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  1. TJ JZ

    Catalytic Converter Monitor Incomplete

    I've driven it around the last few weekends and can't get the cat monitor ready. I've got the o2 monitors ready though. Last thing is the cat monitor to be ready... I guess I may need to put it on jack stands if I cant get a roadway without lights, bends, speed changes, other cars, etc. to run...
  2. TJ JZ

    Catalytic Converter Monitor Incomplete

    Thanks for this writeup. I also have the cat monitor not ready. Im an original owner of a 2000 TJ 2.5, which has takeoff wheels/tires from a 2018 JK Rubicon and a 2”leveling kit, and an old aftermarket radio/alarm. The fan switch keeps going out too (5th time I think), and has melted a few...