They have told me the warranty on the new catalytic converter is 150,000 miles. Best Regards 370 people reported this problem 140 comments Subaru Forester Vehicles With This A convertor analysis could take an hour to perform but months to perfect. At the time of purchase we took it to a Subaru dealership of our own choosing and paid for a multi-point inspection (the same one they do for certified pre-owned cars). 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. The running lean code could be a clue as well. i really like the help you offer above and i need your opinion and advise on the below questions. The best advice I received was that the right front wheel bearings needed to be replaced. Im a little bit at a loss on how best to help you here. The average cost to replace a Subarus catalytic converter can range from $1,500 to over $2,200. Try to create some Exhaust heat when driving it and that may help it light of. High octane fuel has always been used. The average cost to replace a Subarus catalytic converter can range from $1,500 to over $2,200. 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. Hi Justin EXHAUST, Engine, CP - OEM Subaru Part # 44620AA750. So it doesnt help me determine whats wrong but puts the odds in favor of the convertor being restricted with carbon and not reaching temperature. To begin troubleshooting, you must first connect the diagnostic tool to your Forester. Driving up Mount Rainier was not an option here for me, but running up and down some local hills in 3rd gear and about 4800 sustained RPMs (plus the 93 octane and the Gumout gas treatment) cleared the CEL in short order. My car too has the p0420 code. Most diagnostic devices then ask for some information about the vehicle. The place to start is the Reflash. Ambient temp vs ECT temp at start up combined with drive time at certain speeds are what ultimately trigger the monitor, when we perform a drive cycle post code clear the catalyst and Evap monitors are the last two to come back online, and sometimes can take days or weeks. Learn about our recall process. Thanks for your reply Justin. Air bags. After warm up I ran it while parked at about 3000 rpm. Thinks this is a great vehcile, but is it reasonable for the converter to fail after this kind of mileage? Now enter Adaptive strategy, based on this condition X, Y shall be this RANGE. I am interested to see whether my cat reaches a lights out condition. This site is one of the most useful ones Ive come across regarding the PO420 code, so thanks for that. if it doesnt well you need a Cat convertor. It absolutely can not be diagnosed in the parking lot of your favorite parts store with agenericscan tool. Hello, very informative site thank you for taking the time to share your knowledge and answer questions. https://dl.dropbox.com/u/7723638/Dioc%20Subaru.pdf. Subaru's number for this recall is TKC-20. When I drive like my wife drives it will not throw the code. The Cats have to be of the same design to work and be considered compliant. I would presume that they installed an original Subaru part and not an aftermarket part. Argument was it is winter gas blend and just a coincidence. FCA03. Bank 1 Below Threshold My best suggestion is to drive it hard with premium fuel. 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. Subaru has determined that the efficiency of your vehicles front catalytic converter may degrade over time. Hi Justin, Hope she doesnt find out Ive been talking about her like this. -Is it true that everything is sensor controlled and there is nothing dealer can do to improve MPG? The car also had leaking head gaskets and we have always changed the oil frequently (2.5k 3k, never as much as 4k miles). The car is running fine, no problems. Even with the check engine it was running perfect until it didnt. I would very much value your input on what I should do with respect to the recommendations I am receiving. Had a local garage check it out and they could not find any issues. After this switch the check engine light disappeared. I am wondering if these contributed to the deterioration of the cats. Any unburnt fuel in the engine that goes into the exhaust system will ignite in the catalytic converter. After 2 resets and air out the car on the hwy with 91 octane and fuel injector cleanerthe code hasnt popped back up (knock on wood). My outback is a 2.5i, not an H6, & rust is not an issue. An infrared thermometer can be used for this test. You can try to build up some exhaust heat with a spirited drive in lower gears and higher RPMS then typical and see how that goes. Its been happening for about 3 years. 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. 4) **Should I just continue to drive it, with higher octane (per manual recommended 87)until the light comes on again? These are obviously aftermarket and he only charged her for the 1st one, about $600. My confidence in them is shaky. Is that accurate and if it is a new ECM should I ask if it has been calibrated? 180,xxxkm 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. went oncode po420. So I had both front bearings replaced. WebCatalytic Converter Part Number: 44102FE040 Exhaust Pipe Center. I have a 2001 Subaru Impreza and I got a P0420 code. So I am hoping you can suggest what my next moves with my Subaru dealer here should be as i am very reluctant to rush into replacing the CC,s. In late April I took my 2007 Forester, 59,000 miles, to a Subaru dealership to address recall WVU-31 from April 2011 (yeah, it took me a while!). The gas odor is probably a fuel leak, use the search feature and type in fuel smell and have a read. Thanks in advance for any advice you care to give. He wasnt sure why the check engine light was coming on and suggested I contact subaru. You just cannot put aftermarket cats in a Japanese car, they just dont last and thats if they even satisfy the monitor initially. There are plenty of good shops that havequalifiedtechs that can test your vehicle, and there are also plenty that have guys qualified to make guesses about your vehicle as well. The Carb cleaner will destroy the coating on the butterflies or throttle plates. Data from any sensor is only as good as the sensor it self! I have no idea if any one sells a factory Subaru Convertor online. At 75,000 mile maintenance, Dealer replaced head gasket under warranty. He was able to get a wrench on the hose clamp to tighten it down. Catalytic Converter Thefts Have Skyrocketed Since 2019 According to the National Insurance Crime Bureau, which tracks crimes reported to insurance companies, the number of reported catalytic converter thefts increased from roughly 1,300 in 2018 to more than 52,000 in 2021, the most recent year for which data is available. 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. Full Typically the Catalyst and 02 sensors should be done a the same time. 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? Why Is The Power Steering Making Noise on My Subaru Outback? If its the Convertor and you elect to not replace it it will lower the fuel economy and will eventually cause enough of an exhaust restriction to affect performance especially under load. Thanks for all of this information, it is really helpful. 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. Justin has been providing Subaru Owners (regardless of where they live), with tips and advice about their Subaru since 2006. Larry. 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. If you see any fault code from P0420 to P0424 or from P0430 to P0434 in the OBD2 scanner, it indicates a problem with the catalytic converter. It really helps to have a knowledgable Subaru mechanic give advice like your do. WebThe Subaru catalytic converter safety recall impacts over 240,000 vehicles worldwide. I have a 06 Legacy with 130,000 miles. Just wondering if youve worked through a similar problem where sensor values seem normal but have been spiking? 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. How is this test performedwhile driving or during idle? Toggle navigation. I dont want to put over $1,000 into a $2,500 car. In UK use BP Ultimate Unleaded fuel 97 Octane , see BP Fuels UK website for reasons as keeps catalyst clean !. Huge appreciation for that! Love the turbo. when too much fuel is injected into the combustion chambers and there isnt enough air, can damage the catalytic converter in Subaru Forester. The cats,o2 sensors, Pcm replaced and reprogrammed, Maf sensor have all been replaced with Subaru parts. If you have a heart monitor that states your dead, but your talking the first thing a good practitioner will do is swap out the sensor before pronouncing you dead. There is no more external oil or coolant leaks at the head anymore. Its got 95,000 mi. P0420 was showing Alternatively, you may call our dedicated Recall Customer Relations Team on 1300 550 994 (Monday to Friday 8.30am 5.00pm AEST. Justin. Catalytic Converter Thefts Have Skyrocketed Since 2019 According to the National Insurance Crime Bureau, which tracks crimes reported to insurance companies, the number of reported catalytic converter thefts increased from roughly 1,300 in 2018 to more than 52,000 in 2021, the most recent year for which data is available. It took me about 5 years post education to be a good enough technician to really be able to accurately diagnose these type of conditions and even then sometimes more experience may generate even better results such as a better understanding of cause and effect which can lead to fault prevention. Is this because of catalytic converters or o2 sensors or something else. 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?). and suspected a one time voltage surge. Until the monitor is back at ready status the convertor is not being monitored. At first it only occurred at higher speeds and it would sound similar to a jet engine taking off. Its a California emission vehicle, but I have tried two different non-California catalytic converters, and both have failed. The difference in price is $300 more it seems. It my be time for a new car. In addition, since the converters are often integrated into the construction of the Y, or intermediate exhaust pipes, the pipe extensions can fail, requiring the replacement of the entire pipe and converter assembly. Youre doing a great service to the Subaru owner community. russellpat Registered 2022 Outback Touring XT. 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 was able to graph the 2d O2 sensor. Would replacing the secondary O2 sensor do anything? The issue at hand is the aftermarket ones may not have enough precious metal to function. I replaced plugs, wires, and eventually the ignition coil Closed Public Holidays) or email at feedback@subaru.com.au. Second, we also have a 2007 Outback wagon, and earlier this year, had the head gaskets replaced (under drive train warranty, yay!). These heat shields are susceptible to exposure and can break loose from connections and create annoying rattles while driving. Really cant speculate on whats the matter, its possible the booster is failing but that would be very uncommon. Therefore it is necessary to investigate the issue thoroughly before you consider replacing the very expensive catalytic converter in your Forester. I see comments about an ECM reflash. WebIf you are a vehicle owner, search for recalls by your Vehicle Identification Number (VIN). I drove the car in second/third gear on a local 14 mile roundtrip Monday night. Thank you. Poor acceleration Maybe just drive it for a bit and see how it goes? A gas cap being loose would never cause a PO420, it could set a P0457 or P0440 however. A professional mechanic can swiftly diagnose the problem for you. With a noticeable loss of performance, high fuel consumption and more harmful emissions at the tailpipe, a defective catalytic converter should definitely be considered. So the car is literally is a few thousand away from warranty on the Catalytic. We recently had our 2006 subaru outback in for inspection/emissions. Subaru Forester 2009, Catalytic Converter and Pipe Assembly by Davico. If you dont have any good advice I have a 2000 subaru outback for sale. Have a 2008 Outback 2.5i Pzev and got a P0420 code after a HG change (external coolant leak). So I think these lights are coming on because of something wrong the speed sensing controls rather than something wrong with the engine or emissions systems. He looked at the sensors and thought the crank shaft sensor was loose but the code came back. Should I have the cat replaced since its still in warranty? Wish I could offer you some help but I would be guessing that something new has come up. Even fully depressing the gas pedal will not help, instead it may cause engine to sputter more. Removing the catalytic converter almost always leads to better engine performance in older vehicles. How did you get on with your problem? Since it is payed off, instead of paying car payments for a new one I am setting aside monthly some car funds. After reading your explanations I end up with more questions than I started with. We review every problem as we work to keep our roads safe. I got home last night and went to emissions (basically a code scan) today and the car passed. Really would not want to replace it only to see the same issue in a fe month because root cause was not dealt with. I really like your website and it has provided a lot of information to me on the P0420 code on my 2000 Subaru Outback. Any other thoughts or advice would be appreciated. Unfortunately, I got the feeling from the dealership that I could really screw up the car if I dont replace it. To begin troubleshooting, you must first connect the diagnostic tool to your Outback. Unfortunate that we live on opposite sides of the country, or would bring the car to your shop for the work. 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. Cannot find any reference. I have a 99 outback with 144k miles. I had the c converter replaced about 2 years ago. I appreciate your reply. nitrogen. View details Hide details. 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. Adobe Digital Marketing. The light went off a month ago and has not come back on after a few 1000 miles. When you press the gas pedal from a stopped position, the vehicle may accelerate normally initially. 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. Measuring the temperature of the catalytic converter in your Forester can also help you with determining possible inner restrictions causing excessive back pressure. The warranty complicates things and can create a situation where the Dealer will want to try the 02 sensors and it may temporarily resolve the issue and get the vehicle out of the warranty period. The day after I posted that I came to a sudden stop when a green light turned to red and my Suby violently shook as I came to a stop. Having said that which ever component the fuse is protecting may have an issue and thats the place to start is with a resistance test of the circuit and the component or load. Some weeks later, in early December, CEL came on. But just before the lights went on the first time I had filled the tank and added STP engine cleaner additive, which I had never used before. Testing now. Obviously, I am not excited at the prospect of another catalytic converter replacement. 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. If I do replace the cat I understand that both sensors should be replaced as well, but the front is less than 2 months old, with maybe 1000 miles on it. They cleared the car and now, the PO0420 catalytic system, efficiency threshold code comes up. 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. Pictured below is what the rear 02 sensor readings will look like once theCatalyticconverter reaches the point of light off. I have a recurring CEL code of P0420. Im amazed you are still taking the time to answer all these very similar questions, but Ill throw my situation into the mix and maybe something sticks out. I checked the codes today, no other codes besides the P0420. The dealer said they do not do the efficiency test. The O2 sensor in Outback 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. Noticed MPG drop right after engine work and told dealership twice. Now i do all this reading and searching and blah blah. Hi Justin, Since then, the CEL hasnt come back on and I havent brought it to a shop to get it checked out because Ive been busy with school. When I drive the car for a week it will throw the code (spirited driving). I read somebody else had the same issue. Justin, But after reaching a certain speed, the performance of the engine will drop due to blockage of increasing exhaust gases in the system. The OBDII connector is usually located under the dashboard. 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. 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