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    Major run problems 2002 3.7, Any help will help

    Hi All, This is the closest thread I have found to the problem that I am having. I have a 2005 Jeep liberty 3.7. I started with 10-12 codes like posted above and worked it down to codes 300 and 306, now I am stumped. We have replaced:tps, cps, ckps, o2 sensors, plugs, coils and injectors all...

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