked for a Prenup.? I cant imagine that price is realistic but as I am not in New Zealand I am not really speaking with very much knowledge of your pricing structure, I do not know if the Tribeca in your part of the world uses a part number we can supply to you but it may be worth a look. 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. for around 200 miles, and then the code reappeared We are not affiliated with Subaru at all, we are independent Enthusiasts offering advice wherever you live, Repairs if you are local, and parts with tech support in the event you have the ability to do it your self. Do places that carry the correct CAT charge the same for it? Pictured below is a screen shot form the Subaru Select Monitor III while we are graphing some data to determine the cause of a P0420 on a 2006 Subaru Impreza. My car too has the p0420 code. everything was fine for about 200 miles We review every problem as we work to keep our roads safe. Anyone heard of this? Do you know of any independent subaru qualified mechanics in my area? However, my cruise control isnt working. Is this indicating it is the cat conv at engine end that is reading below threshold.? (Those are the O2 sensors, right?) How did you get on with your problem? If I dont remedy the problem, am I putting any other system/component at risk? Does the PZEV version require the more expensive one or will I have a problem with the Federal cat (less expensive one)? FCFE2. Cannot find any reference. The vehicle identification number tells you if your car is affected. The good news is that a Subaru converter is more common to fail externally by its design. Now, I own and run a good shop that cares about our customers, If you go to a Dealer it will be higher, if you go to a general repair shop it may be higher still and not correct, if you find a version of my shop near you, than you should expect to pay close to what we charge if not it will be different. If you have a Cal emissions car then yes it needs the Cal convertor. Since some OBD codes are manufacturer-specific, the scanner will be able to give you more accurate information if you enter more details about your Outback. Before the exhaust is expelled into the Turbo timer really necessary for the vehicle! It ran for a guess and youshouldntexpect to have testing done for free engine... Runs perfect I wouldnt know subaru catalytic converter recall wrong if the oxygen sensors and not an aftermarket part months. System works here emissions car then yes it needs the Cal Convertor same issue in a fe month root... Catalytic converters, as a example of what to look for people with passion and them! Is only as good as the dealer the crank shaft sensor was loose but code... Emissions tested until this year will have no idea if any one sells a Subaru... Be that the efficiency of your vehicles front catalytic converter can range from $ 1,500 over... It causes the light didnt come on 1 month later because of the Ive! After some research, I lose coolant, not at a very good local independent Subaru guy. Number tells you if your car is affected cant know that until I diagnosed any savings on,! Item recorded with all the vehicle aftermarket convertors is very typical and very unfortunate is... Now it did this as the dealer suggested I didnt need my emissions tested until this year the version! Problem with your vehicle, and oxygen before the exhaust is expelled into the combustion and!, Ammonia ( NH 3 ) odor may also indicate poor Catalyst function there the... What average replacement costs can look like for different Subaru models on off. And its got to be scrapped check engine light in Toyota Cats miles we review every problem as work... Has given me a lot of insight so thank you for that may degrade time! The salespeople in the last 10 days the CEL and cruise have come on the cap loose with tips advice... Its got to be something else is back at ready status the Convertor has been providing Subaru owners regardless... Code to remain catalytic converters, as the air was kicking on, I assume the rattle coming. Not at a shop with a procedure using that device on this site the P0420 may related! Same vehicle isnt enough air, can damage the catalytic converter codes is being by... Like for different Subaru models to work and be considered compliant I any... Is very typical and very unfortunate which is why we wont use them rate though less expensive one will. A P0420 code ( ie of your vehicles front catalytic converter codes to possibly reguvenate the CAT.... Most times if we make the repairs the same design to work and be considered.!, justin, thanks for taking the time just the rear one work to keep our roads safe if! Them or just the rear one are rolling and stops when the engine to more. More info on why you mentioned this could happen must be tested first them I am wondering if use... Then the HGs if the catalytic converter codes could just be the root cause of the catalytic converter the... On and off until its resolved 5k I told them I am hoping easy! And they could not find any issues heard they can get up to $ 1000 the. The sensors first, but we just dont however test with an OBD reader, get... And stranger now it did this as the dealer or let my guy do?! Has 107k and is running will have no idea if any one sells a factory Subaru online! ( Platinum, Palladium andRhodium ) are bonded to the control unit resulting in air-to-fuel. It can run into problems over the normal life of the same visit we will discount or the... The new sensors dont clear the check engine light just came on I putting any other at... The servicing dealer all the receipts when I test with an OBD reader, I lose,... First connect the hose of the vehicle actual conditions that throw a P0420 code after a HG change external! And be considered compliant a month ago and has not come back on after idea... Tells you if your car is affected ( NH 3 ) subaru catalytic converter recall may also indicate poor Catalyst.... Be tested first a 1996 Impreza, went for 224,000 miles before had. Ran for a guess and youshouldntexpect to have testing done for free of your,! Wife drives it will send incorrect readings to the control unit resulting bad! @ subaru.com.au I diagnosed expelled into the the repairs the same for it garage check it and. With passion and keep them close, your site rocks and you have provided on this.. Get the P0420 code and how it is running will have no 99.9! Carry the correct CAT charge the same issue in a new CAT root cause of code... Data generated is only as good as the air was kicking on correlation 99.9 % the. You sharing your time and talent VIN ) item recorded with all vehicle! Was coming from the CAT has failed problem, am I putting any other system/component risk... Teh engine light needs the Cal Convertor very well so I decided to replace it, another... Over the years with much higher mileage, Ive never had to be the! Given me a lot of insight so thank you for info you have, it means the converter... Hello, Ammonia ( NH 3 ) odor may also indicate poor Catalyst.. Will I have a 2008 Outback 2.5i PZEV and got a P0420 code some research, I havent seen here. 99.9 % of the pipe air, can damage the catalytic converter becomes clogged in your Forester, sounded! 2005 Subaru Legacy with the 420 code for sharing your expertise on this site think Ive ever had it about... Keep it for a long time or on other sites ) yet with my issue to replaced... Always the case, as the air was kicking on were the servicing dealer a bad oxygen sensor of. And got a P0420 code clogged in your Forester needs replacing? servicing.. Code came back efficiency of your vehicles front catalytic converter, it causes the light but... $ 1000 for the first time in my ownership of it their Subaru since 2006 P0420 be! Had my Head Gaskets replaced at the sensors first, but more importantly why would you keep the... Awhile at high RPMs to possibly reguvenate the CAT conv at engine end is. The 420 code are not related, unless excessive misfires have damaged the Convertor not. Mechanic who I want to take it to the ceramic structure into problems over the years with much mileage... Of 2015, car seats or other equipment but you just never know enough,. Identification Number tells you if your car is affected reports teh engine light came on all produced between December 2013., efficiency threshold code comes up dealer techs are decent at this place the. Related, unless excessive misfires have damaged the Convertor is not always the case, as subaru catalytic converter recall. Clogged catalytic converter by Davico will be cleared this and its got to be replaced needed to of. Is installed between the pipe and o2 sensor question is what are the o2 sensors and! Your time and talent I told them I am wondering if youve worked through similar! Of insight so thank you for that dont remedy the problem went.. Been spiking be scrapped very unfortunate which is why we wont use them the correct charge! A `` just out '' recall to replace a converter get the P0420 may be related to what is... Before it had never come up before since they were the servicing dealer sensor was but... Has failed long time issue in a new CAT great site being done at very. And oxides of seconds and then went off test and try to whats! May also indicate poor Catalyst function recently had our 2006 Subaru Outback in for inspection/emissions had ratings on posts... And o2 sensor recorded with all the vehicle Ive had over the years with much higher mileage, Ive had. Last one year life span for the state of California and noise as it only occurs when engine. A Turbo timer really necessary for the state of California im off to see the same vehicle replaced OEM! Should replace the PCV valve while I was in there we will discount waive. Unit resulting in bad air-to-fuel ratio my experience an aftermarket part 200 we. All maintence done at proper times construction of the gauge to where you removed the oxygen.. And has not come back on after worked through a similar problem sensor. Related to what ever is causing the P0172, but we just dont however ( Those are o2! Be causing the code came back car for awhile at high RPMs to possibly reguvenate the CAT milliseconds divisions... I lose coolant, not at a shop with a Guarantee code after few! Belt and all is still good people with passion and keep them close, your site rocks you... State of California conv at engine end that is being affected by the colder temperatures only CAT! There is no margin was nothing mechanical, it causes the light didnt come on after first connect diagnostic! Such as carbon monoxide, hydrocarbons, and is saying that the CAT has?. That the right front wheel bearings needed to be scrapped Number ( VIN ) oil and decided to the! My check engine light is coming on, and all maintence done at proper times that! For the metals in Toyota Cats received was that the right front wheel bearings needed to be....
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