mnm27mnm

So the check engine light came on yesterday. So i connected the OBII scanner and i got P2237 (Generic o2 sensor positive, current control circuit/open bank 1 sensor 1). I erased the code and turned on the car. Then i got code P0134 (o2 circuit no activity detected bank 1, sensor 1.) So i guess the sensor went bad. So does this usually happen for a reason? or do they just go bad? Also i taught i read that Acura covered O2 admissions for 7 years/100,000 miles in California. Is that correct or did i misread something? Thanks for the help. Also Anyone know where that sensor is?

nfnsquared

Yeah, they can go bad eventually. Or could be a loose connection or rodent eating the wires. It's the top sensor (upstream) on the rear cat. About $104 shipped....

mnm27mnm

Is it this sensor? I dont want to order the wrong one thanks 36532-RCA-A02 SENSOR, FR. SECONDARY OXYGEN
http://www.acuraoemparts.com/delray/...&qty3=1&qty4=1

mnm27mnm

someone help please, I dont know where the second cat is located or which sensor it is that i need to buy. sorry but im a noob, but i know its easy to replace once i know which one it is.

nfnsquared

Did you miss my post in #2?

It's the rear primary sensor, part# 36531-RCA-A02. It's #9 in the diagram:

http://www.acurapartswarehouse.com/P...gPicture=False

mnm27mnm

yeah i did thanks, I'm just confuse where the 2nd cat is. bc the one right after the J-pipe is the third cat right without a sensor, and when i looked under the car, i didn't look that good but didnt see anything before that. i'm just going to have to look up a diagram that shows me where it is exactly.

nfnsquared

It's between the back of the engine and the firewall nearer to the passenger side. You can see the top of the converter and the sensor. Removing the strut tower bar will simplify the process. There is a DIY that triax37 posted:

https://acurazine.com/forums/3g-tl-problems-fixes-114/e-130-diy-oxygen-o2-sensor-installation-rear-upstream-f-aka-p2251-811823/

mnm27mnm

sorry for the hassle, i got it,

mnm27mnm

I called Acura and in California they cover emmisions for 7 years and 100,000 miles i think. I have to pay though $120 up front and if it is an emission issue they fix it and return my money. But i was just wondering if a cold air intake affect the oxygen sensor? the hose connect to the intake arm is on but not supper tight.

tuanrich

Hi mnm27mnm
Did you fix the issue yet! How is it turn out? Is it under warranty?

tupacboy

hi i just got the p0134 code today... was it really covered under warranty? i'm at 94k miles... is it ok to drive?

mnm27mnm

In California it is covered by warranty because of the strick smog laws. It's covered for 7 years , 100,000 miles. I didn't take in because i don't trust the dealers, I would have to give them $120 up front for them to check the car, they could have said it was something else just to keep the money and charge me extra to fix, so i decided to just fix it myself. BTW if it is an emission problem they will refund the $120

gwiffer

iTrader: (7)

So you ordered/installed the primary bank 1 O2 sensor and everything is fixed?

mbarrette

can you take a picture to illustrate where p0134 is located?