Toyota mr2 oxygen sensor problem

Primary 2003 Toyota MR2 oxygen sensor measures the content of oxygen in exhaust gases, and secondary O2 sensors monitor the operation of a catalytic converter. Toyota SFI: MR2 1. 2L: Service type Oxygen Sensor - Rear/Lower/Downstream Replacement: Estimate $321. Toyota MR2 Spyder 2002, Oxygen Sensor by TRQ®. Line: WLK. The outlet temp of a working cat should also be 80-100F higher than the input at idle as measured with an IR meter. Here you can see both O2 sensor locations. Toyota. Aug 23, 2010 · Postcat sensor in OEM Part Numbers: 89465-17201. Dec 17, 2009 · The O2 sensors hooked up are one on the passenger side by the oil dipstick, and another on the driver side of the engine, right above the transmission. 35V (approx) then you won't get into closed loop at 1000rpm idle. i think there is a guide on here somewhere. 62, limit is 1. The lead really is bad for the plugs as well in the kart, they tend to fail quite quickly which was one of my main reasons for trying to go back to lead-free pump gas. Also isn't passing emissions in WA. Apr 19, 2007 · If you go through the menu and get to the MR2/MRS sensor, you'll notice that the after cat sensors they sell only have two wires. 234-4603 = 89465-17201. 35V and 1000rpm and with a warm engine the injectors are showing 5ms duration (lots of fuel!) so I would guess you ought to see much more than 1. 8L (Fits: Toyota MR2 Spyder) Genuine Denso Sensor - DOWNSTREAM. SOLUTIONS. Get the best deals on Genuine OEM Oxygen Sensors for Toyota MR2 Spyder when you shop the largest online selection at eBay. It would be a good idea to change both O2 sensors. This seems all related to the O2 sensor. 2000 super white, phantom grey hardtop, 3. Quote. I need to replace sensor 2, after the c/c. I cleaned the MAF, again, didnt help. Jun 10, 2003 · 186 posts · Joined 2003. Other Names: Rear Oxygen Sensor, Sensor Oxygen. When looking into the engine, is that the one on the left or ob the right? Heated Oxygen Sensor Circuit Slow Response Bank 2 Sensor 1. Advance Auto Parts has 9 different Oxygen Sensor for your vehicle, ready for shipping or in-store pick up. If the misfire goes to cylinder 4, then your coils are failing. When it comes to your Toyota MR2 Spyder, you want parts and products from only trusted brands. 2) 'Back Pressure'. I had the code cleared and I drove around for the rest of the day without an issue. Aug 27, 2016 · The topic was my MR2's oxygen sensors. Buy Online. Pick Up In-Store. 10 people have reported this. If you install an aftermarket header or turbo system (all) that puts both sensors at the same spot in a single collector or pipe, AND you’re still using a stock 1ZZ ECU, you need to split one sensor signal to both ECU inputs to avoid problems with Apr 9, 2007 · It should be an easy enough job to change the Oxygen/Lambda sensor. 0. Nov 27, 2023 · Sensor o2 oxygen mr2. What type of tool and brand do I use? I'm soaking them with PB blaster now. If you're comfortable cutting and splicing wires, and you can cut the connector off the O2 sensors you're replacing, then use the universal sensors. Here are a couple of the parts to take a Apr 20, 2023 · By following the Toyota Rav4 oxygen sensor wiring diagram, you can ensure that your Rav4’s oxygen sensor is properly wired and functioning properly. not that much but about 3 liters in three 2004 Toyota MR2 Spyder Oxygen Sensor. NEW SMT Pressure Sensors and Accumulators! Apr 29, 2012 · Posted on Sep 08, 2009. Prior toy did not have O2 sensors. a. You can get a cheaper one that you splice but it's confusing to understand which wires to splice Jun 9, 2012 · Toyota Mechanic: Dave Nova. The O2 sensor won't cause that problem as you descrived it. Jun 29, 2006 · WOW i was now going to make a thread about testing the o2 but mines is different, anyone knows how to test a SINGLE wire o2 sensor? the ones on the jdm 3sgte, the bgb only has the test for the us oxygen sensor. This week was the 2nd time in a two-year period that one of the o2 sensors on the car has failed. Also I'm losing some coolant. 2) Insert new washer, insert new sensor, tighten bolts. This code specifically applies to Toyota vehicles and can affect the performance and emissions of the engine. Hi Eric, Thanks for a quick response, the guy in the garage just told me this morning. The exact code number is important however, a PO171 is difficult to diagnose as it can be either a drifting O2 sensor or a dirty MAF. May 11, 2005 · Engine at operating temperature. $113. Nov 12, 2020 · 6351 posts · Joined 2011. Most of the time it is the O2 sensors that the computer is monitoring to go into closed loop. Free shipping. Clarification: 2002 MR2 spyder O2 sensor. #2 · Jun 10, 2003. Apr 29, 2012 · SOURCE: p0051 code, where is the sensor located, where is. I took the car down to Mr T and they told me it would cost £250 to fix it and replace one of the sensors, found fault code P0141, O2 Sensor 2 in bank 1 required. Jun 21, 2008 · Since returning from our Corfu trip a CEL decided to make itself known, the code showed it to be one of the O2 sensors. Buy a 2002 Toyota MR2 Spyder Oxygen Sensor at discount prices. 99. 2000-2002 MR2 Spyders were prone to failure of the pre-catalytic converters, which can cause destruction of the engine. Allow the engine to return to idle and the emissions to stabilise. heater. Oct 26, 2008 · The code refers to what we call the 3rd O2 sensor, but is more accurately called bank 1, sensor 2. Walker Direct Fit Oxygen Sensor - 350-34099. Today I'm going to show you how to replace the downstream oxygen sensor on a 2000 - 2005 MR2 spyderAlso remember to subscribe so that I can win my sub war!#M Apr 30, 2009 · I have a 2003 MR2 Roadster which has the dreaded engine management light showing. 1 Year Limited Warranty. Felpro Part number is 23591. 8L Upstream Downstream O2 Sensor 234-4624 234-4603 02 Sensor dummy DOSKJOK 234-4149 O2 Oxygen Sensor Air Fuel Ratio Downstream 250-24420 Compatible with RX350 Highlander Sienna Solara Camry tC LS460 1Pcs Nov 7, 2008 · Mass airflow sensor is a hot-wire sensor that runs a current through a wire and senses the temperature to measure the air mass flowing through the pipe. Oct 9, 2019 · Way off base here. or if the pump is really bad, it will not allow normal running. It is giving codes of 21, 25 and 26. Some of the limits are 1) Only one O2 Sensor heater is drawing power from the ECU. 1st time posting, I hope I'm in the right place. I should feel free to keep driving the car when the 'check engine' light Mar 9, 2012 · The only difference is OEM sensors come with a connector and two different harness lengths, depending on if it's upstream or downstream. These sensors are heated and located in the mid pipe just past the oil pan. #2 · Jun 3, 2006. 10-12-2011, 11:55 AM. (2) $71. If memory serves right, the O2 sensors require some heat in them in order to work, so they have a heating circuit built into them. 0l 2001 2003. Nov 4, 2010 · The early is a 1 wire sensor the later one is a 4 wire heated sensor. com. Even if you reset the light, if the underlying problem is not addressed it will come back on. Toyota MR2 O2 Sensor Eliminator. Toyota Model: aygo. assess the engine idle speed. 2004 Toyota MR2 Spyder Vehicle/Transmission Speed Sensor; 2004 Toyota MR2 Spyder Engine . Reviews of the socket types online say those spread and round off the sensor's bolt ends. I'm new to the MR2 but not new to wrenching. After going back to the garage several times they replaced the o2 sensors as they could not find anything else to try. Some can last hundreds of thousands of miles without problems. A Toyota Mr2 Spyder Oxygen Sensor Replacement costs between $506 and $658 on average. the code is p0135, p0141 and p0155. To be honest, the terminology is just the accepted norm, nothing technical. 1 volts. Nov 15, 2017 · The codes that I get are P0031---HO2S Heater Circuit Low Voltage Bank 1 Sensor 1. Posted July 29, 2023. 72: 1992 Toyota MR2 L4-2. It is constantly making a comparison between the Oxygen inside the exhaust manifold and air outside the engine. It could be the B1S1 sensor heater element has failed which would be CEL P0135. Is the car AFM equipped or MAP, I'm guessing you're not in the US (3SGE MK2)? May 2, 2008 · The test is supposed to pinpoint a cat problem, which is important for emissions. Order Online or Call 866-596-1970. Bank 2 is passenger side, sensor 1 is the one up closest to the exhaust manifold. i know the two black ones are heater. Fortunately these can be replaced. HC (PPM) is 210, limit is 170. Here at Advance Auto Parts, we work with only top Nov 5, 2016 · Posts: 1,945. Toyota part number 90917-06065. The MAF and O2 sensors work together. May 24, 2007 · So if you are using this ECU and your AFM is below 1. Phase I=140whp Phase II=230whp Phase III=Cant tell the clutch pedal from the brake! 2000 Toyota MR2 Spyder Oxygen Sensor. P0051---and again same problem for Bank 2 (second upstream sensor) I replaced all the O2 sensors, ( all are new Denso--same as put in by manufacturer). #2 · Jun 16, 2018. Excessive Oil Consumption. First Name:jamie. 7 people have reported this. 3) use a 'Tail Light Bulb' as a 'Dummy Load' to keep the ECU happy Jun 3, 2006 · 1124 posts · Joined 2006. They should be oscillating. This sensor meticulously monitors the ratio of air and fuel in the engine and communicates this data to the vehicle's Aug 16, 2017 · MAXFAVOR 2Pcs Oxygen Sensor Replacement for 2005 2004 2003 2002 2001 2000 Toyota MR2 Spyder 1. Get a free detailed estimate for a repair in your area. Find aftermarket and OEM parts online or at a local store near you. Jan 25, 2010 · If the light is flashing there is a severe failure of the emission-control system that is causing the engine to misfire to the point that the catalytic converter is damaged each time the Check Engine Light flashes. They are available on the internet - try here Clicky. Part #: 350-34099. Aug 12, 2017 · The 87-89 MK1B NA has the same 4 wire heated O2 sensor found in the S/C MR2. #10 · Nov 15, 2020. SOURCE: toyota mr2 roadster 2001 engine light on code po141 oxygen sens. All fit 2000-2005 Toyota MR2 Spyder and more. Toyota MR2 Oxygen Sensors are necessary components that are attached to the exhaust system to improve fuel efficiency. Positions: Right Rear, Right. Here are the pics of the oxygen sensor problemToyota oxygen sensor problem, toyota oxygen sensor problem Sonde o2 p0135 lambda ho2s heated carparts malfunction p0050 catalyseur p0052 detected failing oxygene converterAir fuel ratio exhaust gas oxygen sensor for toyota rav4 2. You take to Blue and White wires from one collector mounted O2 Sensor, and feed BOTH O2 Sensor Plugs in the Engine bay. signal and return. Thanks for any help. 1) use a 'Dummy O2 sensor that is just hooked up as a heater load ( Black wires only ) and place the O2 Sensor somewhere where it will do no damage. A faulty heater code means that either the heating circuit has failed or the circuit is not getting any power (usually because of a bad wire). The best part is, our Toyota MR2 Spyder Oxygen Sensor products start from as little as $80. I'm pretty sure this is the correct one but I am checking with the guy who bought it for the project we did on his car with the early JDM 3SGTE. Plug in type (just remove old and plug back into the wiring harness connector) is about $90 at Autozone. Feb 17, 2006 · I just had my car show code P0141, Heated Oxygen Sensor Circuit - Bank 1 Sensor 2. The O2 sensor is heated in this car so you dont have to worry about having it close to the head, the temp of the exhaust gas won’t be a problem. There are 2 other O2 sensors on the engine, known as Bank 1, Sensor 1, & Bank2, Sensor 1. New Magnum MR2 Oxygen sensor bypasss will increase the overall potential of your Car Truck SUV. #2 · May 1, 2007. This did not fix the problem and the car was sent to Toyota garage. black '01, red lthr - Zing: TM duals, Injen CAI, quick-shift, anti-flex, frnt brace, r-braces, ss-brakelines, STBs, TBR, decatted. If you're lucky, you can just re-tap and you'll be good to go. Wholesale Prices, Fast Shipping. If the code goes away then you are golden. The most common codes that people will see in this particular situation are P0134, 0138, and 0139, though you are probably seeing P0420. OEM Denso Oxygen Sensor Upstream For Toyota MR2 (2. 20. 89465-29355 1989/12 - 1993/11. it will cause problems upon acceleration. From the factory the 2000-05 MR2 Spyder has 2 upstream O2 sensors, each reading two cylinders. For the misfire, swap coil pack from cylinder 4 with 1 of the other 3. Accelerator Pedal Position Sensor Range/Performance Problem. May 8, 2005 · I'm looking to replace my original O2 sensor on my 89 SC mr2 to compliment my new Grunt Box, and of course avoid the stealerships parts counter has anyone used an aftermarket O2 sensor on an mr2 4agze successfully? what kind and from where? Thanks for any help cheers Casey Top 2002 Toyota MR2 Spyder Problems. Rattle from Engine at All Speeds. These 2 are responsible for measuring the fuel air mix that has just been burnt and exhausted by the engine. There there's P0130, etc. Jan 23, 2008 · They struggled to find any problem and there was no check engine light at this point. Easy to use parts catalog. The stock location in the S/C and late model 87+ MR2s is in the mid pipe, right around where your location 3 is, but just a bit further back. 77 - $622. The ecu only reads 1 wire which is pinout ox1. Any idea what the other wire does?? It goes to HT of the ECU. 2L engine) 1991-1992. 5 seconds. Shop wholesale-priced OEM Toyota MR2 Spyder Oxygen Sensors at ToyotaPartsDeal. This is the right one. He made the following statements. . When I touched it was feeling like a powder like texture, but I couldnt remove it with my bare hands. In southern Cal. The early 85-86 MK1 A has a single wire in heated O2 sensor mounted in the exhaust manifold. Nov 11, 2013 · 2003 SMT Transmission Problem. Not being one to mess about I decided to replace all three, (2 pre-cat, 1 after cat) also being of sound mind and body (including my wallet) and having bought sensors previously The Oxygen Sensor (#89465-12840), a crucial electrical part in Toyota's Switch & Relay & Computer system, primarily monitors the level of oxygen in the vehicle's exhaust gases. This will help you get the most out of your vehicle’s engine performance, fuel economy, and overall dependability. Jan 30, 2024 · Code P0031 in a Toyota is a diagnostic trouble code that indicates a problem with the oxygen sensor heater control circuit bank 1 sensor 1. , bought a 2003 Mr2 Spyder with the SMT 8 months ago, 68,000 miles and now have some sort of transmission issue. 55 - $494. At high mileages, which were defined as over 125,000 miles, the MR2’s automatic transmission may not shift correctly. (Do not start engine) Short terminals TE1 and E1 of the check connector of the diagnosis connector cluster. Apr 11, 2017 · Oxygen Sensor. 2) use a 20 Ohm 30 Watt Resistor ( it's BIG ) and place it somewhere where it will not melt stuff. Choose top quality brands AC Delco, Autopart Premium, Bosch, DIY Solutions, Delphi, Denso, DriveBolt Apr 23, 2009 · 4 wire to 1 wire O2 sensor. Guru, You explained that one is located before the c/converter and one is located after. The enging should go into closed loop operation lnog before it is fully warmed up. It is best to remove the MAF and clean it by spraying it with electrical cleaner. Get Yours Today! We have the best products at the right price. Jan 12, 2008 · DO NOT, DON'T, NEVER!!!! Hard wire the O2 sensor to the harness if your not using a Toyota O2 sensor and you thinking about cutting the pulg to hard wire it in DON'T this was done on my SC. I picked up a new o2 sensor and replaced the sensor at the precats, on the drivers side. I need an after cat O2 sensor wiring diagram stat!! I need to know which wires are ground. 2. Timing chain/sprockets may need replacement due to wear and problems with VVTi. Position: Upstream. The brown wire is ground I checked that. You can get a DENSO one from ebay. 234 4209 O2 Oxygen Sensor Upstream 4 Wire For Toyota Rav4 Camry Lexus Com. Jul 7, 2021 · Top 4 Reasons Why You Replaced O2 Sensor and Still Have Code. Mar 21, 2020 · Question about 1992 Toyota MR2 1 Answer I have a toyota mr2 turbo 1992 and have a problem with the check engine light me and my dad did a diagnostic test and found out it was the oxygen sensor, we changed the sensor but the light stayed on. When you really need to make your Toyota more controllable and would like to make your motor more efficient, the only choice is a revolutionary Toyota MR2 O2 Sensor Eliminator. Hi all, my daughters 2018 aygo came up with the engine warning light, traction control and tyre pressure warning lights, after reading it seems it's quite common and that its more than likely an o2 sensor. If any of these O2 sensors fails, ECU can no longer get correct signal outputs for the proper air to fuel ratio, which can result in poor engine performance and decreased gas mileage. 0L Turbo: Service type Oxygen Sensor Feb 12, 2006 · Problem is if it contains lead and you cannot run it in anything that employs an O2 sensor as the lead stuffs the sensor. Would anyone in the group care to comment? This equipment (the o2 sensors) only exists in California. Built to fit and function exactly as the part it is replacing, the Jul 29, 2023 · 16. Apr 01, 2009 • 2001 Toyota MR2 Spyder. I’ve had all 3 of these cars at one time or another and this is what I have observed Mar 22, 2011 · Low prices on Oxygen Sensor for your Toyota MR2 at Advance Auto Parts. May 4, 2013 · A solution to this problem, was to ‘Split’ the O2 Sensor Signals to both fueling banks. Originally posted by slimdigits. P0037---same problem for downstream sensor. The two most common issues that the Toyota sports car has seems to happen when the vehicle has a lot of mileage on its odometer. Number Of Wires: 4. 2L: Service type Oxygen Sensor - Rear/Lower/Downstream Replacement: Estimate $382. The output of the sensor is usually between 0 and 1. The O2 sensors have built in heaters to allow them to operate more quickly and go into closed loop operation sooner. Raise the engine speed to around 2500 rpm or half the maximum engine speed if this is lower. Free shipping on many items | Browse your favorite brands | affordable prices. 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 Jun 25, 2009 · B1S1 implies a problem with the Bank 1 Sensor 1 O2 sensor. Great Spyder stuff for sale: Center console arm rests - Top Straps - SMT Repair Seals. A Toyota Mr2 Oxygen Sensor Replacement costs between $257 and $393 on average. Aug 18, 2007 · The cat uses oxygen as a catalyst for its process and there should always be less O2 in the stream after a cat than before it. Diagnostic Codes: Normal System Operation: (no malfunction) 1985 - 87 The light will blink once every 4. At the bus station still there. Pre-cats can fail a few thousand miles or a hundred thousand miles. 1. Aug 18, 2023 · Here in the People's Republic of CA, with it's own 'special needs' CARB gear, I was told that he machine cycles through different phases to seek changes, including from downstream sensor, it'll know if it induces more RPM, fuelthere better be a response or it'll know you just bypassed something. i dont know how many sensors there are, on the mk2 MR2 there is only one - I've heard of some newer cars having 2 (one before the cat and one after). To my understanding the O2 sensors needed to be hooked up are the one above the dipstick, and an O2 sensor behind the driver side tail light (which gets information from the post cat O2 sensor). I believe it needs a new O2 sensor. Contact Us : Live Chat or 1-888-905-9199 Denso Downstream Oxygen Sensor for 2000-2005 TOYOTA MR2 SPYDER L4-1. 1 - HT (yellow-green) 2 - OX1 (white, w/ shield to E1) Get the best deals on Oxygen Sensors for 1994 Toyota MR2 when you shop the largest online selection at eBay. All vehicles. [This mind intentionally left blank. Felpro equivalent is about $4 each. 36: Shop/Dealer Price $366. ] [Oregon ( ʔor'əgn): That area between 42ºN and 54º40'N, the Rockies and the Pacific] Toyota MR2 Replace Oxygen Sensor When Servicing EGR System - 6 reports. ok, all 3 are for the heater circuit for the O2 sensors. Hold this speed steady for 20 seconds to ensure that the inlet and exhaust system is properly purged. Description: Fits Tacoma Oxygen Sensor - Repair or ReplaceA failed Oxygen Sensor will often have no noticeable symptoms beyond a check Engine Apr 13, 2005 · Don't worry, Karl, this is a very common issue. Brand New: DENSO. Nov 5, 2008 · 2 Answers. again, will cause acceleration problems. Dec 23, 2014 · Question with the o2 sensor: The redtop o2 sensor is heated. Check Vehicle Fit. Oxygen Sensor. Jun 15, 2018 · 1401 posts · Joined 2011. Verified by NipponDenso: 234-4624 = 89465-17180. Oxygen/Air-Fuel Ratio Sensor Upstream; Bank 1 Sensor 1. This data is essential for the car's computer to maintain a balanced air-fuel mixture, which is crucial for efficient combustion. A Toyota MR2 Oxygen Sensor is the system used to check the oxygen level in a vehicle's emissions. Feb 11, 2006 · Hey there, I have a 3sgte 2nd gen, and when I last removed my downpipe, I saw that my o2 sensor tip was very white and also the turbine wheel on the turbo was white. These codes do not point out to a specific issue but they can help hint at the root cause of the issue. In the engine compartment fuse box, check for a blown fuse or relay that will be labeled either O2 heater or ECU. An Oxygen sensor is a chemical generator. May 1, 2007 · spydercam. CO (%) is 2. Learn about this problem, why it occurs, and how to fix it. Part Number: 89465-04290. Heat the body around the O2 Sensor to cherry red with a MAPP gas torch. Jul 21, 2022 · Method of Inspection. Save Big On This OEM Toyota Oxygen Sensor, Part #89465-17180 for 2000-2005 Toyota MR2 Spyder. 9182 posts · Joined 2005. 75: Shop/Dealer Price $443. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Driving it to work, it was difficult to get any speed and when "shifting", stick or from the steering wheel, it seemed to have a difficult time "catching" and sometimes you hear a loud RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Toyota gaskets are expensive. I know that the after cat sensor for the roadster is slightly longer than the pre cat sensors so I don't want to get the wrong one! At least I don't have to remove the bumper though. About $16 each. It sounds like there is either a major vacuum leak or bad plug wires or ignition components. May 8, 2022 · The Toyota MR2 has quite a few problems, according to RepairPal. Brand. It is a 4 wire o2 sensor. Apr 21, 2013 · This can be fix a few ways. Equip cars, trucks & SUVs with 2002 Toyota MR2 Spyder Oxygen Sensor from AutoZone. It's hard to fit the sensors correctly and the factory cross-threaded a surprisingly large number of them. Turn the ignition switch ON. Add to Cart. If your oxygen sensor fails, replace it with this top-grade part developed to easily fix the problem. I believe the black/red is 12v+. Toyota Engine Bank 1 and Bank 2 A/F and O2 Identification. 8L: 2000-05: 1ZZ-FE 1993 Toyota MR2 L4-2. 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. Jan 31, 2020 · I'm going to remove my O2 sensors to inspect my precats. If your going to use an aftermarket O2 sensor cut the plug OFF THE OLD O2 sensor and connect the new O2 sensor to harness using the original plug. 1) From the top of the vehicle, plug in the new sensor, and then feed it down through being careful as to how the wire is run around all the hoses down there. Free shipping on many items RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. There would most likely be another code, one for a specific sensor before or after the cat if one sensor was bad. 24. 02: 1991 Toyota MR2 L4-2. There are 2 of them because Toyota's ECU May 1, 2003 · Installation. It's named bank 1 and bank 2 so that no matter how the engine is laid out, bank 1 is always on the same side as cylinder 1. Early cars have it in the cast iron exhaust manifold as shown (there is a blind flange on the manifold in the picture) and later cars have it in the exhaust pipe about a foot downstream of the header flange. I have a 89 MR2 NA. 1) Fuel pump delivers fuel. 2. Voila! Now here are pics of the new sensor installed: 3) Before you start up the car, it’s a good thing to reset The Oxygen Sensor (#89465-17201), a crucial electrical part in Toyota's Switch & Relay & Computer system, primarily monitors the level of oxygen in the vehicle's exhaust gases. Toyota Year: 2018. Dec 26, 2019 · With your Bluetooth scanner, monitor the O2 sensors. Airflow meter is the vane-type meter that comes on all USDM 4A-G, GZ, and 3S-GTE. Or it could be P0133, which translates to B1S1 Oxygen Sensor Circuit Slow Response (the sensor itself is failing). 35V at idle on a healthy system. This procedure worked, to a degree. The CEL refines the issue. At AFM= 1. If it remains flat, then the O2 sensor is bad. 2000 Toyota MR2 Spyder Camshaft Position Sensor; 2000 Toyota MR2 Spyder Throttle The Air Fuel Ratio Sensor (#89467-02040), a critical electrical part in the Switch & Relay & Computer system of Toyota vehicles, plays a pivotal role in maintaining the optimal fuel efficiency and reducing harmful emissions. bank 1 will be whichever side cylinder 1 of your engine is and bank 2 will be the opposite side. Location: Surrey. 0 Stage 3 bracing, black leather, TRD Quick Shifter, speedsource shifter bushings, eclipse avn2210p, scangaugeII, dev's key hole covers, dev's TBLV, LT Kick panels, Midlyph frunk and MSRP $150. If this comparison shows little or no Oxygen in the exhaust manifold, a voltage is generated. qk eb nu mw te ho xj cs pu uj