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Thread: Cel question

  1. #1
    Certified Gearhead
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    Default Cel question

    Does a b18c1 motor have a upstream and downstream o2 sensor? if im getting a fuel malfunction bank 1 cel does that mean that is the o2 sensor upstream is bad and my computer is relying on bank 2?

  2. #2
    Barefoot Motorsports
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    Quote Originally Posted by sohcEX
    Does a b18c1 motor have a upstream and downstream o2 sensor? if im getting a fuel malfunction bank 1 cel does that mean that is the o2 sensor upstream is bad and my computer is relying on bank 2?
    yes and bank 1 sensor 1 is the 1 before the cat.


  3. #3
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    Thanks bro

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