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  1. G

    po430 99 tahoe ls

    Can you provide any helpful pics of where the O2 sensors are located? I would not know exactly what I am looking for when it comes to these things. Can you provide further explanation on exactly what I need to do?
  2. G

    po430 99 tahoe ls

    Are there any "how-to's" on replacing the downstream Oxygen sensors? My check engine light is on and I had a code pulled that indicated the Bank 2, Sensor 2 was bad. Looks like it is a $74 part so I just want to make sure it's not terribly difficult to replace.
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