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kevin 4/28/2010
2005 Chevrolet Colorado Sport 5 Cyl 3.5L - Engine
Which O 2 sensor is the Bank 1 sensor? Before or after the converter?
It was diagnosed as a Bank 1 faulty O 2 sensor. Is that before or after the converter?
1 Answer
  • HouseCallAuto
    HouseCallAuto 4/28/2010
    This engine has only one bank because it is an inline engine and not a V engine. There is bank one sensor 1 (before the cat) and there is bank one sensor 2 (after the cat) The title of the code will state that.

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