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Bosch replacement O2 problems

Discussion in 'General Tech and Maintenance' started by zsm, Aug 4, 2003.

  1. zsm

    zsm Junior Member

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    hey everyone.

    i have a '96 civic ex coupe--stock. i just replaced my primary O2 sensor w/ a bosch, instead of OEM. the mileage seems to be back where it needs to be, but the bosch gives me a check engine light when the car is cold.

    i have tried two new bosch O2 sensors w/ the same results. i never had a check engine light w/ my old sensor--i just replaced it, b/c i was noticing the symptoms of it needing to be replaced.

    i have a scanner, and the sensors are working fine. i'm getting code--P0135--'electrical problem w/ primary O2'. my old O2 sensor doesn't even do this.

    like i said, it is only when the car is cold, and for the first minute of running. anyone else had problems w/ the bosch's?

    i've only had my civic for a few months, so all help is greatly appreciated.


    zack
     
  2. Dman1100

    Dman1100 Senior Member

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    why not just buy an oem?
     
  3. zsm

    zsm Junior Member

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    $250 vs $60.
     
  4. hcivic.com

    hcivic.com Senior Member

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    the bosch does not heat up like the oem?
    this could be the only thing i could think of
     
  5. zsm

    zsm Junior Member

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    my thoughts, too. can anyone guide me to local stores or internet where i can purchase an NGK? thanks.
     
  6. kingwilly

    kingwilly Senior Member

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    denso makes good ones but i dont know how much they cost
     
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