Thank you 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? Does this mean I have a lazy sensor that is going bad and a likely cause of p0420 code? So if you get this P0452 code, first check to make sure you're getting a good 5 volt reference signal at the sensor. After I changed the sensor, that code went away and the P0420 came up. Keri Hi Keri, The Cat Code post head gasket repair is something that does sometimes come up, we try and advise customers to try and increase exhaust temperature a bit, post repairs to try and avoid this if at all possible. Now don't ask yourself; What should you do with P0452 code? I dont know where to go from here. Any thoughts on routinely dumping a bottle of this stuff in the tank every 2 or 3 fill-ups? I drive about 60 miles round trip to work, mostly highway, and change the oil every 3k by the book. Any thoughts you have would be most appreciated.
Hope that helps Justin Hi Justin, Another guy from Canada. I then had it towed to a local transmission shop where it is awaiting a new driveshaft from Subaru. O2 sensors are Ok for now. The solution is here : P0452 Possible Solution: Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. I had the code cleared and it came back after a drive cycle. As far as the po420 code goes ,can I use bg 44k for cleaning cat in the subaru? Hope that helps Justin Hi Justin, My outback is a 2. I would also suggest reading in your Owners Manual What Subaru states about not just the Check engine light, but about all warning indicators so you have the knowledge going forward, and know when its ok to drive and when its not ok to drive.
You can read here for more information about how the system works, and its always a good idea to buy your own code scanner. Had it replaced, and light is out. I have a few Questions to help educate myself of the safest rout to go. At 75,000 mile maintenance, Dealer replaced head gasket under warranty. Thanks for any insights you can offer! Have good 5v reference, good ground, signal wire shows. A diagnostic check gave us the what seems like standard with these cars! If you've already made it to the store, you might as well just replace it. 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.
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. Louis to replace the left or right front axle. What do you think is causing these sounds from the front end? In the mean time I would look at buying this so you can periodically scan it your self for codes to make sure nothing has changed. There is no more external oil or coolant leaks at the head anymore. This one is a 2008 and just over two weeks ago was at a subaru dealer in St.
Continue driving and see if the check engine light turns off. But so will many other deficiencies in other systems. He looked at the sensors and thought the crank shaft sensor was loose but the code came back. Which of these am I looking for if it is the cat that needs replacing?? Sadly yes by 5k I told them I am waiting to replace it, have another mechanic who I want to take it to. Being Memorial Day the only thing I could do myself was tighten the gas cap. One issue with not repairing it is that if a code pops up for something else you would have now way of knowing as the light is already on, with a code scanner you can re scan it and make sure nothing new has come up. I am in New Zealand, and have a Dec 2006 Tribeca 3.
The best advice I received was that the right front wheel bearings needed to be replaced. I only wish you were in New England instead of Seattle. Justin Hi Justin, I have a 2004 Legacy with the 420 code. This can and does happen to every car out there, its the cost for cleaner air and will only get worse newer cars have more Catalysts. I have a 2005 Subaru Legacy with 112,000 miles and recently my check engine light came on. Sounds like it could be but if the sensor is ok its showing you a defective Catalyst and the reason for the code. I have a 2003 Subaru Forester with a P0420 trouble code.
My main question is should I go with the Dealer or find a independent shop that would that would do a more through investigation? If its not affecting the performance, you can put it off until you need to test for emissions if you live in an area that tests. I am wondering whether this problem could be related to the P0420 code. Hi Justin, I have a 06 Legacy with 130,000 miles. They are a large and reputable dealership — Anyway they cleared the codes and told me to monitor it. After dumping money into these repairs, last thing I want to find is that I now need more expensive repairs. Best of luck Justin Hi Justin Great to find this information here.
I have been using low grade gas. Justin Actually I do not mind your answer. The failed convertor wont do anything to leave you stranded, or do damage by waiting to repair it other than the air quality which is why its there in the first place. In order for the conversion to work efficiently it needs lots of oxygen. If while driving should I monitor the First bank, 2d 02 sensor with city driving or on the highway? On to the good news. I cant think of any other I would rather be in if I was ever in a Head on accident or out in the snow. I would very much value your input on what I should do with respect to the recommendations I am receiving.