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1st Gen CEL help

Discussion in 'Technical Chat' started by Gr8WhiteTaco, Mar 15, 2011.

  1. Mar 15, 2011 at 11:50 AM
    #1
    Gr8WhiteTaco

    Gr8WhiteTaco [OP] bishes love my haircut

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    Aaron
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    Alrighty guys, here's the deal. My truck keeps lighting up the CEL at low speeds. I'm talking about less than 20 mph and idling through parking lots. I'm not really sure whats triggering it, but noticed it lately. My uncle has an OBD scanner tool so if need be, I can drive it out there and get the exact codes. The truck doesn't act up at all, no smells or anything. So has anyone been in this situation, what am I looking at fixing? Any help is appreciated.
    Truck is 3.4L 4x4 TRD auto with 143,xxx miles.
     
  2. Mar 15, 2011 at 12:00 PM
    #2
    The End

    The End Support our troops!

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    If you are local to Advance auto parts they will check it for free and then you can just check the code on google.
     
  3. Mar 15, 2011 at 12:03 PM
    #3
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Get the codes, otherwise it's a crap shoot.
     
  4. Mar 15, 2011 at 12:36 PM
    #4
    Gr8WhiteTaco

    Gr8WhiteTaco [OP] bishes love my haircut

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    Took it out to my uncle's car lot to see what it's saying and this is what I got
     
  5. Mar 15, 2011 at 12:43 PM
    #5
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Bad AFR sensor. It would be a good idea to change both that one and the rear sensor. You can get them cheap and quick at www.rockauto.com They have a member discount in their vendor section. Get the Denso as they're OEM. Toyota's don't like Bosch or universal sensors.
     
  6. Mar 15, 2011 at 12:46 PM
    #6
    Gr8WhiteTaco

    Gr8WhiteTaco [OP] bishes love my haircut

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    Cool deal. So this is just usual wear parts going bad with age right?
     
  7. Mar 15, 2011 at 12:49 PM
    #7
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Correct. That's why I advise you do the rear one also. You don't have to, just my .02
     
  8. Mar 15, 2011 at 12:50 PM
    #8
    Gr8WhiteTaco

    Gr8WhiteTaco [OP] bishes love my haircut

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    Thanks Ben!!! :thumbsup: :D
     
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