CenturionTL

This is for an '04 TL.

Where is the O2 sensor located for this?

Also, what is the Part # for this?

Is there a DIY on this site to replace it? I could not find one.

Ccvn0

Where are 2 O2sensor there are upper and lower on the exhaust system. But you need the scan tool to find which one is bad.

http://www.acuraoemparts.com/delray/jsp/home.jsp

CenturionTL

Yes its Bank 2. WHere is that located and what is the part #?

Slpr04UA6

This link has some info...


https://acurazine.com/forums/3g-tl-problems-fixes-114/p0174-code-need-new-o2-sensor-how-install-836473/

Another....

https://acurazine.com/forums/3g-tl-problems-fixes-114/im-getting-p0171-p0174-code-846356/

CenturionTL

Thanks, but I could not find the Part #.

Does anybody have any info on this?

Slpr04UA6

Here is a link to a diagram. The front cat converter has 2 sensors. You will need either 10 or 11, and I am not sure which you need. You can order through a vendor here on Azine ( could be cheaper?).

http://www.acuraoemparts.com/delray/...All&vinsrch=no

Vlad_Type_S

iTrader: (3)

How do you know the O2 sensor has failed?

CenturionTL

I don't quite know for sure. But my CEL lights keep on turning off and on with this code. On for 1 day; Off for months.

I have new fuel injectors, I did a valve adjustment. New air filter. Aside from a leak test which I do not know how to do, I am looking at the 02 sensor. I had a PO171 code before. It went away permanently after the valve adjustment. So I'm taking a stab at the O2 sensor. Not sure what else to look at.

Vlad_Type_S

iTrader: (3)

Haha, yeah it's starting to look like the sensor. The only other thing to check would be the fuel pressure.

CenturionTL

Fuel pressure is fine.

Any posts on this board for location and replacement of O2 Sensor?