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O2 Sensor Cleaning?

Discussion in 'General Chevy & GM Tech Questions' started by vncj96, Sep 21, 2011.

  1. vncj96

    vncj96 New Member 1000 Posts

    I have heard that you can clean O2 sensors, has anyone tried it with success? Did you use gas or another method?
  2. silveradotrailblazer

    silveradotrailblazer New Member 1000 Posts

    I heard guys trying everything from gas,MAF cleaner, throttlebody cleaner none having any good results. If you have a bad O2 can't hurt to try.
  3. vncj96

    vncj96 New Member 1000 Posts

    well my codes tell me its all 4 so i will try anything before i shell out a couple hundred bucks1
  4. silveradotrailblazer

    silveradotrailblazer New Member 1000 Posts

    Did it throw ALL the O2's codes all at once? Wonder if you got something in your fuel?
  5. vncj96

    vncj96 New Member 1000 Posts

    they were up when i bought it 18 months ago i still get 18mpg on the hwy but am just startring to get a little chug after a cold start and a tiny hesitation on accel until it warms up
  6. silveradotrailblazer

    silveradotrailblazer New Member 1000 Posts

    I would just change or try to clean the front o2's, there the ones that control the engine. The rears are for emissions.

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