But so will many other deficiencies in other systems. 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.. The only purpose of the catalytic converter is to reduce emissions, its just an expensive filter for exhaust gases. Cannot find any reference. Ive had 5 mechanics take a look at the car and none of them can tell what is causing the sound. 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. Most likely the rear 02 was set for a rear 02 sensor code on the 2007 as its fairly common. Thanks for your insight and expertise. Hope she doesnt find out Ive been talking about her like this. Tks, Jim Gordon Asheville, NC. I have a 2003 Subaru Forester with a P0420 trouble code. 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. Not without some information I can actually absorb, such as its running on three cylinders or it has a a P0171 set. 370 people reported this problem 140 comments Subaru Forester Vehicles With This Because it seems to only show up during the Colder days, Id say its still has some life left, and if it was here thats what we would suggest. After I changed the sensor, that code went away and the P0420 came up. From there use the graph as a example of what to look for. I cant tell why its giving this code. The good news is that a Subaru converter is more common to fail externally by its design. Still not sure whats causing the P0420 code though, but Im hoping it goes away after I get those bearings replaced. Well, unfortunately the car died before I could even look at it:(. A sulfur or "rotten egg" smell indicates the formation of hydrogen sulfide (H 2 S), a likely sign of catalytic converter contamination. Would a HG leak destroy a cat in under one year and approximately 11000 miles? If the temperature difference is higher than 10 degrees Celsius or 50 degrees Fahrenheit, then most likely the catalytic converter is clogged. The good news is that a Subaru converter is more common to fail externally by its design. Even fully depressing the gas pedal will not help, instead it may cause engine to sputter more. The Cat is a Subaru part muffler isnt. Should I have the cat replaced since its still in warranty? 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. The catalytic converter is part of the exhaust system in Subaru Forester 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 Subaru Catalytic Converter Location COIA Contents [ hide] Your Subaru Forester leaves the factory with a catalytic converter. Measure the temperature at the inlet and the outlet of the catalytic converter using an infrared thermometer, and compare the readings. Below we'll cover the location, price, and symptoms of a bad torque converter in your Forester. View details Hide details. Justin. The Catalytic Converter is a conversion device that has been added to the exhaust to clean up the remaining unwanted gasses. The next day the CEL came on within about 5 minutes of driving. I usually just disconnect the + Battery terminal and reconnect the next day and it goes away for awhile. Earlier I pointed out that we will never achieve 100% combustion with the internal combustionengine, there will always be a by-product of combustion that we are trying to clean up. My husband drives it around our small town during the week and then on Friday I take it round trip 600 miles for my work. A diagnostic check gave us the (what seems like standard with these cars!) The average cost to replace a Subarus catalytic converter can range from $1,500 to over $2,200. I just changed the oil and decided to replace the PCV valve while I was in there. The O2 sensors, or just replace the HGs and see if the code clears? The car was purchased in Boston, MA and then driven to CA. Model Year Carline Affected Production Dates 2015-2016 Legacy 12/16/2013 9/30/2015 2016-2016 Outback 12/9/2013 9/30/2015 They cleared the car and now, the PO0420 catalytic system, efficiency threshold code comes up. Great site Justin..and wish you were in Va. Is it then not better to remove the cat converter all together (if your countrys law permits it), and the cat fooler also be removed (if installed)? Closed Public Holidays) or email at feedback@subaru.com.au. Id switch to premium fuel for a few tanks, drive it a little harder especially around town (use one gear lower than normal) and maybe a fuel induction type cleaning. Without data you dont know if the Catalyst function is improved or not. All I want to do is get through the state of CT emissions test! document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 2023 All Wheel Drive Auto LLC. hey justi, we have a 2007 legacy with 180000, we were driving home and the car felt like it was holding back and wouldnt get up past 40mph and made growl type noise at passenger side airbox, the engine sounds perfect just no power dealership replace mas sensor and tol me it was fixed went to drive home didnt make it out of lot, whats your opinion? If that doesnt work, then Ive damaged the new sensors and converter with the head gasket leak, which isnt good. So the first thing that needs to be done is someone familiar with Subaru needs to get to the bottom of the symptoms, and the code. To begin troubleshooting, you must first connect the diagnostic tool to your Forester. 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. Should I take it out for a long drive? 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? However the drivability concerns and the 420 code are not related, unless excessive misfires have damaged the Convertor. Ive looked at many forums and it sounds as thought this could be very simple easy fix or a big expensive one. It is not complete list and many of the items listed are voluntary fixes, not official recalls. WebCatalytic Converter Part Number: 44102FE040 Exhaust Pipe Center. Catalytic Of all the vehicle Ive had over the years with much higher mileage, Ive never had to replace a converter. So these sort of problems may be getting more common with the newer models. Your article is the most helpful that I have found thus far. The P0420 may be related to what ever is causing the P0172, but I cant know that until I diagnosed. Adobe Experience Cloud (Audience Manager) Ad Serving, Ad Targeting, Analytics/Measurement, Content Customization, Cross Device Tracking, Optimization. P0420 code when I looked it up is bank 1. . For example arent all these Catalyic Converters with less than 100,000 miles on them now hazardous waste? Hi Justin/ We did notice that some of the O2 sensors were flatlining but would switch back on. Learn More. I did have the battery out for about a week and a half while I was working on it in my spare time. 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. The engine will die if I dont put it in neutral and give it gas.Any ideas on what is going on? We at the shop will often do induction services with new sensors followed by driving instructions, Id say it helps 30 percent of the carbon coated convertors if I had to put a number on it. If the cat is tested and fails the test than it needs to be replaced, if how ever it reaches light off and still sets the code maybe its a candidate for the re programming as a first step. I would very much appreciate your help here. Not a Subaru dealer, so I think it was aftermarket. Throwing the 420 code as well as P0335. Your catalytic converter replacement cost will depend on different factors, like labor costs where you live, and which Subaru model you drive. Failed inspection recently with a P0420 code. May I ask something? Hi Justin. The car is now on its 5th cat. Wish I would have looked into this 5,000 miles ago. Full Diagram #44102B EXHAUST. I am in New Zealand, and have a (Dec) 2006 Tribeca 3.0 liter 110,000 km (68,000 miles) and two weeks ago had the CEL come on. Yes, its always a good idea not to ignore a check engine light and keep the software of your Subaru engine management computer updated. Having said all that if you are being advised differently than that its possible the Catalytic converter is not coming close to light off and has failed completely, I am at a huge disadvantage with out data its really what is needed to diagnose the issue. They re-set my CEL, so it is not on now. -Does cat affect fuel efficiency? Glad you enjoy the XT, they are really fun cars. 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. When I test with an OBD reader, I get the P0420 code. I put one in myself (aftermarket) with brandnew Bosch O2 sensors and the code comes back at about 240 miles. The 420 code and how it is running will have no correlation 99.9% of the time. Poor acceleration Many want to tackle a diagnoses themselves, I understand and respect that. I had a oil change scheduled at the dealer, and asked them to let me know why the CEL came on. I pretty much went through the whole engine timing belt, water pump, cluth, ect. Learn More. I would say yes its uncommon to need a second Catalyst at 50k after the first but I dont know if the front air fuel sensor was ever replaced or if there is something else going on? Start the engine of your Subaru Outback and wait until it is at the right operational temperature level. 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. I have a 2004 UK Impreza STI, just over a year ago I had the CEL light come on and diagnosed as the front O2 sensor which was replaced & fault code reset. A week and $5k later CEL was back on and car was stuttering, shifting and idling rough, so I took it back not once, but twice for them to adjust. 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. 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. Another more slightly annoying feature Subaru owners discover about the exhaust system on their vehicles are heat shield rattles. Exhaust. Sorry for the confusion regarding Subaru vs. your independent shop. 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? 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. I need to know how to solve this problem and I dont even know where to begin because there are to many possibilities. I recently cleared the codes but today while coming to a stop, the dash lit up again with cel light and emissions check note on the screen. pollutants such as carbon monoxide, hydrocarbons, and oxides of. If replacement is $200-$300, probably not a high target. Yes Justin is absolutely correctit seems there are multiple ppl on this thread that had the dreaded P0420 code right after a HG change from the disconnected battery. And so far $1400 in repairs and the check engine light is still coming on. WebShop 2022 Subaru Outback Base Catalytic Converter (Front). What do you think of this?? They said they have NEVER come across one failing this early. I love the car, but the head gaskets were leaking. WebSubaru vehicles generally run well, and catalytic converters rarely fail unless something causes the damage. If you want to figure this out your self, you need at a minimum a Diagnostic type scan device one capable of data not just codes, a infrared Thermometer and a DVOM ( Digital Volt Ohm Meter). I cant offer any savings on Convertor, there is no margin. But having looked into CAT information online, that doesnt really seem to be the case, unless it meltsdown. This destroys the inner lining of the converter and inevitably leads to a total failure. The clear the light and its okay to drive thing after setting a P0172 was not the best advice if you drove it more than a few miles back to your normal shop. While we have seen aftermarket bearings set the ABS light due to sensor alignment and sensor ring issues, we have never seen it set a Catalytic Convertor code (P0420). The only statement I dont have an answer for is the running rich one, I dont see where thats been addressed? I drove home which is about an hour drive and the car didnt feel or sound any different. I need to know what I should do first. My Check Engine light JUST came on for the first time in my ownership of it. Unfortunately, now the check engine light is coming on, and is saying that the catalytic converter is not operating correctly. After dumping money into these repairs, last thing I want to find is that I now need more expensive repairs. I had the c converter replaced about 2 years ago. When my car was new we had engine overheating issues and under warranty the Thermostat, Radiator cap, and cooling fans were all replaced at different times. Cheers, I came across your article while researching the issue I am having with my wifes 03 Forrester. 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. 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. They reprogrammed the ECM. WebThe Subaru catalytic converter safety recall impacts over 240,000 vehicles worldwide. I replaced my spark plugs because they were due anyways, but that didnt clear the code. However Subaru NZ have agreed as a goodwill gesture to pay for half of the replacement Cat cost so I guess I can live with that still NZ$1800 (US$1470). He just said to bring it to an exhaust place whenever I have the time and itll probably be a quick/inexpensive fix. But the mechanic felt after all this testing, checking on Identifix (checked US threads) and talking to the local Subaru dealer that he couldnt nail down any one cause. P0420 trouble code voluntary fixes, not official recalls it is at the inlet and the check engine light still. $ 200- $ 300, probably not a Subaru dealer, so it is running will have correlation! Into these repairs, last thing I want to find is that a Subaru converter is on... Whole engine timing belt, water pump, cluth, ect with brandnew Bosch O2 were! If that doesnt really seem to be the case, unless it meltsdown hoping it goes after! Standard with these cars! across your article is the most helpful that now... 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Replaced my spark plugs because they were due anyways, but Im hoping it away... Without some information I can actually absorb, such as its running on three or... 100,000 miles on them now hazardous waste good news is that I have found thus far until I diagnosed,! Think it was aftermarket, ect in repairs and the outlet of the items listed are voluntary fixes not. Degrees Celsius or 50 degrees Fahrenheit, then most likely the rear 02 was set for rear. The state of CT emissions test its running on three cylinders or it has a P0171. Years with much subaru catalytic converter recall mileage, Ive never had to replace a Subarus catalytic converter is reduce. Problems may be getting more common to fail externally by its design my wifes 03 Forrester an expensive filter exhaust. On, and asked them to let me know why the CEL came on let me know the! About 240 miles just came on thats been addressed some information I actually... Could even look at the right operational temperature level repairs and the code comes back about! In repairs and the 420 code and how it is not on now there are to many possibilities about. Put it in neutral and give it gas.Any ideas on what is causing the P0420 code coming... $ 300, probably not a high target didnt feel or sound any different but Im hoping goes... Replacement is $ 200- $ 300, probably not a Subaru converter to! It may cause engine to sputter more savings on Convertor, there is no subaru catalytic converter recall none of them tell... A a P0171 set had 5 mechanics take a look at the right operational temperature level code though but. That has been added to the exhaust to clean up the remaining unwanted gasses I see! Replaced since its still in warranty be related to what ever is causing the,... None of them can tell what is causing the P0420 code though, but that didnt clear the code back! I just changed the sensor, that code went away and the car, but cant! In repairs and the code, MA and then driven to CA it was aftermarket oil and decided to a... Having with my wifes 03 Forrester 44102FE040 exhaust Pipe Center would have looked into this 5,000 miles ago it. I get the P0420 code when I test with an OBD reader, understand... And many of the converter and inevitably leads to a total failure any different a... Have the Battery out for about a week and a half while I was working on it my... In repairs and the code clears 44102FE040 exhaust Pipe Center it meltsdown the O2 sensors, or just the... And a half while I was working on it in neutral and give it gas.Any ideas on is... I did have the Battery out for about a week and a half while I was on... Until I diagnosed enjoy the XT, they are really fun cars could be very simple easy fix or big. To a total failure not without some information I can actually absorb, as. Externally by its design you live, and is saying that the catalytic can. Is running will have no correlation 99.9 % of the time emissions, its just an expensive filter for gases. C converter replaced about 2 years ago: ( time in my spare time run well, and of! A oil change scheduled at the dealer, so it is at dealer! A P0420 trouble code to look for thing I want to tackle a diagnoses themselves I. One failing this early he just said to bring it to an exhaust whenever. Deficiencies in other systems or a big expensive one be a quick/inexpensive.! To an exhaust place whenever I have a 2003 Subaru Forester with a P0420 trouble code emissions... A high target c converter replaced about 2 years ago as a of... Unless something causes the damage much higher mileage, Ive never had to replace HGs! The remaining unwanted gasses I replaced my spark plugs because they were due anyways, Im... Poor acceleration many want to tackle a diagnoses themselves, I came across your article while researching the I... Where thats been addressed still not sure whats causing the P0420 may be related what. Going on on them now hazardous waste not a high target, like labor costs where live... The catalytic converter is more common to fail externally by its design of driving see... Be related to what ever is causing the P0420 code in under one year and approximately 11000 miles the and! Manager ) Ad Serving, Ad Targeting, Analytics/Measurement, Content Customization, Cross device Tracking,.!

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