Results 1 to 13 of 13

02 sensors

This is a discussion on 02 sensors within the External Engine forums, part of the LSx Technical Help Section category; So I got set of the ebay headers. I am in the middle of buying the other parts for the ...

  1. #1
    Member ls1wallen's Avatar
    Join Date
    Jul 2009
    Location
    Saint Peters, MO
    Posts
    251

    Black
    2001 Formula

    02 sensors

    So I got set of the ebay headers. I am in the middle of buying the other parts for the install. My car has 119k miles on it. It still had the stock fuel filter on it. So I know it still has the stock 02 sensors. Should I go ahead and buy the corvette ones to replace or would I get away with just exentions

  2. #2
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Get the Bosch 13111 sensors. No extension harness required.

  3. #3
    Impounded
    Join Date
    Apr 2010
    Location
    IN
    Posts
    2,148
    Quote Originally Posted by pajeff02 View Post
    Get the Bosch 13111 sensors. No extension harness required.
    How many 02 sensors are needed?

  4. #4
    Member ls1wallen's Avatar
    Join Date
    Jul 2009
    Location
    Saint Peters, MO
    Posts
    251

    Black
    2001 Formula

    Just 2 since I won't have back ones

  5. #5
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Quote Originally Posted by BashamWS6 View Post
    How many 02 sensors are needed?
    The front O2 sensors (2) are what control closed loop fueling. The rear O2 sensors (also 2) simply let the PCM know if the catalytic converters are working properly. Most people with LT's and offroad Y pipes (or even catted Y's, like me) delete the rear O2's in their tune so as not to be hasseled by a check engine light.

  6. #6
    Impounded
    Join Date
    Apr 2010
    Location
    IN
    Posts
    2,148
    So if i get it tuned by frost after replacing my full exhaust, i dont need them replaced or extentions?

  7. #7
    Member ls1wallen's Avatar
    Join Date
    Jul 2009
    Location
    Saint Peters, MO
    Posts
    251

    Black
    2001 Formula

    You still need your front 02 sensors because they control your air to fuel ratio. You need 02 extensions for your front ones because when you put headers on it pushes your 02 sensors back to far

  8. #8
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Quote Originally Posted by ls1wallen View Post
    You still need your front 02 sensors because they control your air to fuel ratio. You need 02 extensions for your front ones because when you put headers on it pushes your 02 sensors back to far

    No extensions needed for the 13111's. They come with a real long harness that makes for a nice wire run away from the pipes.



  9. #9
    Impounded
    Join Date
    Apr 2010
    Location
    IN
    Posts
    2,148
    So its either 140 for the 13111s or 50 for the extensions. Can i use the O2s that were already in my car and just get the extensions?

  10. #10
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Quote Originally Posted by BashamWS6 View Post
    So its either 140 for the 13111s or 50 for the extensions. Can i use the O2s that were already in my car and just get the extensions?
    How many miles on them? Anything over 75,000 and you should probably replace them. The sensors degrade over time.

  11. #11
    Auto Painter RyanJM's Avatar
    Join Date
    Dec 2007
    Location
    Houston, TX
    Age
    41
    Posts
    2,002

    White
    1998 Trans Am

    Replace them trust me I have seen alot of people take the cheap way out with extensions and a few weeks later ses light for 02. BTW the bosch sensors are ^5 at pep boys
    1998 Trans Am 85k miles.
    Bolt ons, MS3 113LSA cam, Circle D Stall, Tune, Modified WS6 style hood, Full Suspension, 6000k HID's, Clear Side Markers w/ Leds, Led 3rd Brake Light and 18" AR Staggered Killer Wheels w/ BFG KDW NT's.- Weekend Toy/DD
    02 Trailblazer -Sold
    09 Ram 1500 CC - Sold
    09 Cobalt SS/TC - Sold
    13 ram 1500 LoneStar CC 4x4 - Magnaflow, K&N,and more to come-DD/Toy

  12. #12
    Member 2000dreambird's Avatar
    Join Date
    Jun 2009
    Location
    Mass
    Posts
    618

    silver/black
    00 trans am,SLP,Ws6

    All I did was plug my o2's into the rear and then swap the wires at the PCM one bolt a couple clips and then you simply swap the low volt wire from rear to front and high volt same thing. Not sure off the top of my head but I think you swap 25-26 67-68 and I done remember the other two I can look it up if you'd like. I haven't had a single prob since I did this it just makes the rear o2 plugs work for the fronts and the fronts work for the rear. But I deletet my rears so there was no need for them. I figured I would put them to use and not need to buy the extensions. I have my buddy mike to thank for the idea!!!

  13. #13
    Impounded
    Join Date
    Apr 2010
    Location
    IN
    Posts
    2,148
    How much are they at Pep boys?
    Well my firebird that i wrecked had 89,XXX miles and they were fine still.
    Mine only has basically 78,000 by the end of the week

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. O2 sensors
    By c5z28 in forum Computer & Tuning
    Replies: 27
    Last Post: 10-06-2010, 02:35 PM
  2. O2 sensors
    By Soltakr in forum External Engine
    Replies: 19
    Last Post: 05-20-2008, 10:09 PM
  3. 02 sensors
    By 02sscamaro in forum General Help
    Replies: 25
    Last Post: 04-16-2008, 05:02 AM
  4. o2 sensors
    By ls1_02 in forum General Help
    Replies: 9
    Last Post: 01-10-2008, 09:51 AM
  5. Should I buy new sensors?
    By EastTNZ28 in forum General Help
    Replies: 0
    Last Post: 06-15-2007, 10:14 PM

Bookmarks

Posting Permissions

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