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  1. Repairs - Electrical problems and questions
    I currently have a 2010 jeep compass 2.4. i am located in CA and failed for smog due to O2 monitor not ready. I took the car to a smog technician who performed a Mode 6 scan and he says they all tested normally. I took the car to another mechanic who replaced all o2 sensors.. he says the o2...
  2. Repairs - Mechanical problems and questions
    A few weeks ago my car started throwing a P0420 (Catalytic converter below threshold). I had the code cleared, it then came back on and proceeded to go back off on its own a week later. It returned a few days ago so now I am trying to figure out if this is a catalytic converter issue or an O2...
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