Rear Denso O2 Sensor
+ Reply to Thread
Results 1 to 2 of 2

This is a discussion on Rear Denso O2 Sensor within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hi there, I am looking for a replacement for my rear O2 sensor in my 2003 WRX 5-Speed. I can ...

  1. #1
    Registered User
    Join Date
    Jul 2011

    Rear Denso O2 Sensor

    Hi there,

    I am looking for a replacement for my rear O2 sensor in my 2003 WRX 5-Speed. I can find a lot of info on the front, but not too much about the rear. I believe I have narrowed it down to these:

    Front Sensor

    Rear Sensor

    Are these the wrong parts? My rex is throwing a P0420. And I'm hoping this is a good place to start to clear this code. Any help is appreciated. Thanks.

  2. Remove Advertisements

  3. #2
            MainFrame's Avatar
    Join Date
    Sep 2002
    Austin, TX
    I Support ClubWRX I Support ClubWRX
    That sensor isn't even needed. Personally, I'd just find someone with a Tactrix cable and defeat the code through the ECU.

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts