O2 Sensor :(

**killakelli** · 08-20-2008 09:34 AM

Hey! So, I just bought my WRX two months ago and.. yay the O2 sensor needs to be replaced. Sooo, if anyone has time to give me some good instructions on how to replace the o2 sensor on a 2006 I would be soooooo happy!

**DUB** · 08-20-2008 09:37 AM

Front or rear?

**killakelli** · 08-20-2008 09:47 AM

Originally Posted by DUB

Front or rear?

Its the one in the downpipe.. so I think it's the front one.

**DUB** · 08-20-2008 09:55 AM

That would be the rear o2 sensor, the front one is located in the passenger side exhaust manifold.

The rear one is not tough to get to. Just crawl under the car, you will see it sticking out of the mid pipe near the cat. You can either unplug it and remove it from the pipe, or if you wish, you can unbolt the who mid pipe and replace the sensor out from underneath the car.

**killakelli** · 08-20-2008 10:04 AM

Originally Posted by DUB

That would be the rear o2 sensor, the front one is located in the passenger side exhaust manifold.

The rear one is not tough to get to. Just crawl under the car, you will see it sticking out of the mid pipe near the cat. You can either unplug it and remove it from the pipe, or if you wish, you can unbolt the who mid pipe and replace the sensor out from underneath the car.

Awesome.. that sounds easier then paying the 500 bucks Subaru wanted me to pay to have them replace it. I actually cant remember if its the front or rear. Its on the paper which is at home.. what if it is the front one?? its just harder to get to but its the same process right??

**wrxtreme06** · 08-20-2008 10:08 AM

i responded with a tutorial in the other thread you made. dont know if it will help or not.

**SD_GR** · 08-20-2008 10:08 AM

Maybe you can save some time and effort first -- what happened that led Subaru to believe that either O2 sensor needs replacement? Was there a CEL? If so, what was the code (as in, "POxxx" and we need to know the xxx values)?

**killakelli** · 08-20-2008 10:17 AM

Originally Posted by SD_GR

Maybe you can save some time and effort first -- what happened that led Subaru to believe that either O2 sensor needs replacement? Was there a CEL? If so, what was the code (as in, "POxxx" and we need to know the xxx values)?

The engine light went on, so i took it to Subaru and they said it needs to be replaced. Where would I get this number?

**DUB** · 08-20-2008 10:18 AM

Originally Posted by killakelli

what if it is the front one?? its just harder to get to but its the same process right??

Yes, same process, just a little more work to get too.

Originally Posted by wrxtreme06

i responded with a tutorial in the other thread you made. dont know if it will help or not.

Here it is again:

Oxygen Sensor removal (02 Sensor) - ScoobyMods

You should go ahead and just delete your other thread now (not sure why you posted it twice in the first place?). Thread tools > delete thread under moderation tools.

Originally Posted by SD_GR

Maybe you can save some time and effort first -- what happened that led Subaru to believe that either O2 sensor needs replacement? Was there a CEL? If so, what was the code (as in, "POxxx" and we need to know the xxx values)?

Good thinking.

**SD_GR** · 08-20-2008 10:18 AM

On the mainland, autoparts stores read the codes for free. Do you have an Autozone around?

**killakelli** · 08-20-2008 10:24 AM

Originally Posted by SD_GR

On the mainland, autoparts stores read the codes for free. Do you have an Autozone around?

Would Subaru have it since I took it there??

**DUB** · 08-20-2008 10:39 AM

Originally Posted by killakelli

Would Subaru have it since I took it there??

Maybe. If they created a service ticket for your car, you may be able to call and they can look it up. Otherwise, the tech probably just read the code and cleared it.

Try and find someplace near you where you can get the code read for free. There aren't any autozone's on the island, but there are a couple Checker Auto Parts near you. Call and see if they will do it. Also, some of the nicer independent mechanics will do it for you.

If I were you, I would drive around until the CEL comes back on, have it read and report back here with the code. We may be able to help you with some trouble shooting steps.