1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Fouled Wideband sensor?

Discussion in 'ECU's, Electronics, and Tuning' started by awptickes, Apr 30, 2008.

  1. awptickes

    awptickes unimpressed by you VIP

    Messages:
    9,272
    Likes Received:
    497
    Joined:
    Aug 29, 2007
    Location:
    MD
    Ok, let's say someone who didn't know that my car hadn't been tuned yet drove it. For like 80 miles. It must have run extremely rich, through the whole band, like 12:1 or so.

    So now I'm tuning it, and the wideband doesn't seem to respond at all. At idle it reads accurately, but anywhere else, I get around 12.45:1. I pulled it, and it was covered in carbon deposits, thick, fluffy, velvety carbon. I wiped it off, being careful not to get it inside, but I'm still not getting a very good response at anything above about 1200 rpm. Could it have been fouled inside, and thus screwed up pretty bad?

    Is it possible to fix it, or should I order one now, and wait another two weeks without a decent car to drive?
     
  2. Briansol

    Briansol Admins Admin VIP

    Messages:
    21,449
    Likes Received:
    2,110
    Joined:
    Nov 18, 2007
    Location:
    CT
    12:1 isn't really rich... that's spot on for a turbo car.

    You can use a propane torch to clean the tip of the sensor. basically heat it up to burn off the carbon. don't cook it, just constantly move it around
     
  3. t3t4delsol

    t3t4delsol New Member

    Messages:
    652
    Likes Received:
    12
    Joined:
    Mar 18, 2008
    Location:
    York, Pa
    soak the tip in seafoam or carb cleaner
     
  4. awptickes

    awptickes unimpressed by you VIP

    Messages:
    9,272
    Likes Received:
    497
    Joined:
    Aug 29, 2007
    Location:
    MD
    Yeah, but my car isn't turbo. Thanks for the info, it's just like cleaning up plugs then I guess.
     
  5. awptickes

    awptickes unimpressed by you VIP

    Messages:
    9,272
    Likes Received:
    497
    Joined:
    Aug 29, 2007
    Location:
    MD
    Hrm. I wonder where I get seafoam here.
     
  6. t3t4delsol

    t3t4delsol New Member

    Messages:
    652
    Likes Received:
    12
    Joined:
    Mar 18, 2008
    Location:
    York, Pa
    if you cant find that you can use carb cleaner or brake cleaner
     
  7. awptickes

    awptickes unimpressed by you VIP

    Messages:
    9,272
    Likes Received:
    497
    Joined:
    Aug 29, 2007
    Location:
    MD
    Would engine degreaser work? I know it's a little bit thicker, but I've never really used carb cleaner, I think I was born after FI took hold.
     
  8. t3t4delsol

    t3t4delsol New Member

    Messages:
    652
    Likes Received:
    12
    Joined:
    Mar 18, 2008
    Location:
    York, Pa
    its possible but im not sure how it would break up carbon deposits
     
Verification:
Draft saved Draft deleted

Share This Page