o2 SENSOR HELP

PrimeSTI · 07-22-2008, 10:43 AM

I drive an 04 STI, i need to replace an o2 sensor. Im not sure which one went bad, but if i ordered a replacement from Subyparts.com does anyone have a procedure to fixing the problem... thnx fellas

PrimeSTI · 07-22-2008, 11:21 AM

no responses...? HELP

silhouette0922 · 07-22-2008, 07:53 PM

you have a bad o2 sensor on an 04 STI? that's weird..
so... u don't know which one doesn't work... that means, you don't really know which one you ordered... how can anyone help you??

I guess what you have to do right now is to find out which one doesn't work and which one you bought.. and from there, it's just locating the o2, unplug the old o2 and thread it back in...
are u sure it's the o2... usually o2sensor are designed to last 160000km

ryanwrxduksa · 07-23-2008, 05:47 AM

Well if you don't know which one is bad how did you buy a replacement? Theres 2 different ones on our cars and can't be interchanged. Well, good luck..

kts262 · 07-23-2008, 05:54 AM

How do you know one is bad? What is the CEL code that pops up?

P0420 is the rear O2.

P1153/P1153/P0139(?) and a few others are the front O2.

There are probably a few other CEL codes for both sensors.

You need to figure out which sensor is bad. Both are fairly easy to replace, unplug the connection and use an O2 sensor socket to remove. The front O2 in the exhaust manifold is a bit more of a PITA to reach but it's still not that bad.

STI Sibb · 07-23-2008, 05:54 AM

Quote:

Originally Posted by PrimeSTI

I drive an 04 STI, i need to replace an o2 sensor. Im not sure which one went bad, but if i ordered a replacement from Subyparts.com does anyone have a procedure to fixing the problem... thnx fellas

What problem are you having and how did you determine that you had a bad O2 sensor?

PrimeSTI · 07-23-2008, 11:19 AM

sorry to confuse ya fellas, i did not buy a replacement...yet, im just trying to get an idea how to solve the problem at my easiest convenience. I dont have a reliable shop to go to in my area, so im lookin into fixing it myself, however yes i dont know which o2 sensor is bad, nor do i know the locations. thanx for the responses, keep them commin....

kts262 · 07-23-2008, 07:10 PM

HOW DO YOU KNOW ONE IS BAD?

Are you getting a CEL? If so post the code you are getting. Search on here/NASIOC/google for more info.

Advance Auto/AutoZone/etc all have CEL code readers that you can borrow to get the code. Take a minute and they can help you if you need it.

silhouette0922 · 07-23-2008, 10:14 PM

yup.. get a code read.. then search it up.. and you'll know

07-22-2008, 10:43 AM	#1
PrimeSTI Amateur STI Driver Car: 04 STI Fav Mod: Coming Soon Posts: 15 Join Date: Jul 2008 Trader Rating: (0)	o2 SENSOR HELP I drive an 04 STI, i need to replace an o2 sensor. Im not sure which one went bad, but if i ordered a replacement from Subyparts.com does anyone have a procedure to fixing the problem... thnx fellas This ad is not endorsed by this member. Please register or login to hide this ad.

07-22-2008, 11:21 AM	#2
PrimeSTI Amateur STI Driver Car: 04 STI Fav Mod: Coming Soon Posts: 15 Join Date: Jul 2008 Trader Rating: (0)	Re: o2 SENSOR HELP no responses...? HELP

07-22-2008, 07:53 PM	#3
silhouette0922 Lurker Fav Mod: Coming Soon Posts: 2 Join Date: Jul 2008 Trader Rating: (0)	Re: o2 SENSOR HELP you have a bad o2 sensor on an 04 STI? that's weird.. so... u don't know which one doesn't work... that means, you don't really know which one you ordered... how can anyone help you?? I guess what you have to do right now is to find out which one doesn't work and which one you bought.. and from there, it's just locating the o2, unplug the old o2 and thread it back in... are u sure it's the o2... usually o2sensor are designed to last 160000km

07-23-2008, 05:47 AM	#4
ryanwrxduksa Junior STI Driver Car: Pearl White 07 STi Posts: 135 Join Date: Aug 2007 Trader Rating: (0)	Re: o2 SENSOR HELP Well if you don't know which one is bad how did you buy a replacement? Theres 2 different ones on our cars and can't be interchanged. Well, good luck..

07-23-2008, 05:54 AM	#5
kts262 HowTo Contributor Car: 2008 DGM (BBS+Navi) Fav Mod: stock FTL? Location: College Park, MD Posts: 2,117 Join Date: Jan 2005 Trader Rating: (9)	Re: o2 SENSOR HELP How do you know one is bad? What is the CEL code that pops up? P0420 is the rear O2. P1153/P1153/P0139(?) and a few others are the front O2. There are probably a few other CEL codes for both sensors. You need to figure out which sensor is bad. Both are fairly easy to replace, unplug the connection and use an O2 sensor socket to remove. The front O2 in the exhaust manifold is a bit more of a PITA to reach but it's still not that bad.

07-23-2008, 11:19 AM	#7
PrimeSTI Amateur STI Driver Car: 04 STI Fav Mod: Coming Soon Posts: 15 Join Date: Jul 2008 Trader Rating: (0)	Re: o2 SENSOR HELP sorry to confuse ya fellas, i did not buy a replacement...yet, im just trying to get an idea how to solve the problem at my easiest convenience. I dont have a reliable shop to go to in my area, so im lookin into fixing it myself, however yes i dont know which o2 sensor is bad, nor do i know the locations. thanx for the responses, keep them commin....

07-23-2008, 07:10 PM	#8
kts262 HowTo Contributor Car: 2008 DGM (BBS+Navi) Fav Mod: stock FTL? Location: College Park, MD Posts: 2,117 Join Date: Jan 2005 Trader Rating: (9)	Re: o2 SENSOR HELP HOW DO YOU KNOW ONE IS BAD? Are you getting a CEL? If so post the code you are getting. Search on here/NASIOC/google for more info. Advance Auto/AutoZone/etc all have CEL code readers that you can borrow to get the code. Take a minute and they can help you if you need it.

07-23-2008, 10:14 PM	#9
silhouette0922 Lurker Fav Mod: Coming Soon Posts: 2 Join Date: Jul 2008 Trader Rating: (0)	Re: o2 SENSOR HELP yup.. get a code read.. then search it up.. and you'll know This ad is not endorsed by this member. Please register or login to hide this ad.