Check engine light

I've looked I have a standard p1135 code, I know it's my 02 sensor but which one? I don't have heaps of money to dump so I don't want to have to buy multiple sensors trying to get it
Not sure if the pic helps but the sensor on the bottom stays at the same voltage were as the top fluctuates.

 

its the first one in front of the cat

 

It will take 10 or so starts before check engine light goes off also. I just had to replace mine a couple weeks ago.

 

Its the first one in front of the first cat. Just need basic hand tools and a jack. Slide under, unbolt, and put the new one in. Maje sure the old gasket comes off before putting the new one on

 

cool guys. Thanks, ive been seing some for like 55$ on Amazon should i trust them or just get a denso for 140

 

i know im burning way too rich as im only getting like 180 miles per tank

 

What are your guys looking at in terms of mpg

 

Check rock auto for that. Its where i got mine. I get around 240 per tank. However, i think my odometer is off a little

 

way better then what im getting... and ill check rock auto. i dot have the cash to fix it but damn im losing so much in terms of gas'

 

Believe me, i know exactly how you feel. Not fun at all lol

 

haha yea man no a good time. and i found them on rock ato for like 60 for a denso that should be good rght

 

Yep thats it. Make sure to unhook the neg cable of your battery when you replace it

 

will do haha rock auto is legit though?

 

Yessir. I've ordered a couple of things from them with no issues.

 

cool. found a wholesale for 17$ kind tempted

 

Idk about that man

 

just gonna stick with the denso, how do you unplug thst stupid little clip? I couldnt get mine to come out

 

Just gotta keep at it honestly. Mine was a complete bitch. Took me about a half an hour to get the clip out

 

do you push the little tab down or up ive heard both

 

Honestly dont remember lol. I replaced mine months ago. I want to say down. But I don't remember