2001 Subaru Forester O2 Sensor Location

5L EJ253 Post. Recalls issued prior to February 1998 are not included in search results. 5L H4 O2 Oxygen Sensor 234-5003 (Fits. The photo at the right shows the typical SUBARU. It's responsible for sending information to the engine management computer which adjusts the fuel in your engine based on the amount of rich or lean mixtures present. Find Subaru Forester recalls information, reported by the NHTSA, and we will help you find a nearby service center where you can get your car fixed. Ramp up your engine's power and crank up its sound with our wide selection of exhaust systems. O2 sensor for Subaru Forester 2002 ~ 2005 PRE-CAT (sensor 1) FOR SUBARU IMPREZA 2. A couple of question though: Can I get away with a generic replacement like a Universal Walker sensor part number 250-24000 or should I stick with the expensive OEM or Bosch part?. 02 O2 OXYGEN Sensor for 99-2004 Subaru Impreza Forester 2. I installed this Bosch Front Oxygen sensor in my Subaru Forester 2001 4 cyl. (1993-2000 Impreza, 1989-1994 Legacy) + Coupe (Impreza)D = Sedan 2nd gen. 5L H4 Exhaust & Emission Oxygen (O2) Sensor. A wide variety of subaru impreza lambda sensor options are available to you, There are 99 subaru impreza lambda sensor suppliers, mainly located in Asia. 2001 Subaru Forester Knock Sensor. Car ran fine at all times. Buy Subaru Scion Saab O2 Oxygen Sensor Walker Products 250-24440 - AM-2148172227 now at AM-AutoParts! Always Free Shipping.



Shop with confidence. Also where is the ECM located in this vehicle?? Any help would be appreciated. Aftermarket oxygen sensor (O2) will fit the following: 1992-2000 Subaru Impreza 1994-1999 Subaru Legacy 1996-1999 Subaru Outback 1998-2001 Subaru Forester O20061 This information is to be used as a guide only, if you are unsure whether this part fits your vehicle please ask. manufacturer: sensor mfg: 1 wire: 1 wire: 1 wire: 2 wire: 2 wire: 3 wire: 3 wire: 4 wire: 4 wire: function : general motors: delphi: violet : violet : violet : violet. Item Location. 23 and (B134) No. Any ideas on what color the wires are from the ECM that I need to check the voltage of?? (B134) No. Read 2001 Subaru Forester reviews from real owners. Subaru says there have been no crashes or injuries. Lately, I have been having trouble with the car “overheating. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. Original DENSO Lambda / Oxygen / O2 Sensor - identical to the sensor fitted to the car when it came out of the factory Same Day Despatch If Ordered Before 2pm (Mon-Fri) Top quality part with 12 months warranty. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. com offers 167 subaru outback lambda sensor products. remove and replace Oxygen Sensor on a 2003 Subaru 2.



Subaru Legacy/Outback "Check Engine" Light Problems 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup. They are located on the exhaust, one before and one after the front catalytic converter. Subaru Forester Oxygen Sensor Replacement costs between $249 and $416 on average. Find great deals on eBay for forester oxygen sensor. Now they say it's the O2 sensor and about. O2 sensors located. I disconnect the O2 sensor and it is fine! The O2 sensor is working though as I tested it with a VM. Subaru all wheel drive explained awd cars 4x4 vehicles 4wd. Shop with confidence. Those alternate components play a role in operation of the Forester’s transmission. Note: User Submitted Video. The manual says to check the computer though, and it says to do it with a "digital dwell angle meter" What is that? You are supposed to connect it between the diagnostic port and ground (sounds like voltage to me) and measure it in percentage. I had 2001 Subaru Legacy before twin turbo then 2004 WRX and this is my 4th manual car. Learn about this problem, why it occurs, and how to fix it. The style has changed a few times, mainly in the connector. Thanks a lot for all the pics and the detailed explanation.



Shop with confidence. The first image is the system they say I need. Selling my 2001 Subaru forester sti rhd I'm only selling because I'd rather a manual and a coupe. 2001 Subaru Forester vehicles have 12 reported problems. You may be dealing with a wire, connector, or related component failure that you can fix yourself. Torque Solution O2 Sensor Extender Applications: Universal. Save on every Subaru Oxygen Sensor when you shop at AutoPartsWay. remove and replace Oxygen Sensor on a 2003 Subaru 2. Order your Subaru Scion Saab O2 Oxygen Sensor - 1AEOS00116 today at 1AAuto. I've got a chronic evaporative emissions false alarm, so my "check engine" light (CEL) is on more often than off during hot weather. I have successfully replaced the front O2 sensor on my 2005 Subaru Forester. I used a big crescent wrench and both came out super easy, but I've had to use a special O2 socket on some of my other cars. 5L H4 O2 Oxygen Sensor 234-5003 (Fits. See the 2001 Forester price range, expert review, consumer reviews, safety ratings, and listings near you. Find a shop near you. Subaru Check Engine Light and Code # P0420 Explained By Justin Stobb on January 18, 2011 in All Wheel Drive Auto News , Featured , Subaru Repair Seattle If the check engine light comes on in your Subaru there is always a corresponding code set in the computers memory. Subaru Legacy 2001 bad acceleration 38 Answers.



DISCLAIMER: By using Xcceleration. Which sensor are you looking at the first or second, also 02 is a split year in the Forester platform and the front 02 sensor is also referred to by Subaru as a air/fuel sensor and works in a different range as the 02 sensor does. Car problem(s) with the 2001 SUBARU FORESTER. Items Description Item Type: O2 Oxygen Sensor Condition: Brand New Warranty: One Year Warranty OE Number: 32005986, 32005987, 32005988, 32010413, 22690AA56A, 22690AA810, 22690AA45C, 250-24440, 22690AA490, 22690AA491, 22690AA560, 22690AA500, 22690AA501, 22690AA520, 22690AA53B Quantity Sold: One Piece. O2 sensor 2001 ody I had the code checked at Auto Zone ,they said replace O2 sensor in front of CAT. found these and thought I'd post em up Subaru Code Subaru Trouble Code Description 1 Engine Speed Signal Circuit 11 Crankshaft Position Sensor 12 Starter Signal 13 Camshaft Position Sensor 14 Fuel Injector No. How to Test an Oxygen or O2 Sensor - Plus a Quick Guide on What Each Sensor Wire is For - Duration: 7:05. see all Item location. Obviously, replacing the sensor was not the proper fix. We have 62 2001 Subaru Outback vehicles for sale that are reported accident free, 19 1-Owner cars, and 76 personal use cars. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. Subaru Factory Service Manuals (FSM) - Every Model - USDM/EU If this is your first visit, be sure to check out the FAQ by clicking the link above. O2 OXYGEN SENSOR for Subaru Impreza WRX STI Baja Outback Legacy Saab Downstream - $19. Skip to main content. 2002 Subaru Forester O2 senser repair. Oxygen Sensor Locations. You can’t just put a wrench on it because you can’t even see the base of the sensor and it’s in a very. Removing the catalytic converter from your Subaru Forester will allow you to replace it with a new unit or a performance converter, or improve engine performance. Find the best used 2001 Subaru Outback near you. O2 sensors located.



Where is the location of the O2 sensor bank 1 sensor 1 in a 2003 Subaru Forester? - Answered by a verified Subaru Mechanic i got p0131 for 2005 forester 2. I have successfully replaced the front O2 sensor on my 2005 Subaru Forester. Well i have subaru legacy 2001, My problem is when shift the 1 or 2 Gear and then press the accelerator the acceleration RPM slowly slowly increase when it reach to above 1500 RPM then take pickup f. The parts and labor required for this service are. 2001 Messages: 9,450 Location: an O2 sensor went, and now it's back in the shop to have the catalytic converter. The contact stated that the speedometer read 2 mph over the actual speed. Welcome to the Subaru Check Engine Light codes page. see all Item location. When purchasing a mass air flow sensor, you have the option of an original manufacturer part or an aftermarket part. The placement of the front O2 sensor on what I have is a bit more downstream on that front con. That impression (Oxygen Sensor Wiring - Subaru Forester Owners Forum) preceding is usually classed along with: o2 sensor wiring color codes, o2 sensor wiring colour codes, oxygen sensor wiring colour codes,. NEW Oxygen Sensor from Denso, OEM for Subaru, P/N 234-9015 in box. The O2 sensor (also known as the oxygen sensor) is one of the key components in helping your car run efficiently. 2001 Subaru Forester hesitating while accelerating at low speeds and check engine light is constantly on. Page 1 of 2 - Subaru Model & Engine Codes explained. Shop with confidence. Below you will find the most complete list of Subaru trouble codes available.



Related Oxygen Sensor Location Content. it is possable that all you need is a ecm reflash most all dealers can do this and it should not cost any more then a hour of time (trust me i work at a subaru dealership) i my self have been reflashing for all the o2 codes any time i see a 420 code for which ther is no offical reflash and out of aprox 30+ cars only 1 has come back for a 420 code a second time good luck. Find auto Oxygen Sensors for Subaru Forester. However I noticed a company advertising on this site named: Discount O2 Sensor - Top engine performance at bottom dollar prices. (1993-2000 Impreza, 1989-1994 Legacy) + Coupe (Impreza)D = Sedan 2nd gen. This Subaru OEM sensor is commonly referred to with two names: Rear 02 sensor, and Rear Air Fuel Ratio sensor. This is a very reasonably priced replacement. Dealer shop wanted to replace the catalytic converter, but research on some discussions groups suggested it could be the O2 sensor. I've been told that it is highly unlikely that the O2 sensor is bad. Has your Subaru Forester Oxygen (O2) Sensor failed? Then shop at 1A Auto for a high quality Upstream (Front) or Downstream (Rear) Oxygen Sensor replacement for your Subaru Forester at a great price. Join TrueDelta. The Subaru Forester oxygen sensor is located inside of the exhaust pipe. 879 results for subaru forester o2 sensor See more like this O2 OXY OXYGEN SENSOR Suits Subaru Forester Liberty 2001-2008 22690 AA501 EGO. Subaru Factory Service Manuals (FSM) - Every Model - USDM/EU If this is your first visit, be sure to check out the FAQ by clicking the link above. Free Shipping. Recently, thanks to changes introduced by Subaru, we have been given the chance to allow the owner of a Forester to choose between two different Forester parts. You may be dealing with a wire, connector, or related component failure that you can fix yourself. - posted in General: Chassis codes are as follows (according to Japanese models):1st letter determines model type:G = ImprezaB = LegacyS = Forester2nd letter determines body type:C = Sedan 1st gen. Used (normal wear), I have up for trade is my 2001 forester runs and drives great Clean Title Brand new head gaskets Rebuilt heads ($500)with papers New timing belt New water pump New rear main seal Drilled and slotted rotors Rear disk conversion from outback Torque solutions short shifter Mack V lowering springs Wink mirror Hella horns Clean leather front seats and door cards Green fog lights. 1A Auto has a large selection of aftermarket O2 Sensors for your Subaru Forester and ground shipping is always free!.



5 L, 4 Cylinder Engine). 2001 Subaru Forester was showing a P0420 check engine code which is "Catalytic Converter Efficiency Below Threshold". Subaru Forester Subaru Front O2 Sensor Recall - 408 reports. posted by simply wiringforums from September, 1 2017. The most recently reported issues are listed below. Shop with confidence. Skip to main content. Complaints are submitted to the NHTSA by car owners for safety-related defects or other issues specific to the 2001 Subaru Forester. (Pre-cat) So then if your diagnostic code is B1 S2 that means Bank 1 Sensor 2 down stream (post-cat). if you had a 4 cylinder it would be downstream after the catalytic converter. Subaru Secondary Air Injection System Switching Valve Stuck Open, P2440 Sec Air Inj Sys Switching Valve Stuck Open,P2441 Sec Air Inj Sys Switching Valve Stuck Closed,P2442 Sec Air Inj Sys Switching Valve Stuck Open Bank2, P2443 Sec Air Inj Sys Switching Valve Stuck Closed Bank2, P2444 Sec Air Inj Sys Pump Stuck On,P2445 Sec Air Inj Sys Pump Stuck Off,P2446 Sec Air Inj Sys Pump Stuck On Bank2. You may use them at your own risk, and should be confirmed by Subaru before using. Page 1 of 2 - Subaru Model & Engine Codes explained. I have a 2003 Subaru Outback wagon (2. Item location. Ramp up your engine's power and crank up its sound with our wide selection of exhaust systems. found these and thought I'd post em up Subaru Code Subaru Trouble Code Description 1 Engine Speed Signal Circuit 11 Crankshaft Position Sensor 12 Starter Signal 13 Camshaft Position Sensor 14 Fuel Injector No. POST-CAT O2 OXYGEN Sensor for Subaru Impreza WRX Forester GT Outback 2. 2001 Subaru Forester S F4-2.



5 L, 4 Cylinder Engine). P0136 Subaru Description The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. I installed this Bosch Front Oxygen sensor in my Subaru Forester 2001 4 cyl. The Subaru Forester oxygen sensor is located inside of the exhaust pipe. Edmunds has detailed price information for the Used 2001 Subaru Forester. The problem was discovered May 3 when the owner of a 2016 Outback reported trouble. Subaru all wheel drive explained awd cars 4x4 vehicles 4wd. Also please check out the statistics and reliability analysis of Subaru Legacy based on all problems reported for the Legacy. It retails from close to $150 so this is A GREAT PRICE - FIRM located in markham SUBARU BAJA 2003-2006 SUBARU FORESTER 2003-2004 SUBARU IMPREZA 2003-2004 SUBARU LEGACY 2003-2004 SUBARU OUTBACK 2003-2004. 0 Turbo Replaces original sensor part numbers: 22641-AA04222641-AA090 Please. subaru forester 2001. Shipping was quick too which was a plus. remove and replace Oxygen Sensor on a 2003 Subaru 2. You can also send emails to [email protected] for any clarification regarding the car parts. A gasser, if the O2 sensor craps out, will run poorly, perhaps even not at all--but on this diesel, it should just throw a CEL, as this sensor isn't being used to keep the a/f mixture inside a narrow window. Shop with confidence.



You can read more info on the code here. I have a 2001 Forester too and to get to it you have to go from underneath the front passenger section of the car right underneath the passenger headlight side and it unbolts from there. Find out what they're like to drive, and what problems they have. Where is the location of the O2 sensor bank 1 sensor 1 in a 2003 Subaru Forester? - Answered by a verified Subaru Mechanic i got p0131 for 2005 forester 2. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. 2) Does anyone know what fuse this O2 sensor uses and where that fuse would be located? I'm wondering if I may have grounded a wire out on accident from the sensor (or if a wire melted), but I can't find any details on this fuse at all. The converter is located in the exhaust system between the muffler and the exhaust manifolds. But I think my Subaru front O2 sensor is beginning to fail, (get a P0130 within 10 minutes of driving) so I don't know how things are supposed to read. Your Subaru Forester Oxygen Sensor is a component used to regulate the O2 level in your car or truck's exhaust system. Subject: 2001 Forester Check Engine/Cat Conv Problems Date: Thu, 25 Jan 2007 23:29:12 -0500 From: Bill < > Newsgroups: alt. If you are not able to find the Subaru Forester Oxygen Sensor from our online catalog or if you need any technical assistance, speak to our sales and support team through our toll free support lines 1-888-907-7225. The placement of the front O2 sensor on what I have is a bit more downstream on that front con. Bank 1 Sensor 2 Location Subaru. Shipping was quick too which was a plus. The most recently reported issues are listed below. Rear O2 sensor tripped, turning on check engine light. Torque Solution O2 Sensor Extender Applications: Universal.



23 and (B134) No. Order today by 4 P. O2 OXY OXYGEN SENSOR Suits Subaru Forester Liberty 2001-2008. Buy now at AM-AutoParts! Always Free Shipping. Shop with confidence. Subaru Legacy 2001 bad acceleration 38 Answers. 25 mph and 45 mph, the temperature gage will go from being halfway to the ¾ mark and it stays at the ¾ mark. share: The oxygen sensor bank 1 is located in the exhaust. We have Subaru repair manuals available for a number of models, which will allow you to fully handle your own car repairs, upgrades and engine overhauls. I've got a chronic evaporative emissions false alarm, so my "check engine" light (CEL) is on more often than off during hot weather. Now I know there is a fuse to this system but I can't find where it's located in the owners manual. Item Location. Well i have subaru legacy 2001, My problem is when shift the 1 or 2 Gear and then press the accelerator the acceleration RPM slowly slowly increase when it reach to above 1500 RPM then take pickup f. (SOA) has determined that the affected vehicles listed below may experience front oxygen Air/Fuel (A/F) sensor element cracking. Subaru Outback O2 sensor replacement In a previous post I mentioned how I had managed to diagnose a check engine light on my 2005 Subaru Outback and tracked down the fault to a burned out heater coil in the front o2 air/fuel or lambda sensor.



5L SOHC engine (click over image for zoom). However you want to call it, this sensor needs to be working properly at all times. See complaints and reviews for the 2001 Subaru Forester. Find great deals on eBay for forester oxygen sensor. Rear O2 sensor tripped, turning on check engine light. Subaru says there have been no crashes or injuries. The sensor is a round, metal object with a single wire coming off its top. Subaru Outback O2 sensor replacement In a previous post I mentioned how I had managed to diagnose a check engine light on my 2005 Subaru Outback and tracked down the fault to a burned out heater coil in the front o2 air/fuel or lambda sensor. subaru forester 2007 service manual. Find auto Oxygen Sensors for Subaru Forester. I pulled the engine codes and it come back with "P0050 HO2S Heater Control Circuit Bank 2 Sensor 1". However you want to call it, this sensor needs to be working properly at all times. Related Oxygen Sensor Location Content. I'd really like to not have to drop 100+ on a new one *. It is basically a 4 pin Bosch O2 sensor and can be obtained from Repco or any good parts store for about $320. The dealer. Where is the location of the O2 sensor bank 1 sensor 1 in a 2003 Subaru Forester? - Answered by a verified Subaru Mechanic i got p0131 for 2005 forester 2.



Every used car for sale comes with a free CARFAX Report. Item Location. The parts and labor required for this service are. Engine And Engine Cooling Problem on the 2001 SUBARU FORESTER. /r/Subaru IS NOT intended to be a platform for you to sell your ride or for posting links promoting external. Ratchets And Wrenches 589,269 views. Re: Subaru Forester? Ground clearance is a concern for us as well, so I'm also looking at the Tribeca, but it seems like they get shitty gas mileage. TDot Performance carries top-of-the-line exhaust systems, mufflers and tail pipes at the lowest prices guaranteed. The sensor is a round, metal object with a single wire coming off its top. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket's most. Subaru of America, Inc. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most. What could be better than a high-quality Subaru Forester Oxygen Sensor offered with an amazing low price guarantee? Purchase from us and save a lot!. With the, the placement of the O2 sensors is different than the typical Subaru converter system. P0136 Subaru Description The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank.



The video above shows how to replace blown fuses in the interior fuse box of your 2001 Subaru Outback in addition to the fuse panel diagram location. View all of the recalls for Subaru Forester. Find the best used 2001 Subaru Outback near you. Make Model Submodel Year Engine Engine Code Location Subaru Forester GT 05/2000-05/2002 2. Our parts experts ensure part fitment via VIN to save you time and money. manufacturer: sensor mfg: 1 wire: 1 wire: 1 wire: 2 wire: 2 wire: 3 wire: 3 wire: 4 wire: 4 wire: function : general motors: delphi: violet : violet : violet : violet. (2001-current Impreza, 1995-1999 Legacy)E = Sedan 3rd gen. How to Check and Change a Mass Air Flow Sensor for a 1999 Subaru Forester: This tutorial walks you through how I checked and changed my Mass Air Flow sensor using the tools available at TechShop San Francisco. Subaru Factory Service Manuals (FSM) - Every Model - USDM/EU If this is your first visit, be sure to check out the FAQ by clicking the link above. 2001 Subaru Forester vehicles have 12 reported problems. cleared code and 2 days later back on. Find a vehicle make rapidly by using the search function in your web browser (CTRL + F) and for more details about the meaning of modes, check out our page OBD modes & PID. - posted in General: Chassis codes are as follows (according to Japanese models):1st letter determines model type:G = ImprezaB = LegacyS = Forester2nd letter determines body type:C = Sedan 1st gen. Thanks a lot and hope the info helps you out too. 2001 Messages: 9,450 Location: an O2 sensor went, and now it's back in the shop to have the catalytic converter. (Pre-cat) So then if your diagnostic code is B1 S2 that means Bank 1 Sensor 2 down stream (post-cat). HO2S Heater Control Circuit Low Bank 1 Sensor 2 is the generic definition for the P0037 Subaru; however your vehicle's manufacturer may have a different definition and information for the P0037 Subaru code. Aftermarket oxygen sensor (O2) will fit the following: 1992-2000 Subaru Impreza 1994-1999 Subaru Legacy 1996-1999 Subaru Outback 1998-2001 Subaru Forester O20061 This information is to be used as a guide only, if you are unsure whether this part fits your vehicle please ask. Subaru Impreza WRX O2 Sensor Eliminator.



Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. This applies to the Sensor 2 Bank 1 O2 sensor, but this tutorial may be helpful in removing the other sensors. With the, the placement of the O2 sensors is different than the typical Subaru converter system. This O2 sensor is responsible for all the Air/Fuel tuning and is imperative to the operation of the vehicle. /r/Subaru is a place for Subaru enthusiasts to show off their rides, discuss modifications, mechanical issues, industry news, etc. if you had a 4 cylinder it would be downstream after the catalytic converter. 5 L, 4 Cylinder Engine). Save on every Subaru Oxygen Sensor when you shop at AutoPartsWay. I scanned the codes and he had a P0325 code as well. Sensor was replaced, been a good 3 years with no problems. When attach a trouble code reader and come up with a P0420, your first assumption may be that you need a new catalytic converter, simply because the words catalytic converter are mentioned in the code. That impression (Oxygen Sensor Wiring - Subaru Forester Owners Forum) preceding is usually classed along with: o2 sensor wiring color codes, o2 sensor wiring colour codes, oxygen sensor wiring colour codes,. I had 2001 Subaru Legacy before twin turbo then 2004 WRX and this is my 4th manual car. The most recently reported issues are listed below. Any ideas on what color the wires are from the ECM that I need to check the voltage of?? (B134) No. I used a big crescent wrench and both came out super easy, but I've had to use a special O2 socket on some of my other cars. welcome to my blog here I will show you a little more what you are looking for Bank 1 Sensor 2 Location Subaru below there are some photos and a little about Bank 1 Sensor 2 Location Subaru that you can see and read, hopefully in accordance with what you are looking for. In the future production of Subaru Forester models, enthusiasts and clients will have something to look forward to because a more updated and upscale versions of Subaru Forester 2.



I'd really like to not have to drop 100+ on a new one *. While modern electronics have take over a lot of duties there is still the need for a dimmer switch or a toggle switch. Well i have subaru legacy 2001, My problem is when shift the 1 or 2 Gear and then press the accelerator the acceleration RPM slowly slowly increase when it reach to above 1500 RPM then take pickup f. Here, you are looking att he Subaru OEM Replacement O2 Sensor. Ramp up your engine's power and crank up its sound with our wide selection of exhaust systems. Order today by 4 P. /r/Subaru is a place for Subaru enthusiasts to show off their rides, discuss modifications, mechanical issues, industry news, etc. 5L H4 Downstream 2pcs - $23. O2 OXY OXYGEN SENSOR Suits Subaru Forester Liberty 2001-2008. 2001 O2 sensor code P0137 Hi All, Location New Hampshire Posts 3,305. I installed this Bosch Front Oxygen sensor in my Subaru Forester 2001 4 cyl. , this link shows bank 1 on a 2001 nissan maxima V6 being on the firewall side. The Hartford is refusing to pay for damages cited by a mechan 2 Answers. I have already performed the timing belt/head gasket service, some plugs, wires, oil changeect 2001 forester knock sensor problem - Subaru Outback - Subaru Outback Forums. eBay Logo: Shop by category. 2) Does anyone know what fuse this O2 sensor uses and where that fuse would be located? I'm wondering if I may have grounded a wire out on accident from the sensor (or if a wire melted), but I can't find any details on this fuse at all. P0136 Subaru Description The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. I know they aren't the same thing, but in this case we're. It detects the amount of oxygen in the exhaust gas compared to the outside air. 2001 Subaru Forester O2 Sensor Location.