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Oxygen Sensor Cleaning?

Discussion in '1st Gen. Tacomas (1995-2004)' started by derekp, Jan 19, 2010.

  1. Jan 19, 2010 at 7:52 AM
    #1
    derekp

    derekp [OP] giddy up!

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    Can you clean the O2 sensor on the 1G Tacoma or do they have to be replaced? They run around $80 for the downstream sensor and more the upstream sensor. Looking at around $200 for both I was hoping to save some money by cleaning them if possible. I have about 122k miles and have been doing a few weekend maintenance tasks on the truck. Tranny/axle fluid change is in coming soon. Thanks for the input.
     
  2. Jan 19, 2010 at 7:53 AM
    #2
    ColtsTRD

    ColtsTRD .....

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    you can clean it :)
     
  3. Jan 19, 2010 at 7:53 AM
    #3
    rab89

    rab89 Well-Known Member

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    COOL! how? spit?
     
  4. Jan 19, 2010 at 7:54 AM
    #4
    ColtsTRD

    ColtsTRD .....

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    I cleaned mine with carb cleaner
     
  5. Jan 19, 2010 at 7:56 AM
    #5
    rab89

    rab89 Well-Known Member

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    neat, I'll do mine today. thanks
     
  6. Jan 19, 2010 at 7:59 AM
    #6
    ColtsTRD

    ColtsTRD .....

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  7. Jan 19, 2010 at 8:10 AM
    #7
    derekp

    derekp [OP] giddy up!

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    I'll give this a try. I haven't had a CEL yet but my mileage hasn't been as good as my 2000 V6 TRD. Maybe this will bump it back up a bit. Did you just spray it down real well or brush it with anything also?
     
  8. Jan 19, 2010 at 8:18 AM
    #8
    ColtsTRD

    ColtsTRD .....

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    Nope just hosed it down :)

    All the dirt and shit will just run off...i'm sure you can gently wipe it though :notsure:
     
  9. Jan 19, 2010 at 10:36 AM
    #9
    97Blk_one

    97Blk_one Well-Known Member

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    How do you take that thang off? which one ? Bank 1 Sensor 1 or Bank 1 Sensor 2? please help !
     
  10. Jan 19, 2010 at 3:50 PM
    #10
    derekp

    derekp [OP] giddy up!

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    There are two; one before the cat, one after. Each should be held on by two nuts. Be careful though. I busted the bolt on one on my old 2000 Tacoma and had to use a hose clamp to keep the sensor back in place.
     
  11. Jun 20, 2012 at 9:17 PM
    #11
    pippen

    pippen that was'nt a vitamin!!

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    Well I know this is a old thread, but Im removing my o2 sensor now to try to clean it after a guy at auto store said to try 108 octane and premium to see if that helps, he swore it did on his minivan :) Did not work really so I'm letting the sensor end soak in some MEK. Will let you guys and gals know how it worked tomorrow. I see alot of people on the internet talk about brushing them and such, from my understanding the actual sensor is protected by the outer shield. As why I chose MEK, well my dad thought it would be a good start, anything that dissolves carbon deposits seems like a good idea too.
     
  12. Jun 20, 2012 at 11:45 PM
    #12
    Janster

    Janster Old & Forgetful

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    The sensor...is actually a 'heater' that heats up.... cleaning may work for a period of time, the sensor can and will fail if the heater isn't working properly.
    http://en.wikipedia.org/wiki/Oxygen_sensor

    It actually mentions this inside my old 96 tacoma owners manual.
     
  13. Jun 21, 2012 at 4:57 PM
    #13
    pippen

    pippen that was'nt a vitamin!!

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    Well the soak in MEK did not work....the truck ran fairly rough at low rpm, compared to perfect running before soak :( I'll just buy a new one found a extremely cheap online vendor :D
     
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