Need to perform a Catalyst test and try to determine whats wrong. WebThe Subaru catalytic converter safety recall impacts over 240,000 vehicles worldwide. Quick question for you, been dealing with an on again off again P0420 code for about 5 months. I have a 2009 Outback here in NC. 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. Will this pass inspection or is the history still in the memory? EXHAUST & MUFFLER '04MY-'05MY. They are a large and reputable dealership https://farmerautovillage.co.nz Anyway they cleared the codes and told me to monitor it. I drive about 60 miles round trip to work, mostly highway, and change the oil every 3k by the book. - Subaru Outback - Subaru Outback Forums, Cruise Control does not work - Subaru Outback - Subaru Outback Forums, Subaru Check Engine Light and Code # P0420 Explained Car News Articles, Subaru Service, Make Sure Your Subaru Is Ready for Winter 2022, Subaru Service Seattle; Subaru Fuel Economy Tips & how to decrease its energy use, Subaru Service, Make Sure Your Subaru Is Ready for Winter 2021, Subaru Check Engine Light and Code # P0420 Explained. Glad you enjoy the XT, they are really fun cars. 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. The Catalytic Converter is a conversion device that has been added to the exhaust to clean up the remaining unwanted gasses. Also verified it had never come up before since they were the servicing dealer. 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. I find this hard to believe and too much of a coincidance that this occurred following our service. 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 Catalytic Converter is a conversion devicethat has been added to the exhaust to clean upthe remaining unwanted gasses. Report a problem with your vehicle, tires, car seats or other equipment. I just read your article. O2 sensors are Ok for now. Any advice is appreciated. At the next stop I popped the hood and noticed a severely leaking battery. I feel so many people so many opinions,,,,. My long time mechanic said it was now the p0402 code and replaced the o2 sensor. Ive got a 2008 Outback that had a new engine block put in at 77k because the dealership snapped the head bolts off when trying to replace a cracked head gasket. Menu: Catalytic Converter Price Forester Catalytic Converter Location Im off to see a very good local independent Subaru service guy, and well see what happens. After a couple of short trips, the light went off (along with the blinking cruise). EXHAUST, Engine, CP - OEM Subaru Part # 44620AA750. The front Y-pipe assemblies can cost twice as much money to replace as the rear converter assembly. 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. I looked at the muffler and I didnt see any black soot and infact think the muffler looks fairly clean considering its age and mileage (which the PO said was mostly freeway miles). Lift the vehicle, allowing easy access to the catalytic converter. 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. nitrogen. Any unburnt fuel in the engine that goes into the exhaust system will ignite in the catalytic converter. Appreciate it! I would very much value your input on what I should do with respect to the recommendations I am receiving. I just purchased a used 2000 forester with 240k miles, the PO said the head gasket was changed as well as other maintenance but they didnt have any paper work. Any more info on why you mentioned this could happen? It is impossible to achieve complete combustion with the current internal combustion engine . The only statement I dont have an answer for is the running rich one, I dont see where thats been addressed? its taken care of and should last a long time. 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). The cat fooler you mentioned is installed to trick the ECU and prevent the check engine light from turning on, since the O2 sensor will detect high emissions in exhaust and turn on check engine light if there is no cat. But I will save that for another article.. Thank you I am not familiar with the LM2 so its not feasible to come up with a procedure using that device. 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. The gas dropped like crazy and it started smoking exhaust. We have many customers with 15 year old cars who just drive despite the light and convertor code. Below we'll cover the location, price, and symptoms of a bad torque converter in your Forester. They need to be welded into the system are attached by clamps and sleeves. Dealer or good independent as long as Subaru parts are whats used. Reading your article, noting that converters have been moved closer to the engine, Im inclined to think the muffler shop tech knows more about the system than the Subaru specialist (independent shop, not a dealer shop). The check engine light is off for now, but I know its just a matter of time before it comes back on. Rare these days! -O2 Sensors switching in normal ranges on test drive; air fuel sensors are constant as well 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). And ever since that repair, from time to time the CEL comes on and the cruise light blinks. It is a PZEV vehicle sold and driven in Pennsylvania. Have a safety problem? Your Subaru Forester leaves the factory with a catalytic converter. Had the CE light come on, took to the same Subaru dealership (Wagners in Fairborn, OH great place) and the diagnosis was rear O2 sensor. Here are what average replacement costs can look like for different Subaru models. Learn More. It does not seem to be running any different. Subaru Motors has employed multiple catalytic converters on its vehicles for many years now. 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. Yes the Turbo equipped Subarus can and will have more engine related issues than a NA (Naturally Aspirated) engine will have but thats true for every car and its also mostly about maintenance habits. The P0420 may be related to what ever is causing the P0172, but I cant know that until I diagnosed. 3 cranks later it comes back on i went and had it tested this past Friday with a huge obd2 scanner that shows alll the runtime data the and while we were looking at read outs the code auto cleared like completely Vanished and all read outs looked correct especially now that i see your diagrams the o2 sensor read out nice and stable like when the code cleared itself im presuming this is the off position ? Hi Justin, The purposeof the catalytic converter is to reduce HC,CO and NOx. If all is done well with the RIGHT parts you should be looking at this in the rear view mirror for years to come. When I test with an OBD reader, I get the P0420 code. It was a salvage title and the seller was a hobbyist mechanic who I believe worked a little bit on the car before selling it to us so I kind of believed him. That inspection indicated there were no concerns, other than a suggestion to replace the timing belt, which has been done. Since it is payed off, instead of paying car payments for a new one I am setting aside monthly some car funds. I only wish you were in New England instead of Seattle. Any other thoughts or advice would be appreciated. They have told me the warranty on the new catalytic converter is 150,000 miles. My wife drives the car now only for short, local trips and not much highway. Yep, need to get that code read! Ive just bought a used 2009 Subaru Impreza 2.5i Following are all the error codes that indicate a problem with a catalytic converter. Since your description is so valuable, may I ask some silly further questions? When the car is warming up in the morning, I smell gas odor, but it goes away when I begin driving. Are there some other signs that the CAT has failed? Howdy Justin,Thanks in advance for reading and advice. If replacement is $200-$300, probably not a high target. Your article says a possible cause is sometimes its just a small exhaust leak. View details Hide details. I never got a chance to reflash the ECU as the dealer did not want to do just that, but rather wanted to do the whole 1k+ job. EXHAUST & MUFFLER '02MY-'03MY. View details Hide details. Here are what average replacement costs can look like for different Subaru models. If so, how? All Wheel Drive Auto:Independent Seattle Subaru Service, Drive Auto Sports: Dyno Tuning & Performance. We review every problem as we work to keep our roads safe. Shouldnt they have thought of all that before recommending to replace? While this benefits the performance of the engine, it compromises the structural durability of the shell. it could be worth importing them myself from what Ive read online most Subaru ones appear to only be around the $1000 each mark. The aftermarket Convertors just dont have enough of the three precious metals to work as well and as long as the Subaru OE. 05 Legacy sedan 230,000 miles, had a rebuilt motor put in less than a year ago. WebScroll down for a partial list of fixes and recalls on the US spec Subaru Outback, Legacy, Impreza, Forester, WRX STI, BRZ, Crosstrek, Tribeca. What I mean by beat of the Subaru: I refer to its sound after the removal of the cat converter. That should be a P0420 code: cat inefficiency bank one. Reading out the fault codes using a diagnostic device is relatively reliable. Any insight would be helpful. This will be covered by that fund. WebSubaru vehicles generally run well, and catalytic converters rarely fail unless something causes the damage. Model Year Carline Affected Production Dates 2015-2016 Legacy 12/16/2013 9/30/2015 2016-2016 Outback 12/9/2013 9/30/2015 exhaust cover '06my. 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. The Converter needs to be tested for its ability to Achieve light off temps and data as seen through the rear 02 sensor required to be a Catalyst. Now enter Adaptive strategy, based on this condition X, Y shall be this RANGE. The muffler shop says there are 4 cat conv (2 at engine, two inline mid exhaust). That really does help. And yet the first couple times I checked it when all this started happening, it DID seem loose! Look forward to hearing from you. Should be done in the next day or so. 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. reads: P0420 Catalyst Information Below Threshold It may just need a better test drive/relearn after repair, or flat out misdiagnosed. I've heard they can get up to $1000 for the metals in Toyota cats. Im running 02 Impreza 2.5TS, with EJ251 for about 6 months now. Thanks again for your response. Hi Justin, I would appeciate your comment on my 2010 Outback. Reading out the fault codes using a diagnostic device is relatively reliable. Required fields are marked *. 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. Its been about 5 days now and I havent seen the light anymore. 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. Given the rattling, gas odor, CC inoperable, and the PO420, is it reasonable to assume the CAT needs replacing? 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. What I also noticed is now is that my temperature gauge is not working. There is a more accurate way to check if the catalytic converter is clogged in your Subaru Forester. Start the engine and wait until it gets into operational temperature. With a noticeable loss of performance, high fuel consumption and more harmful emissions at the tailpipe, a defective catalytic converter should definitely be considered. If you have read this article or any of the other ones I have written about the check engine light you will see that I suggest a code scan in correlation of the light coming on. My car too has the p0420 code. There may also be some firm ware update for your car as well that may address the issue. Once its set to ready status before the convertor is monitored it has to be up to op temp and driven at speed for a length of time, its not minutes its frames of time for which conditions are present. Justin, thanks for sharing your expertise on this site. This is my normal driving style as the wifes is at a normal driving range. 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. The light off will be shown by data from the rear o2 sensor. Another guy from Canada. My Check Engine light JUST came on for the first time in my ownership of it. I had the code cleared and it came back after a drive cycle. i have two light on dash vehicle dynamics control warning light and a emissions control unit malfunction engine control system light on dash. Unfortunately this did not work either. The Cruise is disabled with a powertrain code present in the ECM. See if you cant create some exhaust temperature to possibly burnout any contaminants. Do you think Im looking at a new Converter as well? 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). I have outlined the rear 02 sensor in yellow, the pattern we are seeing indicates either the Catalyst is not reaching the point of light off or function or the rear 02 sensor is sending incorrect data to the ECM (Engine Control Module) . From what I understood they are only going by OBD diagnostics. Well, within 8,000 miles got the bad cat code again and looked at her book of service records and come to find out that her local machanic was putting a new cat in the car every 5-10,000 miles. what does one do i am going to buy a digital full read out obd2 connector for my phone i can leave attached to get some live data recorded but im currently left scratching my head as to what to do now Other than start collecting live data snapshots of the moment it shows up. Subaru Forester 2009, Catalytic Converter and Pipe Assembly by Davico. miles on it. 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