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Thread: o2 Sensor Confusion

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  1. #1
    TGC Regular
    Join Date
    11-14-2007
    Location
    Boothwyn,PA
    Posts
    719

    o2 Sensor Confusion

    OK so i have driven my car for a about 3 months with out either of my o2 sensors. I have not had my downflow sensor in since a pretty much got my car about a year. Now i have had a cel because of the o2 sensor the whole time. I still do not have my upflow o2 sensor in but yesterday i put my downstream one in and my cel turned off. Why is it not throwing a code for my uopstream????? BTW its a 94 obd1.5

  2. #2
    TGC Regular
    Join Date
    11-14-2007
    Location
    Boothwyn,PA
    Posts
    719
    *Bump* So no one has a clue????......

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