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  1. H

    Catalytic Converter Help

    I did use NGK. I'm going to replace both downstream sensors before I change the cats. Anyone know if they would be cover under warranty?
  2. H

    Catalytic Converter Help

    I just changed one of the upstream sensors a few days before the codes came up. I failed my emissions test because of the codes. The jeep feels a little sluggish on the highway.
  3. H

    Catalytic Converter Help

    I just got a 0420 and 0430 code on my Liberty. Is it possible for both of the cats to go bad at the same time? Could it be something else causing those codes?
  4. H

    Stop Lights Not Working

    I have the same issue now. What was the problem?
  5. H

    O2 Sensor Confusion Clear Up

    Is bank 2 sensor 1 closer to the engine or back? I know its the passenger side. Thanks
  6. H

    O2 sensor location

    Is bank 2 sensor 1 closer to the engine or back? I know its the passenger side. Thanks

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