Denso 234-9021 Oxygen Sensor . will this fit to 2001 toyota sienna le. my mechanic told me I need for front and back. is this air fuel ratio sensor?
513108
Yes, it will fit. I checked by clicking on the button that asks if it will fit your vehicle. However, I am to the understanding that this one works for the front O2 sensor (bank 2, sensor 1) and it may or may not work on the back. I think that Toyotas have a total of 4 Oxygen Sensors (2 front & 2 rear). If you go to Advanced Auto they will plug your car up to the device for free that will give the code for what isn't working (causing your panel to display lights like Trac Off or VSC, check engine etc)- once you have the print out with the codes you may use them to buy them according to the *part #*. Good luck Yes, it will fit. I checked by clicking on the button that asks if it will fit your vehicle. However, I am to the understanding that this one works for the front O2 sensor (bank 2, sensor 1) and it may or may not work on the back. I think that Toyotas have a total of 4 Oxygen Sensors (2 front & 2 rear). If you go to Advanced Auto they will plug your car up to the device for free that will give the code for what isn't working (causing your panel to display lights like Trac Off or VSC, check engine etc)- once you have the print out with the codes you may use them to buy them according to the... » Read More Yes, it will fit. I checked by clicking on the button that asks if it will fit your vehicle. However, I am to the understanding that this one works for the front O2 sensor (bank 2, sensor 1) and it may or may not work on the back. I think that Toyotas have a total of 4 Oxygen Sensors (2 front & 2 rear). If you go to Advanced Auto they will plug your car up to the device for free that will give the code for what isn't working (causing your panel to display lights like Trac Off or VSC, check engine etc)- once you have the print out with the codes you may use them to buy them according to the *part #*. Good luck « Show Less
513109
The Denso 234-9021 is an Air/Fuel Ratio Sensor. Used two of these recently to replace both upstream sensors (Bank 2, Sensor 1 and Bank 1, Sensor 1) in my 2001 Toyota Avalon. The trouble codes that were set were P1155 and P1135. Use your OBD II tester to determine which sensor(s) have gone bad. The downstream oxygen sensors do not require the Denso 234-9021 oxygen sensor. By the way, the Denso part was an exact fit replacement and should be money well spent!
513110
my mechanic friend installed this over a year ago in my 2001 sienna le and it is fine. no problems! I really don't understand "my mechanic told me I need for front and back." I think you might need a new mechanic.
513111
Yes! This is the same one for front and back. It fixed my problem and I passed Smog inspection.
1079330
Denso mfgs these as oem for Toyota and others, as part of you emission system. I assume it is for all states that req. testing
1142867
The page for this sensor has a compatibility function. Have you tried entering the information into the page and see if it is comparable? Failing that, have you called a car part store and asked what the part number is?
796251
Amazon.com: Denso 234-9005 Oxygen Sensor: Automotivehttp://www.amazon.com › ... › Air & Fuel Ratio... 234-9005. OEM Part Number, 36531PPAA01, 36531PNDA01 ... This sensor worked perfectly in my 2004 Honda Civic Hybrid. .... This IS the correct part for a 2004 Civic LX with a D17A1 engine.
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It should be there are 2 different oxygen sensors so make sure you are ordering the correct one, I have a 2001 Tacoma 3.4 but its an automatic doubt the exhaust is any different but what I did was went to Advance Auto.com typed it what I was looking for copied the part number then went to amazon and looked it up. They are perfect fit definitely recommend you using them
264980
There should be two o2 sensors. One before the cat and one after. For my car (03 Focus) the 15717 went before the catalytic and the 15719 went after.
603714
Yes. If your confused about location, this is the one that screws into the exhaust manifold closest to the firewall of the car. The one that screws into the exhaust manifold closest to the radiator (the one that's easy to get to,) is the same part number. On the Lexus/Toyota system this is actually an air/fuel ratio sensor and incorporates it's own heating unit so that it reacts quicker as opposed to reacting when engine temperature reaches operating temperature.
525465
Little search and I found that 974-020 is proper sensor for your car. To find out more search http://www.dormanproducts.com
444476
As stated earlier Sensor 1 is air/fuel this is not the air/fuel sensor. What is the check engine code number?
1812056
You have to provide more details about your vehicle. For my 1998 Toyota RAV4 CA Emissions, this was the sensor in the exhaust manifold. The one after the catalytic converter underneath the vehicle is different from this one.O2 and Air/Fuel Sensors are different too.http://www.autoshop101.com/forms/h37.pdf
850990
Before you buy it, go to the denso website at densoautoparts com. You can check your fitment there to be sure the amazon information is correct. For your car, the correct upstream (before your catalytic converter) sensor is 234-9004. The correct downstream (after your catalytic converter) is 234-4122. The item you are looking at here, the 234-9005 is not the right sensor for your car.
1812060
Yes it is different. Front is wide band and is known as air fuel sensor. California configured auto is different fron national cars. I do believe the rear is sensor is for all states. Check the connection fitting closely. If connector is designed to only engage if it is correct. I was dealing with 98 rav4 national car.
2050129
I went onto oxygensensors.com and got the part number from there. I went with the Denso brand and it was the cheapest in town with an exact fit. I hope this helps you!!
1980500
Ask the company that sells it! But if you go to the Toyota dealer they give only 90 days parts and 12 months on laber and cost around $300.its a good quality sensor.I replaced 3 on my car 1- on 60K second on 90k and 3 on 120k my car is now 135k.All of them I got from Amazon good price!
823122
Wayne, On my specific application the oxygen sensor where all the same the two upstream sensors (before the Cat)as well as the two down stream sensors (after the Cat). You should stick with the OEM recommendation and buy the correct oxygen sensor for your application and its specific location. Your local part house should be able to help you with making the correct choices.
1718263
No, this is the 2001-2005 Audi A4 1.8T (before catalyst). I recommend you to access here *www.europaparts.com*, they will give the correct oxygen sensor that you need.
1179751
Denso 234-9002 is an exact replacement for the OEM sensor on my 2002 Toyota 4-Runner. I cannot explain why Amazon now says it does not fit. Amazon said it fit when I purchased it Dec 21, 2013.