98 Camry -- Oxygen Sensor Location? - Toyota Nation Forum : Toyota Car and Truck Forums

adhum · 01-06-2009, 05:00 PM

I have seen a LOT of posts on here with GREAT pictures and been helped before.

I'm having the infamous p0171 code and am going to replace my 02 sensor.

I'm not overly familiar with cars and don't exactly know what a catalytic converter looks like, nor do i really care

I bought a replacement o2 sensor that was specified to be BEFORE the CatCon and removed what I thought was the same one. Lo-and-behold, the notches on the plug do not match.

Which o2 sensor is the one located right under the hood basically IN YOUR FACE when you look at the engine?

Anyone have pictures pointing to it? The part I bought was Bosch 13354 -- meant to be BEFORE the Converter. Any help would be GREAT! Thanks again.

***toyomoho*** · 01-06-2009, 05:57 PM

V6 or 4 cylinder. If 4 cylinder this would be Bank 1, Sensor 1.

The info on this sensor states EXCEPT CALIFORNIA. From the code you have a California emissions car. Could this be the problem>

Find a sensor that looks like the one you want to replace on link below:

http://www.rockauto.com/catalog/rafr...4&a=FR23-13354

The DENSO Part # 2349024 might be the one (or equivalent)

adhum · 01-06-2009, 10:09 PM

Its a 4 cylinder.

I know that the code refers to bank 1. Where is bank 1? From posts i've read, its BEFORE the converter...

Answer this question: WHERE IS IT?! The one located attached basically to the engine? (to get to it, i used a 12mm socket wrench to remove two bolts to take off the cover, and then I believe it was a 17mm wrench to remove the sensor). Middle of the engine compartment staring you right in the face, front of the car....right?

Just wondering why that product wasn't the right match even though that's what it is spec'd to be.

Thanks.

***toyomoho*** · 01-06-2009, 10:36 PM

Toyota specifies Bank 1 and Bank 2 to refer to which cylinder head. If the 4 cylinder this is Bank 1, For a V6 the rear bank is Bank 2.

The sensor location is identified as Sensor 1, 2, 3 in order starting from the cylinder head. Thus Bank 1 Sensor 1 would be the 1st sensor on the exhaust system coming from the head on this engine.

Is your issue that the electrical plug does not match the one on the car or the sensor does not screw into the pipe.

In my last post it was pointed out that this sensor was NOT for California emissions cars which based on your trouble code number appears to be.

adhum · 01-07-2009, 12:14 AM

Although the head of the sensor itself seems to be different than the stock, it appears that the threads on it are the same length and would match up fine.

It is the electrical plug end that is mismatched. The notches that are supposed to line up with the other end, do not. They are virtually reversed.

So it appears that I obtained a replacement intended for the non-California based emissions vehicle.

Thanks! I know what to ask for when I return this...
Looks like prices are cheaper on that website you gave me...and also cheaper on Amazon. com (with free shipping as well).
So I'll just get the model number -- and then pick one up that way -- i can wait a few extra days

***new echo owner*** · 01-07-2009, 12:30 AM

If it is a Cal spec vehicle, you have an Air Fuel Ratio sensor, or A/F sensor. Bank 1 is always the bank where #1 cylinder is located at.

Did you do any testing before decided upon replacing the sensor for the code?

N.E.O.

adhum · 01-07-2009, 03:01 AM

Well problem really lies in not knowing which cylinder is 1, 2, 3, or 4...

From what I can gather though, Sensor 1 is Under the hood and Sensor 2 is only accessible in the interior of the car.

So trying to find them based on the cylinders is a lil outta my league. And no, I didn't do any testing for it other than other "remedies" to the problem to no avail.

If you'd like to come to my house and test it for me, feel free...otherwise, I'm gonna replace it, if it rids the error/problem driving -- then great! If not, not an overly expensive part put into my car to "extend" its life. A new part will always work better than an old one....

***new echo owner*** · 01-07-2009, 07:13 AM

Here is something that may help you then: http://www.camrystuff.com/manuals/Gen4/SFI.pdf. Try page 58 if you have Cal spec vehicle or page 60 if you have a Federal vehicle.

If it is an expense paid trip, I won't mind coming to your house and test things out for you, can use a little time off;

otherwise, let me thing about it and get back to you!

N.E.O.

adhum · 01-07-2009, 11:08 AM

Aaah. That HELPS! I like pictures.

Just since I don't know exactly what everything is.

So now I know its not exactly an Oxygen Sensor but rather an A/F sensor that I need to ask for....It is CalSpec -- I rechecked under the hood and its California Specified.

Looks like my next step is to find a friend with an Ohmmeter. My friend Mike in Jersey has one :/ but that's too far. LOL! Never had a need to buy one myself until now.

Thanks again for all the help! That manual you linked is priceless! Wish I could give ratings for your comments...

***new echo owner*** · 01-08-2009, 12:34 AM

The magic of the Internet!

And you are

!

Keep us posted on how it turn out!

N.E.O.

colbert · 04-20-2009, 02:54 AM

When an oxygen sensor has prematurely failed, it can greatly diminish a vehicle's ability to maintain top fuel efficiency. Your vehicle may become sluggish, or even seem as though it were missing or misfiring. Some automotive technicians will diagnose a vehicle's problems simply because the vehicle did not give the code needed to supply the right information.

adhum · 04-20-2009, 03:38 AM

Well I should have posted a while ago.

Everything turned out GREAT!

Got a great price on a replacement part from Amazon (shipping was slow because the item wasn't instock at the time...but I was willing to wait the extra week - wasn't planning on driving the car much)

Took no more than five minutes for the install and started up with no problems. Code hasn't returned in about two months. No more "misfiring" or sluggishness...no more random idle spiking...car runs great.

So great, that I decided to finally install a remote starter -- that install went great -- a few hiccups, but ultimately great. And put some tints on the car. I should throw some pictures up soon....but I don't have a camera.

Cheers to all that helped along the way!!

Newtops · 07-11-2009, 10:28 PM

Just want to confirm your car is CAMRY 4 cylinder with California Spec.

Which replacement Air/Fuel sensor you got from Amazon that was successful?

Thanks

Quote:

Originally Posted by adhum

Well I should have posted a while ago.

Everything turned out GREAT!

Got a great price on a replacement part from Amazon (shipping was slow because the item wasn't instock at the time...but I was willing to wait the extra week - wasn't planning on driving the car much)

Took no more than five minutes for the install and started up with no problems. Code hasn't returned in about two months. No more "misfiring" or sluggishness...no more random idle spiking...car runs great.

So great, that I decided to finally install a remote starter -- that install went great -- a few hiccups, but ultimately great. And put some tints on the car. I should throw some pictures up soon....but I don't have a camera.

Cheers to all that helped along the way!!