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front oxygen sensor

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  1. 9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    I'm having issues with the front oxygen sensor in my 2004' 9-3. Readings from the ECU (via OBDII) reads steadily around 0V on the oxygen sensor signal so the Fuel Trim gets maxed out to compensate with more fuel. I suspect that the oxygen sensor is not faulty but might be incompatible with the...
  2. 9-5 Workshop
    I'm wondering if anyone has any insight to this issue. My 2003 9-5 Arc wagon started throwing a code for the front oxygen sensor shortly after I bought it. I installed a Bosch replacement and the code did not go away. Even after resetting the computer and clearing the codes, the check engine...
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