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I have been trying this on quite a few subes with the P0420 catalyst insuffiniency code and it has worked great. It is a simple fix that can be done in minutes. ... 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX ... Newer Generations of Subaru discussion ; 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX ...I have a 2009 Forester 150k miles that throws a P0420 code, it happened 4 times over the course of six months and has gone away after a few days until now. ... Forester Owners Forum to talk about the best years of the Subaru Forester, modifications and reliability history of the Subaru Forester. Show Less . Full Forum Listing.My P0420 showed up shortly after and never went away. Fix the HG first or you'll just wreck the cat again. Here are the steps I took: Purchased:-Hardware gasket for and of the ... We're the best Subaru Forester Owners Forum to talk about the best years of the Subaru Forester, modifications and reliability history of the Subaru Forester. ...

Hmm. I don't think so. Many moons ago some of the heat shield around the exhaust nearest the oil filter was rattling. I through a long hose clamp on it to tighten things up thanks to a recommendation from a friend that did so on his Forester. This is a 2011 2.5i premium 6MT. I just had the clutch done and the oil pan gasket replaced.Theseus161. 3005 posts · Joined 2016. #3 · Jun 11, 2021. P0420 indicates a few possible problems. An exhaust leak, faulty O2 sensor, and the reason they gave you SeaFoam; a bad catalytic converter. The last being the most expensive diagnosis. I would back to the dealership or an indie Subaru shop.I'm very new to these Forester hells having just gotten a 2010 and recently got the dreaded P0420 code. In Youtubes suggesting several possible solutions the catalytic converter cleaner added to 1/4 full fuel tank was the first suggestion. Do any of you have successful experience with that, or terrible experience with that like it ate gaskets ...I look for the average of .700 mv or higher indicating a failing CAT or .500 mv indicating a working CAT. Depending on the ECM programming for CE, FE and then the new various ZEVs, the data from the O2 will vary. I'll post video links and a link back to a new post in P0420 Diag.Apr 10, 2011 · Hey all, new to the fourm. I have a 03 2.5 xs with about 135k. The cel fires two identical p0420 codes about once a week. I have done a visual inspection and everything seems to be in order. i have a actron super auto scanner and use it under global obdii.

Dec 2, 2021 · Forester 2001 L - Stock 101k Miles P0420 - Catalytic Converter Efficiency Below Threshold The forester has been throwing this code for a few months now, typically shows up on long highway runs (but to be fair, that is the vast majority of my driving). I bought a scanner from scantool.net... www.subaruforester.org.This low kilometer Subaru Impreza flags a P0420 Catalyst efficiency fault code very quickly. The rear O2 sensor would behave almost like the catalytic conver... ….

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Exhaust leaks are known to cause P0420 codes. OEM Cats are $1200 ... We're the best Subaru Forester Owners Forum to talk about the best years of the Subaru Forester, modifications and reliability history of the Subaru Forester. Show Less . Full Forum Listing. Explore Our Forums.P0420 Diagnosis Sleeper vdc. ... 1999 Subaru Legacy GT, 2.5L EJ25D DOHC, Manual-201,000 miles-I replaced the original engine with a used 92,000 mile engine 500 miles ago-Ran great for those 500 miles Over the past week I have noticed very slight engine hesitations while accelerating. Drove it one morning and it ran fine aside from a couple of 1 ...

Hi all, I have a 1999 Outback S/W 95K. I bought it used and the head gasket was changed by previous owner at 86K. Shortly after buying it two months ago the check engine light went off. The code was P0440 - Evap Emissions Malfunction. After searching the internet and talking to mechanics I see it is a difficult problem to diagnose and correct.#1 · Aug 26, 2021. Hello! I've perused the forums looking for a solution and I've came up short. I also have very little working knowledge of repairs and advanced car repairs. My …

rolla mo movies P0420 . Today my 2015 forester threw a P0420 code; I am in the Kansas City area and we just had a gnarly week long winter storm (8+ inches of snow, -10 temps and -30 wind chills). ... Related Subaru Forester Subaru Subaru Cars and Motor Vehicles forward back. r/Subaru_Outback. r/Subaru_Outback. Subaru_Outback is a place for owners and ... 122000661 routing numberohio bmv anderson 2933 posts · Joined 2005. #5 · Oct 27, 2014. P1153 (O2 sensor high output bank 1) You have to fix that O2, or the wiring. 2020 Ascent purchased new, now at 45k. 2010 Legacy GT got at 60k, now at 150k. Sold 2005 XT new to 120k - learned to love the turbo. Sold 2008 Tribeca got at 80k, sold at160k.I had this happen to 2006 Forester and it was running rough at idle with code showing on scanner.. Try this first: 1. disconnect the negative battery terminal for 10 minutes. 2. reconnect battery. 3. turn ignition switch to on position wait for 20 seconds. 4. chuck e cheese biggest The '$5 fix' does not affect the vehicle's running. Despite minority grumblings to the contrary, it's pretty clear that Subaru added the rear O2 sensor mostly to be OBD-II compliant, and not much more. So, if you back it out of the exhaust stream 1/2", no big deal. Another permanent "fix" is to reprogram your ECU to ignore the P0420 code.I figure I'd give this thread a quick update. We did the catalytic converter stew with citric and oxalic acid in July of 2019, and our 2002 Forester, which previously had a nagging problem, has been P0420-free ever since. 18 months and counting... ~ Silke ~. '02 Forester S 5MT - "Cooper". '11 Honda CR-Z 6MT - "Kat". who is in line codehswho is joseph frontieragood day farms springfield mo Forester: check engine light (and cruise light) on after replacing the timing belt. Mechanic says it is the catalytic converter and cost to replace is about $1000 (upstate NY) Report. 2000 Subaru Forester 185,420 mi, Visitor. light is on and i dont think its my cat. think it might be the O2 sensors.. checking it out. mckinzie valdez age Nov 3, 2013 · P0420 code, running rich My car, 1999 Forester was giving me fits, running well most of the time, but it started setting the dreaded P0420 code and I noticed that it was running rich, gas mileage dropped to 17 where it usually gets 29 to 31 mpg highway. Also, the idle was wild at times, either idling at 1800, or bouncing between 500 and 1000 rpm. activate xfinity podsbest bars in the ozarkswefabk ck webxfr In all seriousness, the P0420 is only good for making your wallet lighter by either ~$100 for a new sensor or several times that for a new cat. I've never seen a P0420 actually point to a bad catalytic converter. ... We're the best Subaru Forester Owners Forum to talk about the best years of the Subaru Forester, modifications and reliability ...