No o2 sensor reading toyota sienna

No o2 sensor reading toyota sienna. Check your vehicle’s owner’s manual for the exact location of the fuse. TOYOTA > 2004 > SIENNA > 3. She nursed it back home, and I ran the codes and it came back with 2 codes, P0102 and P0102 (pending) ( anyone know why the same code would appear twice, once as pending? never seen it) Anyways, That code is for Since the sensor is integrated with the heater that heats the sensing portion, it is possible to detect the oxygen concentration even when the intake air volume is low (the exhaust gas temperature is low). Denso 234-9042 Air Fuel Ratio Sensor - Upstream Front Notes: Actual OE Part, Wideband. Denso Direct Fit Oxygen Sensor - 234-4163. Line: DEN. Mar 13, 2012 · downstream sensor output is alternating voltage from near 0V up to 1V based on readings where generally below 0. here is what i found for my 2006 van. Defective sensor wiring and/or circuit problem 6. Alternate Year Models. Bank2 Sensor 1 (Upstream) and Sensor 2 (downstream) were replaced 1 year ago. to/3w6vqdAwww. SKU # 1328625. TOYOTA > 2001 > SIENNA > 3. Part Number: 89465-04290. Fits Upstream Front or Jul 25, 2018 · 1 post · Joined 2023. Position: Driver Side. 2005 Toyota Sienna XLE Limited 6 Cyl 3. Equip cars, trucks & SUVs with 2008 Toyota Sienna Oxygen Sensor from AutoZone. If the fuel pressure is too high, it Oct 8, 2019 · 179 posts · Joined 2012. Part #: 350-34587. This runs the other half of the evap test which only happens when the car is turned off and cooling down. I did lots of research and discovered that this computer was recalled but I was outside the time frame and over the mileage Feb 27, 2024 · Step 1: Check the O2 Sensor Fuse. This is the simplest approach to getting to that top O2 sensor on the back cylinder bank in Toyota Sienna with 3. Bosch (2) DENSO (4) Duralast (2) NTK (3) Walker Exhaust (2) Price. $214. You will need to get at it from under the sienna. Fortunately we were by a town and found a mechanic to look at the issue. Part Number: 89467-0E280. more. Initial problem was indicated by "Check Engine" light. Check Vehicle Fit. If you look to the far left of this picture, you can see why it makes it easier if you remove the 2004 Toyota Sienna Air Fuel Ratio Oxygen Sensor. Any sugggestions and advise are great appreiciated! About this product. 70 MSRP: $307. 3 volts is a PCM generated representative voltage. A good oxygen sensor fluctuates between 100mV and 900mV. #1 · Apr 2, 2014 (Edited) This is my fourth fix it summary, third for the 2002 Sienna and I hope it helps you out. 17 We currently carry 15 Oxygen Sensor products to choose from for your 2005 Toyota Sienna, and our inventory prices range from as little as $80. 2009 Toyota Sienna Oxygen Sensor. Jul 15, 2013 · 2005 Sienna XLE sensor problems. Kathy NH. 201 & for B2S1 is 3. It will stay relatively steady as long as the mixture does not change rapidly. These are air-fuel ratio sensors not standard oxygen sensors. 100v and up to . Open the main menu on your scanner, and select “Diagnose”. PRICE: 199. I am having trouble locating it. downstream sensor output is alternating voltage from near 0V up to 1V based on readings where generally below 0. Jan 17, 2012 · The upper oxygen sensor is directly responsible for determining the mixture (more correctly called a Fuel/Air sensor). That would be in milliamps. . Maybe the shroud will do the trick. I have contacted four Toyota dealers and they were split on calling them AF Ratio sensors and O2 Equip cars, trucks & SUVs with 2002 Toyota Sienna Oxygen Sensor from AutoZone. Oxygen/Air-Fuel Ratio Sensor Downstream Rear. The safest way to test an Oxygen sensor is in-circuit using an Oct 27, 2014 · On my first generation sienna it's on the right hand side. You might need a long breaker bar and an O2 sensor type socket to remove the rear O2 sensor. the check engine light CEL was on. Feb 9, 2023 · How to fix a Toyota with a P0157 error code, "O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2). After the engine is up to temp the heater is no longer needed. Bank 1 sensor 1. It is also known as the "broadband lambda sensor" or "lambda probe. 5%. Either way, the sensor produces a voltage to the engine management computer, and Oxygen (O2) Sensor Thread Repair. He observed that the downstream O2 sensor had fallen out and was dangling by the wire. 57 MSRP: $229. 79) ^ [ Regular Inventory ] ($69. Soseveral years ago we were on a family vacation, driving through the Badlands, when our trusty Sienna started sounding sick. 2 $160. Now the oxygen sensor voltage for B1S1 is 3. You also need a 22mm combination wrench to loosen the sensor. Look for "2011 Toyota Sienna LE - Check VSC System". Price: BOSCH 13737 Bosch Validated Oxygen Sensor Info . Part #: 350-34474. Leaded fuel in an unleaded system will nearly always trigger this, given the differing properties of leaded fuel combustion and exhaust. Dec 10, 2015 · The 2001-2003 Sienna's have "faulty" ECUs (engine computer) that throw the P0420 code while the cats are still performing adequately. Line: WLK. Apr 8, 2022 · Have a 2005 Toyota Sienna and my oxygen sensor output voltage for B1S2 is 0. This video Sep 14, 2010 · P0420 is the code directly related to the catalytic converter, or bank 1, sensor 2. Toyota Engine Bank 1 and Bank 2 A/F and O2 Identification. Dec 8, 2021 · When I tried to open this. Lots of B2S1 videos and pictures, but I can't find any B2S2. Other less likely problems: an issue with the coolant temperature Jul 7, 2021 · Top 4 Reasons Why You Replaced O2 Sensor and Still Have Code. They do tend to get "lazy" around 100k miles Dec 2, 2009 · I purchased a 02 oxygen sensor (usos-4000) for 2001 toyota sienna Le that has 4 wires. Feb 14, 2022 · 4. "O2 Sensor removal tool on Amazon: https://amzn. So it looks like mine are in range. This data is essential for the car's computer to maintain a balanced air-fuel mixture, which is crucial for efficient combustion. Problems with fuel pressure can lead to an imbalance in the air-fuel mixture, triggering the P2196 code. P0102 - Mass Air Flow or Volume Air Flow circuit , low input. PCM software needs to be updated 7. All of the freeze frame data my scan tool data looks good besides the bank 2 ltft which is over the 10% threshold, it is at 12. Nov 21, 2009 · I had a new catalytic converter (magnaflow) and 2 new o2 sensors installed. To remove it from the white clip that holds it in place, pull the grey plug towards the front of the car. 3. 69. On top of low prices, Advance Auto Parts offers 3 different trusted brands of Oxygen Sensor products for the 2005 Toyota Sienna. MONITOR Feb 26, 2017 · If you don't have cruise control, just keep the throttle and speed as steady as you can manually. 3L V6 > Exhaust & Emission > Oxygen (O2) Sensor. 6v. I broke the little plastic screw/plug thing that holds the panel in and had to order a new one from Toyota to match the color. So Bank 2 Sensor 1 would be front bank, left, upstream. Toyota. We only sell parts from trusted brands like Bosch so that Oct 7, 2023 · The best thing to test the O2 sensor is using a scanner with the “Data Stream” function. Mar 20, 2021 · I have a 2004 3. Found a 2002 repair manual on scribd which lists Oxygen sensor at 11-16 Ohms and AF sensor at 1. 79) ^ Apr 2, 2014 · 41 posts · Joined 2008. 99 up to $259. 17 ( 31%) Apr 13, 2024 · When diagnosing the P2196 trouble code, common causes include excessive fuel injection, a faulty fuel pressure regulator, high fuel pressure, or issues with the engine coolant temperature (ECT) sensor. 5 minutes. Replaced with a new sensor (about $160) from local parts store. The OBD2 scanner is a very simple one. Jun 2, 2017 · T. OEM style. Park the car, turn it off and let it fully cool down for 1 to 1. The sensor may show a reading that is within the normal range but stuck in one place. (old one) 2 black, 1 white and 1 blue and the (new one) has 2 white,1 black and 1 gray and the instructions does … read more Jul 24, 2012 · 7 posts · Joined 2012. MSRP $150. 72 (30%)Check Feb 4, 2019 · NO! A wheel speed sensor is a different code. Set custom price range: to Jan 26, 2014 · So I picked up a Haynes manual and a code reader and pulled 3 codes: P0051 - HO2S heater control circuit low Bank 2 Sensor1. Price: BOSCH 18081 Bosch Validated Oxygen Sensor Info . The 3. 00 at all times. Part Number: REPT960928. Part #: 24658. Add to Cart. On top of low prices, Advance Auto Parts offers 3 different trusted brands of Oxygen Sensor products for the 2004 Toyota Sienna. " The air fuel ratio sensor is installed in the exhaust manifold or in the front exhaust pipe, before the catalytic converter. Other Name: Sensor, Air Fuel Rat. DENSO is the OEM manufacturer. Ignore the large yellow arrow (mistake in Microsoft paint). 2. This fuse is usually located in the engine compartment fuse box. b Apr 19, 2020 · Dude, that will never work! The second sensor (sensor #2), the one AFTER the cat is what triggers a P0420 or P0430, a Catalytic Efficiency failure. 10K views 10 months ago. Defective Engine Coolant Temperature Sensor 5. Regards, JC. Last night at the gas station the van died on her and wouldnt start. Best to do this when the motor is warm. 344, is the reading normal. Buy Online. 1998 Sienna XLE Silver Spruce Metallic. Follow-up with a OBD-II code reader (a $40 must-have item for a DIY repairman) pin-pointed a faulty Air/Fuel sensor on rear exhaust manifold. This code is thrown when: After the engine is warmed up, heated oxygen sensor output does not indicate RICH even once when conditions (a), (b) and (c) continue for at least 1. P0113 - Intake Air Temperature circuit, high input. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Line: NTK. This may be in the booster and not replaceable, Booster =$$$. Denso 234-9042 Air Fuel Ratio Sensor - Upstream Front 2018 Toyota Sienna Oxygen Sensor No. The video by tzimmerm in 2018 shows the location of the O2 sensor, as well. 76. Contains information that identifies engine bank 1 and engine bank 2 on the following engines: 1AZ-FE, 2AZ-FE, 2AZ-FE (PZEV), 1GR-FE, 2GR May 27, 2010 · 2001 Toyota Sienna 130,000 mi, Visitor. PRICE: 79. The Oxygen Sensor (#89465-0E040), a crucial electrical part in Toyota's Switch & Relay & Computer system, primarily monitors the level of oxygen in the vehicle's exhaust gases. Hi, my car is Toyota sienna 2003 CE. Summary from my research for my 2004 Toyota Sienna oxygen sensors: Bank 1 is the Rear bank (aka Right) Bank 2 is the Front bank (aka Left) Sensor 1 is Upstream. This happened on my 2001 Sienna. That is all the readings that I see. That said, some prescribe a preventative replacement of O2 sensors around 90k miles. So that leaves air leak before bank 1, fuel system fault, or faulty cat. 17 The A/F sensor heater circuit uses a relay on the +B side of the circuit. BOSCH 13737 BOSCH 15620 Bosch Validated Oxygen Sensor Info Downstream Right; FWD Choose [ Wholesaler Closeout -- 30 Day Warranty] ($46. 04 MSRP: $ 227. (The function name on scanner might be a bit different Feb 3, 2016 · Thanks so much for your response. 2000 Toyota Sienna Oxygen Sensor. Give yourself at least two hours for this job. It's odd that you'd get codes for VSC, too; there's no relation between the systems involved, as far as I know. 47. 0640, is this reading normal. This is the oxygen sensor located upstream and close to the firewall. I keep throwing a P0125 code: Insufficient Coolant Temperature for Closed Loop Fuel Control. 99; Wiring Harness Length: 14. However, they want about $1500 for the ECU. 5L transversely mounted V-6. #2 · Mar 16, 2010. About this product. So one of the codes is MAF sensor but there is a A/F sensor code plus the IAT, which according to my Haynes Apr 1, 2007 · Here you can see the location of the o2 sensor plug. 24. 6V are rich (or something similar, it varies a bit between models). Year Warranty. Other Names: Rear Oxygen Sensor, Sensor Oxygen. My 02 Sienna started triggering the CEL with a P0420 code at around 140K miles. But the check engine light come back again. I've reset it twice and it keeps coming back after ~5 minutes of driving. 29 Reviews. 99. I just wanted to add to this site -- I have recently had good success getting rid of recurring P0420 and P0430 using O2 spacers on the downstream sensors. 3L. Connect your voltmeter to the oxygen sensor and read the voltage signals. Oct 9, 2015 · P0125 is "Open or short in heated oxygen sensor circuit" or "Heated oxygen sensor". The CEL came on, and the code is P0135, bank 1, sensor 1. Either way, the sensor produces a voltage to the engine management computer, and Oct 27, 2014 · Where are the oxygen sensors on a 2007 Sienna located, specifically Bank 2 Sensor 1? Any pictures would be appreciated. TOYOTA > 2010 > SIENNA > 3. I had them install the o2 sensors 3-4" inches in the pipe on either side of the new cat. Get Yours Today! We have the best products at the right price. Jul 16, 2021 · My Bank 2 S2 reading at idle is often around . Other Name: Sensor, Air Fuel Ratio. Anything above or below that range is an indicator of a bad oxygen sensor. 330 & for B2S2 is . $271. Price: BOSCH Bosch Validated Oxygen Sensor . my wife has a 2005 Sienna XLE. Defective PCM I would probably focus on 1, 2, and 5. Failed O2 sensors or connections are also possible culprits. These codes do not point out to a specific issue but they can help hint at the root cause of the issue. This page provides information on the proper identification of engine bank 1 and engine bank 2 for correct A/F sensor and oxygen sensor replacement. Walker Direct Fit Oxygen Sensor - 350-34587. Mar 20, 2020 · Never place an Ohmmeter (or any meter not designed for O2 sensors) across the E1/OX terminals of an oxygen sensor - that will kill the sensor instantly !! Yes, you can check the heater B+/HT without any issue but if you got the pins wrong - you're out the cost of a new sensor. 2. (old one) 2 black, 1 white and 1 blue and the (new one) has 2 white,1 black and 1 gray and the instructions does … read more Walker Direct Fit Oxygen Sensor - 350-34474. HINT: Bank 1 refers to the bank that includes cylinder No. 87. On top of low prices, Advance Auto Parts offers 4 different trusted brands of Oxygen May 27, 2010 · 2001 Toyota Sienna 130,000 mi, Visitor. 0L OE sensor technology. The car, a 2004 LE FWD, has 297k miles on it now and for the past few years would set check engine lamp (plus TCS and Trac lights, of course Apr 2, 2021 · If your gas mileage is fine and your emissions test (if your State has one) is fine and your car is running smooth and quiet, leave well enough alone. The most common codes that people will see in this particular situation are P0134, 0138, and 0139, though you are probably seeing P0420. Fits Upstream Front or Upstream Feb 20, 2021 · wthomsen1956-I made a post about this very sensor in this section not long ago. #6 · Aug 17, 2023. Notes: Actual OE Part, Wideband. TOYOTA > 2013 > SIENNA > 3. 700 v but it bounces around sometimes as low as . 5 hours ( depending on how hot it is outside ). OE Replacement Series Oxygen Sensor - Sold individually. 0. MONITOR Before Catalytic Converter Oxygen Sensor, 4-wire, Air/Fuel sensor. $161. 5L-V6 3. This allows you to see how fast the voltages will go up and down. The size of the sensor is 22mm. O2 sensors generate their on voltage at high temps. Mar 20, 2007 · The O2 sensor needs to be at ~600F for its full output voltage. Apr 2, 2021 · If your gas mileage is fine and your emissions test (if your State has one) is fine and your car is running smooth and quiet, leave well enough alone. Fits Upstream Right; with California Jan 25, 2011 · P2195/ air fuel ratio sensor stuck lean. I replaced it with one generic sensor USOS 4000 (resistor is 4ohms instead of about 1 ohm of the original - someone wrote in the blog). Good news is that's the easy one to get to. 0 Reviews. $113. 81 up to $299. Price: BOSCH 13540 Bosch Validated Oxygen Sensor Info. Sensor 1 refers to the closest sensor to the engine assembly. 8-3. There are two upstream and two downstream sensors. The original ECU catalyst test is too stringent. Air Lift 1000's. Manufacturer Note: LH. Check if this fits your 2011 Toyota Sienna. I Googled it, and it's telling me that it's the O2 sensor, B2S2. Check out this video. Jul 13, 2014 · Oxygen Sensor replacement. 2003 Sienna LE, 170,000+ miles. Easy to use parts catalog. Sensor 2 refers to the furthest sensor away from the engine assembly. Description: Fits Tacoma Oxygen Sensor - Repair or ReplaceA failed Oxygen Sensor will often have no noticeable symptoms beyond a check Engine NTK Direct Fit Air-Fuel Ratio Sensor - 24658. You Save: $67. Part Number: 89467-08010. Oxygen Sensor. Air fuel ratio sensor. Vehicle Fitment. 600-. Brand. #2. I need suggestions about how to remove and replace this part. 4 Ohms (at 20deg C). 0L V6 > Exhaust & Emission > Oxygen (O2) Sensor. Price: BOSCH 13540 Bosch Validated Oxygen Sensor Info . threehappypenguins Discussion starter. Likely Causes For P0420 Trouble Code In A Toyota. 28 posts · Joined 2016. Test if the if the O2 sensor will go rich when you add propane, if it doesn't than yeah, your car might be eating oxygen sensors, but that's really unlikely. 1 Year Limited Warranty. Price: Alternate: No parts for vehicles in selected Jan 9, 2019 · Buy Automotive-leader 234-9012 4-Wire Air Fuel Ratio Sensor Upstream Oxygen O2 Sensor 1 Bank 2 for Toyota Sienna CE, LE, XLE, Limited Mini Passenger 3. i ran the engine to normal operating temperature, and when watched AF sensor and O2 sensor reading together for each bank, and the voltage reading will vary inversely to each other 2021 Toyota Sienna Air Fuel Ratio Oxygen Sensor. 2007 Toyota Sienna Oxygen Sensor. Apr 30, 2019 · P0420 and P0430 fixed with O2 sensor spacers. Part # DL207-0324. The most common sign of a failing or damaged oxygen sensor is the Check Engine light appearing on the dash. They do tend to get "lazy" around 100k miles Dec 1, 2012 · I used an open ended wrench (I believe it was 23 mm) to get the old sensor off. We currently carry 14 Oxygen Sensor products to choose from for your 1999 Toyota Sienna, and our inventory prices range from as little as $36. The sensors 1 (bank 1, sensor 1; and bank 2, sensor 1) are air/fuel ratio sensorsa different beast. #7 · Aug 19, 2012. A failed catalytic converter. 4V are lean and above 0. 99 up to $235. You Save: $ 93. I have three questions which is confusing and complicated. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor. Part Number: BS13540. 86. Dec 5, 2017 · The readings for the front the sensor 1, sensors look normal. Denso is the OEM original manufacturer brand, owned by Toyota. Positions: Right Rear, Right. Application: Upstream sensor (located before catalytic converter) Notes: OE Fit, Wideband. 2003 Toyota Sienna CE 6 Cyl 3. The 10mm bolts are show by the yellow arrows. 5L V6 > Exhaust & Emission > Oxygen (O2) Sensor. The engine will run on default settings until it comes up to temp. In the “Diagnostic Menu”, tap the “Data Stream” icon. Bank 2 refers to the bank that does not include cylinder No. You need to remove the 3 10mm bolts on the cover to access the sensor. Where is it? Jan 14, 2021 · I am getting only a p0430 code but the reading from my downstream o2 sensor is holding steady at 0. Bank 1 Sensor 1 (Upstream) and Sensor 2 (downstream) are still original Toyota. This occurs because the engine computer has detected an abnormally high or low concentration of unburned hydrocarbon or fuel in the exhaust either ahead, behind, or on both sides of the catalytic converter. If the fuse is blown, replace it with a new one and see if the problem is resolved. Part #: 234-4163. Oct 9, 2015 · Really, lots of things can cause a lean code, but it's usually not the O20 sensor. It might also be called 'front O2 sensor'. Fits Upstream Right or Mar 24, 2014 · First post, thanks in advance for reading. Guaranteed to Fit. My 2006 Sienna has four Oxygen sensors and all of them has four wires. The heater brings it up to temp faster. If you throw your OBD monitor on it with the key ON but not started, connect it and set it to monitor the O2 graph. #4 · Oct 9, 2019. this sensor usually trips P0420 code if it works bad (could be also a bad cat converter too if sensor is OK). Upstream Right. 3L-V6 Gas 2004-2010 89467-08040 234 9012: Oxygen - Amazon. Dec 2, 2009 · I purchased a 02 oxygen sensor (usos-4000) for 2001 toyota sienna Le that has 4 wires. Or is my Bank 2 Sensor 2 O2 sensor bad. 17 ( 31%) The A/F sensor heater circuit uses a relay on the +B side of the circuit. The first thing you should do is check the O2 sensor fuse. No matter the situation, Advance Auto Parts has the Oxygen Sensor product you desperately need. BMW folks (an overzealous bunch) monitor these things closely. Pick Up In-Store. Other Name: Sensor, Oxygen No. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter. TOYOTA > 2002 > SIENNA > 3. Code P0155 bank 2 sensor 1 (the sensor in the front). Here are a couple of the parts to take a Jan 23, 2020 · last year my 06 sienna got p0430, and then p0420, and ended up spent about $300 buying 4 aftermarket denso sensors from rockauto to address my check engine light. If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. I have a OEM replacement part, but can't figure out how to get to the old one. Oxygen Sensor Downstream; OE. 12 ( 30%) Check the fit. Start the car and watch the graph. $73. An air/fuel ratio sensor looks like an O2 sensor but works off of different voltages. #1 · Jun 2, 2017 (Edited) My 2005 Sienna has the engine light on and the P code is P0157. The lower sensor is simply a tattle-tale device to report on how well the catalytic converter is doing it’s job of burning off any remaining hydrocarbons. Duralast Oxygen Sensor DL207-0324. DENSO 2349042 Upstream Front (bank 2 sensor 1, {left}, air fuel ratio sensor) DENSO 2344168 Downstream Front (bank 2 sensor 2, {left}, oxygen sensor) DENSO 2349012 Upstream Rear (bank 1 sensor 1, {right}, air fuel ratio sensor) DENSO 2344516 Downstream Rear (FWD Sep 13, 2021 · The air fuel ratio (A/F) sensor measures oxygen content of the exhaust in a wider range. Sensor 2 is Downstream. Mar 13, 2012 · fenixus. Quantity per car: 2. Does this vehicle use Air Fuel Ratio sensors? Or does it have all O2 sensors? I know this vehicle has four sensors in relation to the two catalytic converters. TOYOTA > 2000 > SIENNA > 3. add vehicle Batteries Dec 1, 2012 · I used an open ended wrench (I believe it was 23 mm) to get the old sensor off. Oxygen/Air-Fuel Ratio Sensor Downstream Front. Denso 234-4516 Oxygen Sensor - Downstream Rear Easy access on the pipe coming the rear manifold/cat. (a) Engine speed: 1,500 rpm or more. Toyota updated the ECUs to correct the catalyst test. Part Number: 89465-0E210. After replaced two O2 sensors: Bank1 sensor1 and bank2 sensor1. But then again, see #1. 800 v. It is not the actual output reading. If you can do this then you may be able to get the harness out without removing the seat. 1. Oxygen Sensor Upstream; Bank 2 Sensor 1; With 4 Wires. You Save: $ 68. Mar 15, 2010 · 2 posts · Joined 2010. What does that indicate? To avoid replacing the B2 CAT ($1000) I'm hoping there is another option. So the cat seems to be good, but what else could cause the code. The location of this sensor is on the backside of the engine (firewall) located by the cylinder head before the converter. May 31, 2014 · "O2 Sensor1 Equivalence Ratio" is actually what you can think of as the air-to-fuel ratio corrected for the stoichiometric ratio (essentially this is the "midpoint" of the curve labeled "AFR voltage chart" here ), which as you can see hovers closely around 1. com FREE DELIVERY possible on eligible purchases 2005 Toyota Sienna Air Fuel Ratio Oxygen Sensor. Also, do not go by Auto Zone parts guy diagnosis! Figure it out or, go to a real mechanic! P0051 - Bank 2 Sensor 1 O2 sensor. Vehicle Specific. Jul 4, 2013 · I just replaced two O2 sensor to try fixing engine checking light problem. As part of the emission control system, the o2 sensor for Toyota Sienna reads the air-fuel ratio of the exhaust fumes coming from the engine. Number Of Wires: 4. 3 LE Sienna. Replaced by: 89467-48050. The sensor concludes whether the mixture is too rich, meaning high oxygen content, or too lean, meaning low oxygen content. Fits the following 2021 Toyota Sienna Submodels: We currently carry 17 Oxygen Sensor products to choose from for your 2004 Toyota Sienna, and our inventory prices range from as little as $79. kn ys oa zm be ga yv ms xu yn