I got a p0134 rear air fuel ratio sensor bank 1 code on scanner. What o2 sensor do I buy. I'm ordering from rockauto. Can someone help? Guy quoted me 53 dollars. Seems kinda low. I wanna make sure I get the right one. I live in Hawaii. Parts are hard to get. Can someone tell me the exact one or post a link. Thx and aloha.

 

Actually what I ment is which of the for is bank 1. I know where its located, but don't know which one to buy. There's like 4 different ones. Down stream up stream before cat after cat etc. Anyone?

 

I think yours is the same as mine. If that's the case, then there are two upstream sensors (aka "Air fuel ratio sensor") and two downstream sensors (aka O2 sensor). One pair for each of the warm-up catalytic converters to either sides of the engine block. The cat converter underneath the car doesn't have sensors. The upstream sensors that are direct-fit usually cost $100 each, much more than the downstream ones it seems.

Check out advance auto parts, they have very nice coupons ($50 off $150). Make sure you get the one that fits your vehicle.

 

Ok cool. Yup, the scan did say air fuel ratio. So its upstream? Ty.

 

P0134 is for bank 1, sensor 1.

Looking from the front of the car Bank 1 is the REAR (firewall) and Bank 2 is the FRONT (radiator side).

This shows the different sensors:
https://www.hondaaccordforum.com/for...r-location-jpg

 

The two air/fuel ratio sensors are the same part number.

 

Thx redbull would u happen to know the part number for them? I want the direct fit with the wires already connected. Also if u know of a website with the part I'd like to order them ASAP. Ty.

 

For part numbers, online sites such as advance auto parts or Amazon have their own matching system, so you punch in your car model and year, and they will let you know if something fits. But as a safest bet, I would just call the dealership. You don't have to buy them, unless the dealership acts up, in which case call another. Good luck!

 

The Honda part number is 36531-RCA-A02. You can just google with the number to see various vendors. Denso is usually OEM for the sensor.